Physics Energy Review

Which best explains the relationship between the speed and energy of an object?

• As an object's speed increases, its energy increases.

• As an object's speed increases, its energy remains constant.

• As an object's speed increases, its energy decreases.

• As an object's speed decreases, its energy increases.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Cars A, B, C, and D are traveling at different speeds in four different lanes on the highway. Evaluate the data and select the list ordering cars with the MOST energy to the LEAST energy?

• A, D, C, B

• C, D, A, B

• A, D, C, B

• B, D, C, A

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Point B represents a distance half-way down the ramp. If the ball rolls down the ramp, how much potential energy has been converted to kinetic energy at point B?

• 0 J

• 25 J

• 50 J

• 100 J

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NGSS.MS-PS3-2

NGSS.MS-PS3-5

A pole vaulter runs forward, plants his pole, rises in the air and lands. What point represents his greatest amount of gravitational potential energy?

• when he intially lands

• as he runs forward to plant the pole

• just before he starts to fall to the ground

• after take-off as the pole expands and lifts the vaulter toward the bar

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NGSS.MS-PS3-2

Joshua's physics lab group has been assigned a project of designing a model bobsled track. Each group will roll a marble down the track with the objective of having their marble finish with the fastest time. Assume that the track is frictionless, and the length of all tracks is the same. They can use a small marble with a mass of 15g or a large marble with a mass of 20g. What should his team do to give their marble the most potential energy?

• They should use a large marble with the ramp at a 60° angle.

• They should use a large marble with the ramp at a 75° angle.

• They should use a small marble with the ramp at a 45° angle.

• They should use a small marble with the ramp at a 60° angle.

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NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS3-2

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

• mechanical to heat

• sound to mechanical

• kinetic to potential

• potential to kinetic

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NGSS.MS-PS3-2

NGSS.MS-PS3-5

At what point in the swing of the pendulum is the potential energy completely converted into kinetic energy?

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NGSS.MS-PS3-5

A box slides from the top of a ramp to the bottom, its maximum potential energy is located

• at the top

• at the bottom

• equal at all locations

• at the exact middle of the ramp

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NGSS.MS-PS3-2

Based on the diagram of a roller coaster track, what statement is true?

• A car at point A has the most kinetic energy.

• A car at point B has more kinetic energy than the car at point D.

• A car at point D has more kinetic energy than the car at point B.

• A car at point B has the most potential energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A person standing on the ground has less gravitational potential energy than a person in an airplane.

• True

• False

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NGSS.MS-PS3-2