lecture preflight 04
1: 6 pennies
2: They should weigh 10 pennies on a scale and derive the weight
in grams. Then they should figure out the weight of one penny in grams
by dividing the weight of the 10 pennies by 10. They should then take
the weight on one penny, in grams, and multiply the answer by 6 because
the pencil equals the weight of 6 pennies.
3: The balance would still be level because the masses of the two
objects are the still the smae and would still be equal. Their weights
would be less due to a lesser force of gravity on the moon.
4: I liked learning how to contruct my own balance!
5: I still really want to know how keyless entry works!
lecture preflight 04
1: 6 pennies
2: measure the weight of ten pennies and divide the number of
grams by the number of pennies to identify the number of pennies that it
would take to equal one gram he would then have to figure out how many
grams the pencil had by measuring the number of pennies and multiplying
by the number of grams in each penny for example: 10 pennies = 5 grams;
each penny is .5 grams; a pencil (weighing 6 pennies) is 6*.5= 3 grams
3: the balance would not be level and the side with 2 nuts would
appear to weigh more
4: how to use a balance to teach algebra equations!
5: why does sunlight provide energy?
lecture preflight 04
1: The could say that if they use a unit of "penny" (just like we
might say "grams"), the mass would be 6 pennies. They could also find
the mass of one penny in grams or something and then convert their
answer to grams.
2: He could use a scale to get the mass in grams of one penny.
For example, one penny might be equal to 2 grams. Then he could multiple
2 grams times the number of pennies the pencil weighed (6), to find the
mass in grams to be 12 grams.
3: I'm pretty sure we said that mass is the same all over space
and even outside of Earth. Therefore They would still be equal masses.
4: I think the balance being used as a "math machine" was really
neat. You could use it for algebra and multiplication. I thought it was
really cool figuring out that 2 nuts in whole 2, was the same as like 1
in hole 4.
5: I've heard that leaving the water running while brushing your
teeth or something is bad and wasting water. Doesn't it all get recycled
or no?
lecture preflight 04
1: 6 pennies
2: well, I'm not sure why he cant just use a scale to weight the
pencil... but if that wasn't an option he could use a scale to determine
the mass of a penny in grams and then multiply that by six to equal the
mass of the pencil.
3: I think that the balance would still be level because both
sides would have a lower weight, but they would still be proportional to
each other.
4: That the same quantity of sugar water weighs more than that
quantity of pure water.
5: How do "magic eye", 3D pictures work?
lecture preflight 04
1: the mass of the pencil is equal to 6 pennies
2: he would need a scale to find the amount of grams of the
pencil or six pennies.
3: i do know that the same thing in lab would not happen on the
moon because to measure weight we need gravity. the moon does not have
gravity.the materials would float around.
4: i think it is interesteing to use math to determine which hole
to place an object to make the measuring ruler leveled.
5: no class last week.
lecture preflight 04
1: The mass of the pencils in the amount of atoms that make it
up.
2: Well Issac can measure the pennies on a double pan balance and
that would equal the mass of the pencil.
3: I think that the side with two nuts would tilt the balance. I
think this because on the mooon there in the gravity to equal out the
weight.
4: That you can balance nuts by simply moving the nuts so the
washer hole numbers add up.
5: What makes a basketball bounce?
lecture preflight 04
1: 6 pennies
2: Figure out the mass of one penny in grams and multiply by 6.
3: Since the mass of the objects are the same here and there,
gravity wouldn't have an effect on the objects any differently here than
on the moon. So it would be the same, I think.
4: You can see algebra!
5: How do icicles form?
lecture preflight 04
1: the mass of the pencil is 6 pennies.
2: To find the mass of the pencil in grams, he would first find
the mass of one penny. Then he can find the mass of the pencil by
multiplying the mass of the penny by six, because that is the number of
pennies that balanced the pencil.
3: If we went to the moon and did this exact experiment, I think
that the balance would act the same because both the weights are
decreased by the same fraction.
4: I thought that the way that the balance worked with the holes
and balancing the two sides was very interesting and it will be very
useful in a classroom one day to visualize addition.
5: How does a microwave work?
lecture preflight 04
1: They would answer 6 pennies, but they measured weight and not
mass so the weight would be equal to 6 pennies. They would have to do
more to figure out the mass of the pencil.
2: Well he would have to find the density and volume of his
pencil and then multiply the two to get the mass.
3: I think the same thing would happen but the nuts may have to
have a greater weight in order to be pulled by the moon's gravity.
4:
5: how do colds or viruses spread?
lecture preflight 04
1: 6 pennies
2: Find out how many grams a penny is. if a penny is 5 grams, and
it takes 6 pennies to balance a pencil, Issac would multiply 5 by 6 to
find the mass of the pencil in grams. Or he could put the pencil on the
balance and see how many grams it is.
3: I think the same prinicples would be true, because the stuff
that the nuts are made of doesn't change.
4: I can make a balance
5: why does salt melt snow
lecture preflight 04
1: Take the mass of the 6 pennies and you have your answer.
2: Determine the mass in grams of the pencil and pennies,
determine the mass in grams of the pennies and then subtract.
3: It is all relative. While objects weigh less on the moon, the
ratios would still be the same so the balance would still be level.
4: Absent and sick, sorry.
5: How does NASA create practice environments with no gravity?
lecture preflight 04
1: The mass of the pencil is equal to the mass of six pennies.
Because they have equal mass, they in turn must have equal weight. I
would tell Albert and Isaac to measure a single penny in grams on a
regular balance and multiply that by six to get the weight in grams of
the pencil.
2: I explained the steps in my answer to question one. :-)
3: I don't think it would balance out. The reason this works on
earth is because of the impact gravity has on a balance. On the moon, I
think that the side with two nuts, regardless of their position, would
appear to weigh more because gravity is not impacting the balance.
4: I learned that the difference between mass and weight is that
weight has to do with gravity while mass does not. I also found it
extremely interesting that a peep, a washer, and two paper clips is
about the same weight as a U of I pin, a filled film canaster.
5: How long will it take for all the snow to melt? What
temperature is needed outside for this to occur as fast as possible?
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: He would need to measure one penny and see how many grams a
penny weighs. Since he knows a pencils is equal to 6 pennies you would
take the mass of the penny and multiple it by 6 to find the mass of the
pencil.
3: On the moon there is less gravity meaning that weight would
decrease on the moon, but the mass would stay the same. On the moon the
left side would appear to be more because there is more mass on the left
then on the right.
4: What I thought was very interesting was how you could use the
balance to help teach children about math. I thought that was a very
cool way to show math and very good for visual learners when they are
just starting to learn a new concept.
5: Why Pluto not a planet?
lecture preflight 04
1: The mass of the pencil would be 6 pennies.
2: Issac could find the mass (in grams) of one penny and then
multiply that number by 6 to get the mass of 6 pennies or the one
pencil.
3: I think it would be exactly the same because on the moon all
the nuts weigh the same relative to each other there and the balance
works the same exact way.
4: I learned about that algebra balance. I am going to be a
junior high teacher and I think that balance to help teach pre-algebra
is great and I will definitely remember it.
5: Did global warming help to cause the snow storm last week?
lecture preflight 04
1: 6 pennies
2: He could measure six penny in grams and change that to mass in
grams for 1 pencil
3: it would still balance b/c gravitational pull would be the
same
4: algebraic machine
5: when bubble gum shinks in air is it the same phenomenon as
baloon shirnking in N gas?
lecture preflight 04
1: Albert and Isaac would find out how much mass 1 penny is and
then multiply it by 6 to get the mass of the pencil.
2: He would have to figure out the conversions between the the
mass of the pencil and a gram. Then since he knows the mass of the
pencil, use the given equation to convert it into grams.
3: I think that the same thing would happen because even though
the weights would be different, the mass would be the same and so it
would require the same set up (2 nuts in hole 3 on the left and 1 nut in
hole 6 on the right) to balance.
4: I really enjoyed the balance experiment when we had to write
on the ruler the numbers and then use some math to figure out which
number the right side would have to be on in order to balance with the
left side.
5: What's in ibprofen that can somehow cure headaches, pain, etc?
In other words, how does ibprofen work?
lecture preflight 04
1: The mass of the penny multiplied by 6.
2: Weigh one penny and multiply it by 6.
3: Same thing. By using a balance u measure the mass, and the
mass is the same everywhere.
4: That mass is the same everywhere.
5: What is my weight on the moon or other planets?
lecture preflight 04
1: The mass of the pencil is equal to the mass of 6 pennies.
2: To get a more definite answer Albert and Issac will have to
find the mass of one penny and then multiply that number by 6.
3: It would be harder to obtain balance because of the lack of
gravity on the moon. Scales depend upon graviy in order to measure
accurately.
4: Objects do not have to be the same distance apart in order to
be equally balanced.
5: How long does it take for water to completely evaporate?
lecture preflight 04
1: The mass of a pencil = the mass of a penny x 6
2: He would have to find an object with the weight of 1 gram and
then measure the penny against it.
3: The same thing would happen because we are measuring mass,
which is the same everywhere--gravity does not matter where mass is
concerned.
4: I liked learning a way to teach math to children (the hex nut
experiment).
5: Okay, I heard this physics problem somewhere: I think it's a
Stephen Hawking thing-- something about theoretical physics and a tennis
ball never really making it to the net, because if it is halfway there,
then you can divide that in two, and keep dividing it in two, and keep
dividing it in two, and the ball will never get to the net because you
can always keep dividing by two. Does this ring any bells for you and if
so, could you explain what the point of this is?
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: Isaac could use a measuring balance to calculate the mass of
one penny. He could then determine the mass of the pencil by multiplying
the mass of one penny times six. Then he woiuld know how much much the
pencil has.
3: I think that the exact thing would happen. This is true
because the nuts retain the same mass, which is measured by the homemade
balance. They would have a different weight, but each nut would still be
equivalent to another.
4: I found it very interesting that the balance we made in class
could be used to teach students algebra. It shows you how much math and
science really go together.
5: What temperature does snow melt at (the snow from the snow
storm)?
lecture preflight 04
1: 6 pennies
2: Measure the mass of ten pennies. Then determine the mass of
one penny by weighing ten.
3: If they were put on the moon I don't think they would balance
because gravity makes things weight less than they do on earth.
4: I loved the hook nut activity. It was a great way to integrate
physics, science, math and algebra.
5: How are pictures developed?
lecture preflight 04
1: they could say its mass is equal to 6 pennies.
2: he could measure how much one penny weighs in grams, and
multiply that by six.
3: It would be the same. Even thought the weight might change,
the mass is still the same, and either way, the mass would change
equally on each side, so that the weights would still be even.
4: A paper clip weighs about 1 gram...an easy measuring tool for
comparisons
5: on average, how long does it take for science to invent
something new?
lecture preflight 04
1: The mass of the pencil is 6 pennis; if they knew the mass of a
penny in grams, they could convert the mass of the penny into grams.
2: 1. Find out what the mass of 1 penny is in grams (it would be
best to find the mass of 10 pennies and then divide this number by 10;
an average is usually more accurate) 2. Multiply the mass of 1
individual penny by 6 (for 6 pennies = the pencil)
3: I think the same thing would happen because the differences in
mass would be balanced by the fact that gravity would not be acting as
strongly on the nuts on either side of the balance
4: The balancing pattern is interesting, I didn't know there was
such a simple pattern to figure it all out
5: How do animals that live outside survive when the temperature
is below freezing?
lecture preflight 04
1: 6 grams
2: see how many paperclips balance out 6 pennies. Since one
paperclip equals 1 gram. count accordingly
3: I do not think it would work because of the gravity factor or
lack of. You would have to measure based on mass rather then on weight.
4: that 1 paper clip equaled a gram
5: Can you have extremely acidic spit!? gum always dissolves in
my mouth and I don't know why!
lecture preflight 04
1: The mass of the pencil equals the mass of 6 pennies.
2: Find out the mass of a penny in grams, then multiply it by 6
for the mass of the pencil.
3: It will still be balanced. With a balance, the force of
gravity is canceled because it pulls "equally" on each side of the
balance.
4: I thought it was interesting how easy it is to construct a
balance. I always thought it was a complex machine because of how they
looked in other physics labs.
5: Explain dark matter?
lecture preflight 04
1: 6 pennies
2: find out how many grams are in one penny. then multiply the
number of grams per penny by six pennies.
3: I think it would be the same, because gravity would be pulling
on each object equally (just as it does on earth). Although the objects
might not weigh the same amount (compared to weight on earth) they will
weigh the same amount with relativity to eachother and they will have
the same mass as they did on earth.
4: Learning about t=rf and understanding torque.
5: If I threw a baseball in outer space, it would keep going.
What would happen if I threw one on the moon, compared to distance here
on earth?
lecture preflight 04
1: We do not know the mass for sure; all we know is the weight of
a pencil. By measuring it on a balance, gravity is pulling down on the
pencil- measuring the weight, not mass.
2: Assuming that it is okay to use pennies to calculate mass
instead of weight, you would first need to know how many grams a penny
weighs. Then multiply that number by 6.
3: Since the moon has barely any gravity, the nuts would not hang
correctly from the balance. The nuts would just float around or hang in
wierd ways (just straight down like we would need it to).
4: The difference between mass and weight (I always used to get
those mixed up), and the "Algebra Machine." I can't wait to use that
balence in my future classrooms to teach basic math and algebra!
5: What causes gravity? I know the moon has less gravity than the
earth because it is farther away from the earth, but then what causes
the earth to have so much gravity?
lecture preflight 04
1: The mass of the pencil is equivalent to the mass of 6 pennies
2: In order to figure out the mass of the pencil in grams, he
would need to figure out of the mass of one penny in grams and then
multiply that by 6
3: It should still be equal because although the amount of
gravity on the moon is different than on Earth, the mass of the objects
will still be the same and they should still balance out in the same
manner.
4: I learned that balancing things out can actually be figured
out in a mathematical way.
5: What makes black ice occur and what exactly is it?
lecture preflight 04
1: The mass of the pencil would be equal to the mass of 6
pennies.
2: Since he knows that a pencil has the same mass of 6 pennies,
he could find the mass of one penny by using a scale, and then multiply
that by 6 to find the mass of the pencil.
3: I think that it would balance pn the moon because on earth it
would balance. Even though the moon has 1/6 the force of gravity of the
earth, the force acting on the nuts would be equal even though the force
is less than that of the earth. The mass of the nuts would remain the
same, so they would still balance in the respective positions.
4: I really liked the analogy of using the balance to introduce
algebra equations to upper elementary students.
5: If there are so many satellite signals and radio waves around
us every day (from cell phones, computers, radios, etc.), how come we
are not affected by them? Or are we and from overexposure they will hurt
us someday?
lecture preflight 04
1: They would say, the mass of the pencil is 6 pennies because it
takes the same amount of force to move 6 pennies as it does 1 pencil.
2: He would have to weigh or assume that one penny equals one
gram so therefore a pencil equals six grams.
3: I think that it would still be balanced because although there
is little gravity on the moon it still is the same amount of force being
pulled down on each side.
4: The fact that you can balance different amounts on one side of
a balance and yet still be able to counter act it by putting only one
just farther away.
5: why are you unable to see when you walk from the outside into
a brightly lite building?
lecture preflight 04
1: They would say that the mass of the pencil is the same as the
mass of 6 pennies.
2: Isaac would have a few options. He could either put the pencil
on a balance, and find out the mass, or he could find out the mass of
the 6 pennies. Another option would be to find the mass of one pennie
and multiply that by 6.
3: I think the same thing would happen because on the moon, the
mass is the same as it is on earth. (only weight is different)
4: I learned that when balancing two things, it doesn't matter if
one hangs much lower than the other initially because they are still
balanced. It only depends on what the mass is of the objects in the cup.
5: How do cell phones work?
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: He would have to find the weight of one penny by using the
scale balance. Then he would use his scale to find how many pennies
equals one pencil. Then he would take the weight of one penny times how
many pennies he need to equal the weight of the pencil.
3: I think the same thing would happen, but not as drastic.
Because there isn't as much gravity on the moon as there is on earth,
the cups would not move as much because there isn't as much gravity
pulling down on them. However, I think the balance would be equal if you
put 2 nuts on hole 3 on the left side and on nut on hole 6 on the right
side.
4: I learned that you could find an equation using the balance we
made-I thought that was pretty cool!
5: How many trees are cut down when a spiral notebook is made??
lecture preflight 04
1: The mass of the pencil is equal to the mass of 6 pennies
2: Place a penny on a scale to find it's mass in grams. Multiply
this measurement by 6 to determine the mass of 6 pennies and also the
mass of the pencil.
3: The scale used to do this measurement requires gravity, which
is lacking on the moon. Because there is less gravity on the moon the
method and answers from using the same scale will be different from the
answers determined on Earth, if not entirely impossible to determine.
4: An object's mass is constant everywhere, whether it's on the
moon or on Earth.
5: Why do rock salt melt ice and snow?
lecture preflight 04
1: The mass of one pencil is equal to the mass of 6 pennies.
2: Isaac would first have to find the mass of one penny. Then he
would have to multiply that number by 6 to find the mass of the pencil.
3: The balance would also be level on the moon. The moon's
gravity will be applied to the entire balance, so it will not have an
effect on leveling the balance.
4: In the balances we made physically demonstrate balancing
mathematical equations. The hole number multiplied by the number of nuts
must be the same result on each side in order for the balance to be
level.
5: How can weather change so dramatically within one day?
lecture preflight 04
1: The mass of the pencil would be 6 pennies.
2: 1. Weigh one of the pennies and record in grams. 2. Weigh the
mass of 10 pennies and record in grams. 3. Find out the mass of one
penny per ten pennies. 4. Then use multiplication to figure out the mass
of the pencil 5. The weight of one penny in grams times six equals
weight of pencil in grams.
3: The mass would be the same because it is merely how much stuff
(proton, neutron, and electron) is in the atom. However, the weight
would be different because of gravity. The weight would be less because
there is less gravity on the moon.
4: I really liked how we related science (mass and weight) to
math. It was neat to see the homemade scale could help children learn
multiplication and algebra! I am excited to use this helpful tool in my
classroom.
5: Why do we have static electricity during the winter? I am so
sick of static!!! :)
lecture preflight 04
1: Mass is how much stuff an object is made of. So the particular
pencil is made up of as much stuff as 6 pennies.
2: He can put one penny on a lab balance and take the exact
weight in grams. He can then use his homemade balance to see how many
pennies equal his pencil. Then take however many pennies and multiply is
by the actual weight of the penny. Or he can just put the pencil on the
lab balance and see how many grams it is.
3: Most balances measure weight rather than mass and weight is
determined by the gravitational force. Since there is no gravity on the
moon, it would be hard to do the same experiment on the moon.
4: At the grocery store when you put long vegetables on the scale
and some of the excess hang off the scale, it really doesn't affect the
weight.
5: Why does make up clog your pores?
lecture preflight 04
1: the mass of the pencil is equal to the mass of 6 pennies.
2: weigh the pennies first then see how many pennies equal the
weight of the pencil.
3: I think it would stay the same because the center of gravity
would sitll be the paper clip holding the nuts.
4: two different liquids can weigh different amounts.
5: How long will it take for all of the snow to melt?!? Is there
any way to figure it out?
lecture preflight 04
1: mass of the pencil is mass of a single penny multiplied by 6.
2: Take mass of a penny in grams and multiply it by 6.
3: it would also balance out in the moon because the mass or
weight of each nut are identical from each other on the moon as well as
it is on earth.
4: Being able to predict the number of nuts at which hole would
balance out the opposite was really cool
5: how does the whole echo thing work in front of the follinger
auditorium? if you yell in front of the auditorium only you can hear the
echo...
lecture preflight 04
1: The mass of this pencil is 6 pennies.
2: 1. Weigh a penny on a scale. 2. Multiply the mass of the penny
times 6.
3: I think that these results would be the same on the moon
because although the force of gravity on the moon would be different, it
would still affect both sides equally.
4: I did not know that there was multiplication involved in
balancing objects at different distances.
5: Why does sugar stop dissolving in a cup after you put in a
certain amount.
lecture preflight 04
1: The pencil would have the same mass as the 6 pennies, because
for the scale to be balanced gravity is pulling exactly the same on both
sides. And since the scale is only being affected by one kind of
gravity, the pencil has the same effective weight as the 6 pennies,
meaning the mass must be the same as well.
2: Take the mass of one penny and multiply by 6, or take the mass
of all 6 pennies, and you know the estimated mass of the pencil.
3: The balance would be at equilibrium at the same points,
because even though the gravity is different, the gravity of the moon
would be pulling equally on both sides, so it would still be in balance.
Gravity changes weight, but mass is constant.
4: the school put off calling the second snow day to avoid mass
intoxication of the student body
5: besides from boiling, how can water be desalinated?
lecture preflight 04
1: 6 pennies
2: figure out how many grams each penny is and then take that
number times 6
3: same. although the weights would be lighter you would use the
same holes to balance out.
4: the distinction between mass and weight mass is the amount of
"stuff" in an object, whereas Weight is gravity's pull on an object.
5: why does ocean water sometimes look green?
lecture preflight 04
1: The mass of the pencil equals 6 units. (1 penny = 1 unit)
2: 1. Find the mass of 10 pennies and then divide that mass by
ten in order to find the mass of one penny. 2. Then put the pencil in
one cup of the balance and add as many pennies to the other cup until
the two balance out to equal each other. 3. However many pennies used,
multiply that by the mass of one penny. That number is the mass of the
pencil.
3: It would be different because the moon has less gravity.
4: The length of the cups from the peg board on the balance we
made does not affect the weight on each side.
5: Is there really such a ringtone that only some people can hear
because of its high pitch/frequency?
lecture preflight 04
1: The mass of the pencil is the same as that of 6 pennies.
2: Isaac would have to measure the mass of a penny and see how
many grams it was. He would then multiply the amount of grams in one
penny by six because one penny has a mass of six pennies.
3: The mass would also be the same because objects do have mass
on the moon. However, there would barely be any weight.
4: I really enjoyed the lab with the balance. I found it really
interesting that there is actually a pattern for the balance. I had no
idea that this was even possible.
5: Why do zebras have stripes? Does it have to do with any
biological reasons?
lecture preflight 04
1: the same as the mass of the 6 pennies
2: figure out how many grams in a panny and times it by 6
3: the same thing, both sides would weigh equally lighter on the
moon
4: how ice skates work
5: why does a peep blow up in the microwave, how does a microwave
work?
lecture preflight 04
1: They would answer the question using the pencil as the unit.
They would determine that the mass of the pencil is 6 pennies.
2: Isaac would have to determine the mass of the pennies in
grams. He determine the mass of all 6 pennies, or he could find the mass
of 3 pennies and multiply that by two. Since we know what the mass of a
pencil is in pennies, all it leaves us is to figure out the mass of 6
pennies.
3: I believe it would be the same. The mass of the objects are
unchanged. Only the pull of gravity on each object is different.
4: I learned how to make a balance.
5: How do you throw a curveball?
lecture preflight 04
1: The mass would be the weight of the 6 pennies put together to
make up the weight of the pencil.
2: Isaac would have to find out what the mass of one penny is
first.He would do this by weighing one penny and seeing what the weight
is in grams. After this done he can multiply that by 6 and get the mass
in grams for the pencil.
3: I think the experiment would stay the same. In the moon,
weight is 1/6 of what it is on earth but it would be taken out eqaully
on all the objects which still allows it to balance out. I think that
since there is less gravity that will balnce out with the fact the items
weigh less.
4: Mass and Weight are actually very differnt and i always
thought they were the same.
5: Why is grass green?
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: He would have to measure one penny to find out the mass of one
penny. Then since one pencil is 6 pennies, he would multiple the mass of
one penny times 6 to find the mass of a pencil.
3: On the moon the balance would not be be balanced because mass
stays the same, and there is more mass on the left than the right.
4: We learned that the balance can be used a model for math.
5: What causes blizzards?
lecture preflight 04
1: 6 pennies
2: Weigh the 6 pennies on a triple beam balance. Divide the
result by 6 to get an average.
3: There would be no weight (or very little weight) and therefore
everything would just fly around in space. There is no gravity to pull
down on the balance or what the balance is holding.
4: I learned how to make my own balance. I think that it's cool
that we get to figure out how to make our own devices instead of just
using one that probably would take twice as much money to buy!
5: Someone told me that if you microwave an ice cube that nothing
happens to it...is that true?
lecture preflight 04
1: 6 grams
2: weigh a paperclip and then multiply that by the number of
paperclips it takes to even the scale
3: It would still be level because the weights of the nuts would
be equally less on the moon.
4: All paperclips weigh about 1 gram so a paperclip can be used
as a tool of measurement quite easily.
5: How hot does it have to be to melt a large pile of snow in one
day?
lecture preflight 04
1: If a penny was a unit, the pencil would have the mass of six
units.
2: He could just weigh the pencil on a scale. Or he could weight
the six pennies, divide the answer by six and find the mass of one
penny. He could use the home made scale to find out how many pennies are
equal to the pencil and substitute the weight of the penny.
3: I think they would still be equivalent because even if the
weight changes, the weight ratio would still be the same. I'm also
thinking that they would float away into space maybe.
4: The process of balancing weights can be used to explain
algebra. I liked learning the formula to find that out.
5: What causes the snow to sparkle when it first snows?
lecture preflight 04
1: The mass of the pencil would then be about 12 grams. This is
because I looked up the mass of a penny online and it is about 2 grams.
2: To know the exact mass of the pencil in grams, Isaac would
have to figure out how much one of the pennies weighs in grams by using
a balance. As we learned in our lab, you need to find the mass of one
penny and then add additional pennies to one side of the balance until
it equals the side with the pencil.
3: I think that the balance would be thrown off because of the
force of gravity on the object in space. Although the masses would
remain the same and the weight would change, the percent by which these
two factor changed would be the same. Therefore, this would have the
same result on the moon.
4: As we found out when creating our own balance in the lab, it
is essential that the width of the supporting object is about the same
width as a string.
5: What is a cloud made of?
lecture preflight 04
1: 6 pennies.
2: Find out what the ratio of pennies to grams are. Do some math
to convert the number of pennies it took to balance the pencil into
grams.
3: It would still balance. The mass of the two objects are still
equal, and the new gravity (the moon's) acts on both objects equally.
4: How to make a balance.
5: Pigs don't sweat- is rolling in the mood their equivalent of a
dog's panting?
lecture preflight 04
1: This would mean that the mass of the pencil is equal to the
mass of 6 pennies, or 6 times the mass of one individual penny. For
example, say a penny has a mass of about 3 grams. This pencil would have
a mass of about 3x6 or 18 grams.
2: He could place it on an actual balance and record the
measurement in grams. However, if Issac decided to use the homemade
scale, he would have to take a couple more steps. He would have to know
what the mass of a penny is in grams. He can do this by putting a penny
on one side, and paperclips on the other until it is balanced. It is
generally accepted that a large paperclip is about 1 gram, so if a penny
is balanced by 3 paperclips, the penny has a mass of about 3 grams. Or
perhaps, Issac already knows what the mass of a penny before starting.
In either case, he would then place the pencil on one side of his
balance, and the pennies on the other side until it is balanced. Say
that it took 6 pennies to balance, that would mean that the pencil has a
mass of 6x3=18 grams.
3: I think the same thing would happen because mass is the same
on the moon as it is on the Earth.
4: I thought learning about the algebra machine was interesting.
I liked that it was a hands-on, physical way to demonstrate algebra
problems.
5: What causes snow drifts?
lecture preflight 04
1: the equivalent of six pennies
2: He could weigh one penny and multiply his answer by six.
3: It may be different because the experiment depended on the
weight of the nuts and weight depends on gravity. Since there is little
gravity on the moon it would be different.
4: how to use the "algebra stick"
5: How would you measure mass of an object?
lecture preflight 04
1: the mass of 6 pennies
2: he would weigh one penny in grams and multiple that by 6.
3: i dont think it would matter, because there is no weight on
the moon, therefore it does not matter that one said weighs more than
the other. the objects would float away anyway!
4: i learned that even though our group takes a while before we
know how to do the lab, we do it right and get pretty close to the right
answer (without cheating)!
5: Why do people get hiccups, and how can they get rid of them!?
lecture preflight 04
1: mass pencil = mass 6 pennies
2: figure out how much one penny is in grams then mulitply by 6
3: same because the effect of gravity would be cancelled on both
sides
4: I thought the balance beam was a good learning experience. At
first I wouldnt know on what hole I would need to place a nut, if I had
two nuts hanging from another side. But after experimenting it made
sense.
5: Why does the toliet water move in different directions in
different countries?
lecture preflight 04
1: The mass of the pencil is equal to the mass of the 6 pennies
2: Figure out how much a penny is in grams and than multiply that
by six to find out the what the mass of the pencil is in grams.
3: Being on the moon would make no difference because the effect
of gravity will be cancelled on both sides of the pivot.
4: There's more than one way of balancing the holes when objects
are hung from it.
5: Why does wood float on water?
lecture preflight 04
1: The mass of the pencil is equal to the mass of 6 pennies.
2: Isaac could weight the six pennies on a scale. Whatever the
scale read in grams, would be what the pencil weighs in grams.
3: Because the gravitational pull on the moon is different than
on earth, the objects would be much lighter on the moon. However, they
should still weigh the same. Therefore, I believe that they would still
balance eachother out.
4: I can make a useful tool for teaching math with two cups,
paperclips, string, and peg board.
5: With all the controversy about stem cell research in the news,
what exactly are the possible outcomes that could come from doing stem
cell research?
lecture preflight 04
1: Since one pencel is equal to 6 pennies, the mass of the pencil
would be about the same as the mass of one penny multiplied by six.
therefore, you can find the mass of the penny, multiply it by six, and
get your answer.
2: First, Isaac should measure how many grams one penny is. Then,
since six pennies is equal to about one pencil, you can multiply the
number of grams for one penny by six to get the answer.
3: I think the experiement would remain the same because the
weight on the moon is the same as the weight on earth.
4: I learned that you can use other methods to measure things
aside from the standard measuring techniques. You can use something that
weighs less than a specific object, and see how many of the smaller
objects are equal to the bigger object.
5: How does sound travel?
lecture preflight 04
1: The mass of the pencil equals the mass of 6 pennies.
2: For Issac to find the mass in grams, He could measure the
weight of the pennies on a true scale to discover its exact weight. And
because the 6 pennies are equal to the pencil to get a more accurate
measurement, Issac could measure a mulitple of 6 (like 12, or 18) and
divide it by 6 inorder to get a better answer.
3: On the moon, although things do not weigh the same as they do
on earth, I think that because the objects all have the same mass that
the gravitational pull will have a balanced reaction to the sides and
therefore there would be no difference.
4: I learned how a balance could be used as a way to teach math.
I had never seen this before, and I think that it could really help some
visual learners how to equivalate fractions.
5: Why does gravity have such an impact on the weight of objects;
and why is the gravitational pull stronger on earth than the moon?
lecture preflight 04
1: 6 pennies
2: find the mass of one penny by averaging and multiply it by 6
3: i think it would still be level because the force of gravity
pushing on it would be different but the torque would still be equal on
both sides
4: I relearned what torque was from high school physics
5: What does alcohol really do to your body when you drink?
lecture preflight 04
1: six pennies
2: find the mass of one penny using a scale (in grams) and then
multiply by six- this is the mass of the pencil in grams
3: on the moon, i think it would have the same result, because
although the weights of the nuts change on the moon, the mass never
does.
4: i left early because i was sick... but i learned how to make
an affective balance from limited materials..
5: how do planes stay up in the air?
lecture preflight 04
1: The mass of the pencil is the same as six pennies.
2: Isaac could measure the mass of the six pennies to find the
mass of the pencil since six pennies is the same mass as the pencil.
3: THe experiment would be the same. Everything has the same mass
when it is on the moon. THe difference will be that the objects weigh
less.
4: I learned the general rule about the mass and the distance on
the scale in order to balance it.
5: How come the snow is sometimes considered good packing snow
but other times the snow is not good for packing?
lecture preflight 04
1: the mass of the pencil is equal to the mass of 6 pennies.
2: either put the pencil on a balance and find it's mass.. or use
a more difficult process and do not weigh the pencil. put the 6 pennies
on the balance and measure the mass in grams, and the pencil will be the
same. if you can only weigh one penny, then find its mass and then
multiply it by 6 to get the answer.
3: they will appear balanced because since the nuts weigh such a
small amount on earth, they will weigh even more on the moon. adding
such a small amount of weight onto a scale wouldn't make much of a
difference and the 2 sides would seem equal. ?
4: how to use the "balance" we made as a math tool to teach
children math problems.
5: why is fresh snow so sparkly?
lecture preflight 04
1: The mass of the pencil is the same as 6 pennies.
2: He would have to find how many grams one penny is and then
multiply that number by 6.
3: I don't think anything would happen because there is not as
much gravity pulling down either side of the balance.
4: I thought that the experiment with the nuts hanging from each
side of the balance and moving them around to make each side equal was
really interesting.
5: How can I be really cold in a room where my friend is really
warm?
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: Isaac would have to first weigh the mass of a single penny.
Then he would take the average of about ten pennies and then find the
average mass of a penny. Then he would multiply that amount by 6 since
the mass of the pencil is equal to 6 pennies.
3: This would not be the case on the moon. Since there is no
gravity, there would be no force acting on the nuts, so the distance
would not matter. You can just hang the nuts, 1 on each side, in any
hole and it would be the same. But on the moon in this case, the side
with the 6 nuts would be heavier since more mass.
4: I learned that it takes more paper clips to balance a peep
than a empty film case.
5: Why is there no gravity on the moon?
lecture preflight 04
1: The mass of the pencil equals 6 pennies.
2: He should first weigh the penny or he could weigh all 6
pennies together and then divide that number by 6 to find the weight of
1 penny. After figuring out the weight of one penny, Isaac can multiply
that number by 6, which gives the weight of the pencil in grams.
3: I think it would remain the same. Being on the moon only
changes the weight but the mass still remains the same. Therefore, this
would not effect the balance since we are still using the same nuts and
the holes are also in the same position.
4: I thought it was interesting to see how you can weigh
something in terms of other objects like paperclips or washers instead
of using the set unit system. It made me think how before the scale or
the metric system was invented, the world worked in this manner.
5: Why is it so much brighter out during the day when there is
snow on the ground?
lecture preflight 04
1: He could explain that the mass of the pencil is equal to the
mass of 6 pennies.
2: Either Isaac could determine the mass of his pencil using a
measuring instrument that measures mass in grams, or he could find an
object of which he knows the mass and attempt to set the pencil and the
other object equal using the balance.
3: On the moon, this experiment would be different becuause our
balances measured weight and not mass. Weight will be significantly less
due to the gravity on the moon, but the mass will remain the same.
4: I learned the difference between mass and weight.
5: What causes a person to lose their voice?
lecture preflight 04
1: The mass of the pencil would be 6 pennies
2: First he would have to find the mass of one of the pennies and
then multiple that number by 6. You can find the mass by using a scale
or using paper clips or some other objects
3: I think that they would still balance on the moon. The onlyt
thing that is missing is the amount of gravity but even with the lower
gravity i dont see why they wouldnt balance. the mass would still be the
same as it is on earth.
4: the whole scale thing and how it teachers algebra!
5: how long does it take to get to the moon?
lecture preflight 04
1: Equal to the mass of 6 pennies.
2: Find out how many grams in a penny, and then multiply by 6.
3: The same thing because masses stay the same on the moon.
4: A paper clip weighs a gram.
5: Why does Champaign have such bad drainage?
lecture preflight 04
1: After looking up the mass of a penny, I found that a penny has
a mass of about 2 grams. Theis means the penciel would equal about 12
grams.
2: As we learned in lab, you should first find the mass of one
penny. Then create an accurate balance. Now you are ready to add as many
pennies into the balance that would equal, or level out, to the weight
pencil.
3: I think that although mass remains the same and weight
changes, on the moon, this experiment would have the same result. At
first, I would think the left side would be heavier because it has more
mass and more weight. However, in all rationality, even though the right
side still has less mass, the weight would decrease by the same
percentage as the left side.
4: A balance will be more accurate if the object supporting the
center is as small, or thin, as possible.
5: Why can you balance a hanger on your finger, when that isn't
the center of the hanger?
lecture preflight 04
1: the mass of a pencil would be six pennies or the mass of 1
penny times 6.
2: find the mass of one penny in grams then times it by six.
actually, it would probably be better to just weigh the pencil.
3: although the nuts would weigh less they would still the
balance would still be balance by hanging the nuts in this way. the
balance is not effected because the all of the nuts weights are
decreased by the same amount.
4: before this lab, i knew about torque but the balance really
helped me to conceptualize what torque actually was. it was cool how we
didnt realize thats what we were using until the very end.
5: how does gravity work? (this is my question every week and i
wil keep asking all semester until i know the answer)
lecture preflight 04
1: The mass of the pencil is equal to 6 pennies.
2: To figure out the mass of the pencil in grams you would first
need to measure the mass of one penny in grams. You then can multiply
the number of pennies it takes to equal a pencil which is 6 by the mass
of one penny. This will give you the mass of the pencil in grams.
3: I think that everything will weigh less on the moon because
the force of gravity is not as strong as it is on earth. Because weight
deals with gravity and how hard the force of gravity is acting on an
object, then the results for this lab will be different.
4: I learned an equation to find torque. This equation is torque
equals distance and force.
5: Why do we hiccup?
lecture preflight 04
1: The mass of the pencil would be 6 pennies.
2: He can weigh all of the 6 pennies or weigh one penny and
multiply by six to get the total mass in grams.
3: I think that the experiment would not work on the moon because
there is less gravity on the moon that there is here. Therefore, it
would make it really hard for us to measure and weigh objects on a
balance because we wouldn't be able to notice as much as we do here.
4: I never was exposed to the balancing experiment and how this
can relate to math with the hex nuts being moved to different holes in
order to balance them out. I thought that was interesting!
5: What makes snow white?
lecture preflight 04
1: Since we aren't given units, I think they would say that the
mass of the pencil is 6 pennies.
2: He would first have to weigh the six pennies on a scale. The
weight they find is the weight of one pencil in grams.
3: I think it would be equal; it should stay in equilibrium.
4: That even though a liquid can have the same volume, their mass
and density can be completely different.
5: Why does walking in the snow after it's been salted leave a
white line on your boot?
lecture preflight 04
1: 6 pennies
2: find out how much one penny is then multiply it by 6.
3: i could not even imagine, maybe they would move back and
forth!
4: The multiplying machine. it is just as cool as using your
fingers to know the times table for the number 9. :) pretty sweet
5: OK so i know this really is not a science type question, BUT i
think it is appropriate, "What do 90% of kids eat, but only 10% of
adults?" a. breakfast b. cheese c. jello *d.snow e.new foods
lecture preflight 04
1: The mass of the pencil is 6 pennies.
2: Albert and Isaac should measure the mass in grams of a penny
and then multiply this number by 6 in order to find the mass of the
pencil.
3: There is no gravity on the moon; thus, the nuts would not hang
from the balance. The nuts would float up from the balance.
4: I learned the difference between mass and weight.
5: How do computers work?
lecture preflight 04
1: They could say that the mass of one penny is equal to the mass
of six pennies.
2: First he would have to find the mass of one penny and then he
could apply that to the pencil.
3: The experiment would not work on the moon because there is no
gravity on the moon. Gravity is required in pulling down the masses
being measured.
4: I learned more about the basics of torque.
5: How does a lava lamp work?
lecture preflight 04
1: 6 pennies
2: The best way is to measure out ten pennies and divide the mass
by 10 (getting an average is always better than a single measurement).
Then take that number and multiply it by six to attain the mass of the
pencil in grams.
3: The balance should still be level on the moon because: a) mass
does not change when moving from the earth to space b) even if weight
does change when we move away from our source of gravity (the earth),
the change in weight would be the same for both objects.
4: I learned that you can use a balance to teach alegbra in a
hands on activity... which is great because I want to be a math teacher.
5: how does the moon cause tides?
lecture preflight 04
1: The mass of the the pencil is 6 times the mass of the pennies
in grams. I would guess a penny is about 3 grams, so the pencil would be
about 18 grams (as an estimate).
2: He would have to put the pennies in one cup and balance the
pennies with paper clips in the other cup. And the mass of six pennies
in grams will be equal to the weight of the pencil.
3: I believe the same thing would happen because the balance is
measuring mass and not weight. Their masses will not change.
4: Learning about the balance and how there was a direct relation
between the number on the balance and how many nuts to put on the
balance to maintain stability.
5: Why don't crackers and other certain items not get hot in the
microwave? :)
lecture preflight 04
1: The mass of the pencil is equal to the mass of six pennies. In
order to find the exact mass you would have to figure out the mass of
one penny and then multiply it by six to figure out the mass of the
pencil.
2: Isaac would first figure out how many grams are in a penny.
Once he found out the weight in grams of a penny he could multiply this
by six because the pencil is equal to six pennies.
3: If we did the exactly the same experiement on the moon I don't
think anything would change. Weight changes due to the amount of gravity
on the moon but it would have the same effect on all of the washers
because the washers have the same weight.
4: i really liked the algebra machine lab. I thought it was very
interesting to notice that you can add or multiply the numbers or a
combination of the two to balance the other side.
5: How does a thermos keep drinks hot?
lecture preflight 04
1: It is equal to the mass of 6 pennies.
2: He needs to fine out how much mass 1 penny has. So, put a
penny on a balance to find this out. Then, once you know how much mass a
penny has, put a pencil on the other end. See how many pennies it takes
to balance one pencil, then you have your answer.
3: I think that the balance would be less accurate, but I believe
it would come out to measure the same.
4: I learned that mass never changes.
5: What makes glue sticky?
lecture preflight 04
1: They would say that the mass of the pencil is 6 pennies.
2: Considering that a penny is about 2 grams, using the balance
scale, they could estimate the number of pennies it takes to balance the
pencil. If it is 6, that means the pencil is about 3 grams.
3: I know that a person's weight is 1/6 of what it is on earth,
but mass never changes even though the amount of gravity does.
Therefore, the nuts would have the same mass on earth or on the moon.
The scale would therefore be balanced.
4: We can estimate the weight of a bolt fairly accurately using a
homemade scale.
5: What causes the tides?