Energy Transfers & Transformation

The graphic shows a cliff with a boulder resting on it. Which description best matches the picture?

• The rock in its current state is an example of kinetic energy.

• The rock in its current state is an example of potential energy.

• The rock will exhibit potential energy if it begins to roll down the cliff.

• The rock will exhibit kinetic energy if it remains resting in the same position.

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NGSS.MS-PS3-2

NGSS.MS-PS3-5

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Assume there is no friction between the ball and the ramp. Which statement describes the ball’s mechanical energy as it moves down the ramp?

• The mechanical energy increases.

• The mechanical energy decreases.

• The mechanical energy remains the same.

• Not enough information is given to determine the ball’s mechanical energy.

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Which kind of energy is most often used when operating simple machines?

• light energy

• sound energy

• kinetic energy

• mechanical energy

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Which best describes a ball rolling down a ramp in relation to energy and change of energy?

• The ball begins with stored potential energy which changes to kinetic as the ball begins rolling.

• The ball begins with stored kinetic energy which changes to potential as the ball begins rolling.

• The ball begins with stored chemical energy and changes to gravitational as it begins rolling.

• The ball begins with stored gravitational energy and changes to chemical as it begins rolling.

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When a light is turned on, which change takes place?

• Electrical energy moves from potential to kinetic.

• Electrical energy moves from kinetic to potential.

• Magnetic energy moves from potential to kinetic.

• Magnetic energy moves from kinetic to potential.

Which object has kinetic energy?

• a rock resting on a cliff

• a car parked in a driveway

• a barrel drifting down a waterfall

• a house positioned on a mountainside

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Between what two locations does the car’s kinetic energy transform into potential energy?

• W and X

• W and Y

• X and Y

• Y and Z

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What kind of energy is seen in the picture of a ball on a hill?

• Mechanical

• Potential

• Kinetic

• Heat

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NGSS.MS-PS3-2

At which two positions do the cars have the greatest potential energy?

• R and S

• S and T

• T and U

• U and V

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NGSS.MS-PS3-2

Which two positions represent the most potential energy for the roller coaster car?

• W and Z

• W and X

• X and Z

• Y and Z

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NGSS.MS-PS3-2