Force and Motion
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| We throw a paper airplane outside. The wind pushes back on it with 5N. Will the force of the wind decrease or increase the acceleration of the plane? | Decrease acceleration of plane.
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| A push or pull is called? | force
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| Speed is figured by... | Distance divided by time.
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| What is speed? 50 miles in 2 hours? | 25 mph
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| Ball won't move until you kick it!! What law? | Newton's First Law
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| The impact or force of an object depends on its acceleration and the mass of it!! What law? | Newton's Second Law
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| The larger the mass, the more | force is needed to push or pull it.
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| If you want something to have a greater acceleration, usually the easiest thing to do is to change the ..... | size of the object, decrease the mass or increase force.
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| Two cars traveling down roads, and Car A is slower. Car A's road probably has a road with more or less friction? | Car A which is slower has most friction, slowing car down.
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| What force pulls objects down to earth? | gravity
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| The larger the mass the stronger the pull of | pull of gravity.
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| Newton's third law? For every action, there is an equal.... | and opposite reaction.
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| Point A is at top of inclined plane and B at the bottom of hill. Which will show greatest speed and greatest kinetic energy? | Point at bottom, top speed.
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| John ran a 9 mile race in 4 hours. What was his average speed? Use the formula AND A CALCULATOR. | 2.25 miles per hour. Distance divided by time.
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| Point A at top of hill, and Point B at bottom of hill. Which points shows least kinetic energy? | Point A as it has potential
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| Car stops, you go forward. This shows __________. | inertia or Newton's first law
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| A ball on top of a hill or a ball speeding down a hill....which would show the most kinetic energy? | Ball speeding down a hill.
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| When your parent stops really fast in the car, you go forward. What law does this illustrate? | Newton's first law which is inertia.
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| Newton's Second Law is illustrated when it takes more force to move an object with less or more mass? | It takes more force to move an object with more mass
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| Carpet or smooth metal. Which has most friction? | carpet
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| Amount of matter in an object is its | mass
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| A heavy boy on end of a see saw and a lighter boy on the other end would be an example of what type of force? | unbalanced
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