Science TN Ready Review

Which is NOT an example of chemical potential energy?

• a hamburger on a plate

• a glow stick

• a battery in a package

• a light bulb in a lamp

Wire coils in the hair dryer become hot when in use. Which of the following best shows how the energy in a hair dryer is converted?

• electrical energy to mechanical, nuclear, and solar energies.

• mechanical energy to electrical, nuclear, and light energies.

• electrical energy to thermal, kinetic and sound energies.

• thermal energy to mechanical, electrical and light energies.

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NGSS.MS-PS3-5

A child is playing with a battery-operated toy car. The child closes the switch that operates the car. Which BEST describes the energy transformations that allow the car to move forward?

• thermal to electrical to chemical

• mechanical to chemical to sound

• electrical to chemical to sound

• chemical to electrical to mechanical

The table gives the kinetic and potential energy of a 6 kg cat doing various activities.During which activity does the cat have the greatest mechanical energy?

• running

• sleeping on a chair

• climbing a tree

• leaping

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NGSS.MS-PS3-1

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You are swinging on a swing. Complete the chart below to make it correct.

• 55 J

• 70 J

• 25 J

• 50 J

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NGSS.MS-PS3-5

Which energy transformation occurs in a rubber band powered model airplane when it is flown?

• Potential energy stored in the rubber band transforms into kinetic energy used by the propeller.

• Chemical energy stored in the rubber band transforms into potential energy used by the propeller.

• Kinetic energy stored in the rubber band transforms into thermal energy used by the propeller.

• Thermal energy stored in the rubber band transforms into chemical energy used by the propeller.

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NGSS.MS-PS3-1

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After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explain this?

• Law of Potential Energy

• Law of Conservation of Energy

• Law of Power and Energy

• The Law of Energy Changes

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Spring 1 and Spring 2 were in the same position. Then, Spring 1 was pushed together a little and clamped into place. Spring 2 was pushed together a lot and then clamped. What type of energy do the clamped springs have?

• Electric Potential

• Elastic Potential

• Chemical Potential

• Gravitational Potential

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NGSS.MS-PS3-2

Look at the picture above. At which point does the snowboarder have the greatest amount of potential energy?

• 1

• 2

• 3

• 4

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NGSS.MS-PS3-2

Why does the snowboarder have the greatest amount of potential energy at location 1?

• He has more speed in this location.

• He is at the lowest point in this location.

• He is heavier at this point.

• He is at the highest point in this location.

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