Energy Types and Transformations

What is energy?

• The ability to do work.

• A type of light.

• A type of sound.

• A type of heat.

What do we call the energy that is heat?

• Light energy

• Sound energy

• Thermal energy

• Electrical energy

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What kind of energy is found in food, batteries, and fuels?

• Electrical energy

• Chemical energy

• Mechanical energy

• Light energy

What is kinetic energy?

• Energy stored in an object.

• Energy of objects currently in motion.

• Energy from heat.

• Energy from light.

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What is potential energy?

• Energy of motion.

• Energy stored in an object that can move or change.

• Energy from heat.

• Energy from light.

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What happens to a roller coaster's energy as it goes down a hill?

• Its kinetic energy changes to potential energy.

• Its potential energy changes to kinetic energy.

• Its mechanical energy changes to heat.

• Its electrical energy changes to mechanical energy.

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What happens to some of the roller coaster's mechanical energy because of friction?

• It changes into electrical energy.

• It changes into potential energy.

• It changes into heat and sound.

• It changes into light.

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Why does a roller coaster need electrical energy?

• To make loud sounds.

• To create heat.

• To convert it into mechanical energy to keep moving.

• To make it stop.