Energy Transformations

When a lion eats a zebra, and then uses the energy to run, the lion's body converts -

• mechanical energy -> chemical energy

• chemical energy -> light energy

• electrical energy -> chemical energy

• chemical energy -> mechanical energy

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NGSS.MS-LS1-7

The television's remote control contains 2 AAA batteries. What type of energy is held inside the batteries?

• mechanical energy

• radiant energy

• chemical energy

• radiant energy

The law of conservation of energy states -

• energy is totally lost

• more energy is produced than can be used

• energy changes to matter like chemicals

• energy is never created or destroyed, it merely changes form

Tags

NGSS.MS-PS3-5

A group of campers create a campfire by burning several wooden logs. Which statement best describes the energy transformations that occur when the logs burn?

• Chemical energy from the wood is converted into light and heat energy.

• Heat energy from the logs is converted into chemical and light energy.

• Chemical energy from the air is converted into mechanical and light energy.

• Heat energy from the air is converted into mechanical and light energy.

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NGSS.MS-PS1-2

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical to mechanical to electrical to radiant

• radiant to electrical to sound

• chemical to radiant to mechanical to electrical

• electric to radiant to chemical

Tags

NGSS.MS-PS3-5

Johanna took her little brother to the playground because he likes to swing. Look at the diagram that shows Johanna pushing her brother on the swing. Which statement is true about the transformation between kinetic and potential energy while the boy swings?

• Kinetic energy changes to potential energy between points A and B.

• Potential energy changes to kinetic energy between points A and B.

• Potential energy changes to kinetic energy between points B and C.

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NGSS.MS-PS3-1

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NGSS.MS-PS3-5

The law of conservation of energy is a law of science that states that energy cannot be ____________________ , but only changed from one form into another or transferred from one object to another.

• created or destroyed

• ignited or made

• squished or sat on

• turned into marshmallows

The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only ________________ from one form into another or transferred from one object to another.

• changed

• square

• triangle

• frog

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NGSS.MS-PS3-3

NGSS.MS-PS3-4

Marco lives near Miami, Florida. His home receives electricity from the Turkey Point power plant, which uses nuclear energy to provide electricity to homes and businesses. What is used to provide energy in a nuclear power plant?

• chemical reactions

• nuclear fission reactions

• digestion of compostable materials

• physical changes

Mr. Martin drove to the nursery to buy plants for his garden. The chemical energy contained in ____________ changed into energy to run the truck.

• fuel

• photosynthesis

• the battery

• body cells

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NGSS.MS-PS3-4

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