Mass and Weight
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- Science Video
- Earth Science
- misconceptions
- moon
- planets
- solar system
- inertia
- Physical Science
- gravity
- matter
- IPad
- FL-SC.1.E.5.2
- FL-SC.2.P.13.3
- FL-SC.2.P.8.1
- FL-SC.3.E.5.4
- FL-SC.3.P.10.2
- FL-SC.3.P.8.2
- FL-SC.3.P.8.3
- FL-SC.4.P.8.1
- FL-SC.4.P.8.3
- FL-SC.5.E.5.3
- FL-SC.5.P.13.3
- FL-SC.5.P.8.1
- FL-SC.8.E.5.7
- FL-SC.8.P.8.2
Gravity wells
On a totally related note:
http://xkcd.com/681_large/
The idea that you could escape the surface gravity of some of the solar system's moons with a bicycle and a ramp is actually a stunning thought.
Marvelous link! A very
Marvelous link! A very different way of looking at the solar system. Thanks!
The bucket in space stayed
The bucket in space stayed on the scale. Ha! That would never happen in space. It's to weightless in space. And when you threw the bucket, it crashed. It would have floated away! You've got to be a little more accurate. Please don't email me, just put a reply on here.
Although science fiction
Although science fiction movies make it seem that some force causes objects in space to float randomly around, Newton's Laws of Motion apply in space the same as they do here on Earth. An object at rest (bucket on scale) will remain in place until something pushes or pulls on it to make it move. An object in motion (thrown bucket) will continue to travel in the same direction, at the same speed, until something pushes or pulls on it to change that. If I had actually been in space, the bucket would have remained in place, even without the scale. You can see that happening with object in the NASA videos from the space station.
Mr. Krampf is right, he knows
Mr. Krampf is right, he knows what he is talking about. he wouldn't make a video on an experiment if he didn't know how it worked besides.
I did have a question for you Mr. Krampf. How can the Hubble Telescope see so far? I mean if it would take thousands of light years for us to get to a star system in another galaxy, how can Hubble see far enough to take pictures of it??
I mean is it just a really really strong telescope?
Yes, the Hubble telescope is
Yes, the Hubble telescope is a very powerful telescope, but also, by being above the atmosphere, it can take photos that are much sharper. That lets us see details that we could never see from Earth.
Wow
that's neat!
RE: hubble question
I think that since it is such a huge telescope, it's lenses are large enough to see into deep space. That is my guess anyways.
-Leah
you know, even if you did
you know, even if you did mutate in space you would die because of pressure, and that would not be very good!
CA Science Standard
What is the CA Science Standard for this??
" in space there is also
" in space there is also radiation, witch can cause mutation."
I love it, i saw the radioactive one,so funny.
YOU DO AWSOME VIDEOS KRAMPF!!!!!!!!!!!!!
CHEMISTRY
Why is it important that scientist measure mass and not weight
can you make more of your
can you make more of your videos free?
Because weight is only
Because weight is only relevant to gravity, mass stays the same.
Weight changes as the gravity
Weight changes as the gravity on different planets changes, but mass will always be the same
Gravity
Weight is mass with the pull of Gravity - E. G. Weight on Eart compared to Weight on Moon Q.E.D
Mass versus weight
Mass versus weight is an extremely difficult concept to teach to fourth grade students. Your presentation made it very easy to understand and apply. Thank you for making complex topics fun and manageable for the average science learner. It is also very helpful to the educator!! Thanks again!
Why does scientist measure
Why does scientist measure mass and not weight?
that is kool!!!!!
that is kool!!!!!
Fantastic! Thank you for all
Fantastic! Thank you for all the effort that you go to in producing these free videos.
wow
this is one of ur best videos!!! u rock :)
Units of Mass vs. Weight
Nice video, but I think there are a couple of problems. I think it would be better to use force units for weight and mass units for mass. That is, newtons for weight and kilograms for mass. Also, I imagine that the balance you showed actually measures mass and not weight. I think it would be better to compare a spring scale (force measuring device) with a two-pan balance (which clearly shows a comparison of one mass with another).
Good point. I considered
Good point. I considered using newtons, but these videos are mostly targeted towards elementary and middle school students, and their curriculum does not address newtons. The scale is in the video actually a spring scale, not a balance, but like many scales, it is calibrated in grams and kilograms, not newtons. Explaining why the scales was calibrated to the wrong units would have meant going off on a tangent to the main point.
I hear what you're saying
I understand the desire to stay on track, and overall I like what you've done. In the high school physics and chemistry classes I teach, though, I hammer the kids on units and dimensional analysis. It's possibly the most generally useful skill I've learned in science.
I have some spring scales that are calibrated in grams and they drive me nuts every time I use them. I inherited them, or I would not be using them. "When *I* buy my spring scales, they will be calibrated in the correct units!," he said forcefully.
Thanks for the free video. All the best to you.
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