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Wednesday, April 20, 2011

Know and Want know- Forces and Motion

Know

Force/Motion

What I know about force is it is something that is putting against something else. For an example in the video that we watched, the balloon that hit the time warp guys face it put so much force on it that it burst. Force can also be put in a different way. For an example, if you have a plate with 4 strings attached to it on for sides, and stick all of those together so you can hold all of them. So, if you spin it around you, you can see that it is puling towards you. You can identify that by putting a glass of water in the middle of the plate. Now, when you spin it, the water doesn’t spill because the plate, not the glass, is getting pulled towards you and therefore it doesn’t spill.

What I want to know

· How much force does it take to brake a baseball?

· How/Why do we use Newton’s 3rd law in forces and motion?

· Why do we use Newton’s law in forces and motion?

· Why does a basketball burst when it is put under a lot of pressure?

· Why does a bullet slow down when it goes through a lot of cans of soda?

· Why doesn’t it just burst rite through all of them?

· When do forces come in handy?

· When does motion come in handy?

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