Mechanical Energy Quiz

The diagram shows a child on a swing. The child swings back and forth between points X and Z, passing through point Y. Points X and Z are at the same height. Which of the following statements best describes the kinetic energy and gravitational potential energy of the child?

• The child has no potential energy or kinetic energy at position X and at position Y.

• The child has the same kinetic energy and potential energy at position X and at position Y.

• The child has more potential energy and less kinetic energy at position X than at position Y.

• The child has more kinetic energy and less potential energy at position X than at position Y.

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What is the best example of something having kinetic energy?

• a. a car parked on a steep hill 

• b. a tennis ball rolling across the court

• c. a picture hanging on the wall 

• d. a piece of coal before being burned 

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When a pendulum swings, at which point is the kinetic energy greatest?

• 1

• 2

• 3

• 4

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Which point has the greatest potential energy?

• G

• f

• b

• a

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Which 2 letters have the most kinetic energy?

• W & Y

• X & Z

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How much potential energy is there at the top of a hill on a roller coaster ride?

• 100%

• 50%

• 0%

• 20%

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At which point is the potential energy greatest?

• W

• X

• Y

• Z

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What happens to its kinetic and potential energy when a pendulum swings from its highest to its lowest position? 

• Both potential energy and kinetic energy decrease

• Potential energy decreases while kinetic energy increases 

• Kinetic energy decreases while potential energy increases 

• Both potential energy and kinetic energy increase 

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An elastic band has been pulled back but has not yet been released.

• Potential

• Kinetic

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The energy due to motion is ____________ energy. 

• Potential 

• Energy

• Kinetic

• Friction

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