Forces & Energy Quiz Review

At which point is potential energy greatest?

• W
• X
• Y
• Z

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NGSS.MS-PS3-2

When the pendulum swings from 1 to 3, what happens to the amount of kinetic and potential energy?

• Both the potential and kinetic energies increase

• The kinetic energy increases and the potential energy decreases

• Both the potential and kinetic energies decrease

• The potential energy increases and the kinetic energy decreases

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Which point has the most potential energy?

• G
• f
• b
• a

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Which location has the most kinetic energy?

• X

• W

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How much potential energy is at the top of a hill on a rollar coaster ride

• 100%
• 50%
• 0%
• 20%

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As the coaster continues along the track and comes to a stop at the end of the ride, the potential and kinetic energy eventually decrease until the only remaining energy is thermal energy. Why?

• The kinetic and potential energy are destroyed

• The force of friction (from the rollercoaster brakes and friction between the track and the coaster) transforms the PE and KE to thermal energy)

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When a roller coaster is at the top of a hill it has

• high potential energy

• high kinetic energy

• low potential energy

• equal amounts of kinetic and potential energy

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The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

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NGSS.MS-PS3-1

True/False: Because energy cannot be created or destroyed, when an object’s kinetic energy increases, its potential energy must decrease!

• True

• False

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As mass increases, KE ...

• increases
• decreases
• stays the same

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