#1 Check-In- Transfer & Transformation of Energy

What is the law of conservation of energy?

• Energy can be created and destroyed.

• Energy is always in the form of heat.

• Energy can be transferred and transformed but not created or destroyed.

• Energy can only be transferred, not transformed.

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NGSS.MS-PS3-5

Which of the following is an example of energy transfer?

• A flashlight converting chemical energy to light.

• A golf club hitting a golf ball.

• A plant using sunlight to make sugar.

• A ball rolling down a hill.

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NGSS.MS-PS3-4

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What happens to the potential energy of a ball as it rolls down a hill?

• It transforms into thermal energy.

• It remains constant.

• It transforms into kinetic energy.

• It increases.

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How does thermal energy transfer occur between two objects?

• From a hotter object to a cooler object.

• Only through direct contact.

• Only in the form of light.

• From a cooler object to a hotter object.

What is the role of friction in energy transformation?

• It creates energy.

• It transforms kinetic energy into potential energy.

• It transforms kinetic energy into thermal energy.

• It prevents energy transformation.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which energy transformation occurs during photosynthesis?

• Chemical energy to thermal energy.

• Radiant energy to chemical energy.

• Mechanical energy to electrical energy.

• Thermal energy to mechanical energy.

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What type of energy is involved when wind moves sand on a beach?

• Chemical energy

• Electrical energy

• Kinetic energy

• Nuclear energy

In a flashlight, what is the initial form of energy?

• Chemical energy

• Mechanical energy

• Thermal energy

• Radiant energy

What energy transformation occurs in a gasoline engine?

• Radiant energy to thermal energy

• Thermal energy to chemical energy

• Mechanical energy to electrical energy

• Chemical energy to mechanical energy

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NGSS.HS-PS3-3

How does a wind-powered electric generator work?

• It converts mechanical energy into electrical energy.

• It converts chemical energy into electrical energy.

• It converts radiant energy into chemical energy.

• It converts thermal energy into mechanical energy.