Potential and Kinetic Energy Transformation

Which graph BEST shows the relationship of kinetic energy to potential energy as a book sits on the edge of a desk?

• A

• B

• C

• D

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NGSS.MS-PS3-1

Which graph BEST shows the relationship of kinetic energy (solid line) to potential energy (dotted line) as a hawk dives downward toward its prey and then returns to its original position in the air?

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NGSS.MS-PS3-1

This graph MOST LIKELY describes the potential energy and kinetic energy of a roller coaster going

• up a hill.

• up a hill and then rolling back down the other side.

• down a hill.

• down a hill and then rolling back up the other side.

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NGSS.MS-PS3-1

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According to the graph, which of the these remains constant throughout?

• Time

• potential energy

• kinetic energy

• total amount of energy

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NGSS.MS-PS3-1

Instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp directly to the ground. What is the amount of potential energy remaining after the ball lands on the ground?

• 100J

• 0J

• 25J

• 50J

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NGSS.MS-PS3-2

Which point on the pendulum's swing represents the minimum potential energy?

• A

• B

• C

• D

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NGSS.MS-PS3-2

According to the picture, how would the gravitational potential energy of the car change if its weight was doubled?

• The gravitational potential energy would be cut in half.

• The gravitational potential energy would stay the same

• The gravitational potential energy would be doubled.

• The gravitational potential energy would be increased by 750.

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At what point on the hill will the car have zero gravitational potential energy?

• At the bottom of the hill.

• At the top of the hill.

• Half-way down the hill.

• It will never have zero gravitational potential energy

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A ball is projected into the air. Describe the change(s) in potential and kinetic energy.

• Potential energy decreases and kinetic energy increases.

• Kinetic energy increases and potential energy decreases.

• Potential energy decreases while kinetic energy increases; then kinetic energy decreases and potential energy increases.

• Kinetic energy decreases as potential energy increases; once at the top, potential energy decreases as kinetic energy increases.

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How would you describe the relationship between the mass of a car and its kinetic energy?

• As the mass of a car increases, its kinetic energy decreases.

• As the mass of a car increases, its kinetic energy increases.

• As the mass of a car decreases, its kinetic energy increases.

• There is no clear relationship between mass and kinetic energy.

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