4.2 Force, Motion & Energy

All moving objects have ----

• electrical force
• kinetic energy 
• potential energy
• frictional force 

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A moving roller coaster is an example of ---

• potential energy 
• friction
• fusion 
• kinetic energy

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Which is not an example of kinetic energy? 

• A man standing on the porch about to step off. 
• A girl riding a bike
• A boy doing a cartwheel
• A football player throwing 

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Which section of the track is friction most likely to cause the greatest resistance to the motion of the toy sled?

• 1
• 2
• 3
• 4

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A bicyclist rides on a flat road and then stops pedaling but does not apply the brakes. The bicycle stops because of ....

• magnetism
• balance
• attraction
• friction 

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If you roll a ball on the ground what will cause it to slow down? 

• Friction from the ground
• The motion of the ball
• A magnetic field 
• The speed of the ball 

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If you throw a ball you are demonstrating 

• light energy
• kinetic energy
• potential energy
• transferring sound to energy 

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NGSS.MS-PS3-1

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In which direction will the ball most likely go after it hits the wall? 

• A
• B
• C
• D

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A person pushes a box as shown. What is the push most likely to change? 

• The color
• the size
• the mass
• the position of the box 

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Useful friction is created by ....

• brakes
• gears
• spokes
• curved