Types and Uses of Energy

On a waterwheel, the water falls and causes the wheel to turn. What form of energy is being used to turn the wheel?

• electrical energy

• mechanical energy

• thermal energy

• sound energy

Which two forms of energy are most commonly used to cook food in an oven?

• light energy

• electrical energy

• thermal energy

• sound energy

Which of the following statement is an example of sound energy that has electrical energy as its source?

• girls playing the flute

• a boy clapping

• a dog barking

• speakers at a football game

Which object only requires mechanical energy to perform its main function?

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Which object requires only mechanical AND electrical energy to perform its main function?

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Which object requires only mechanical energy to perform its main function?

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A family decorated a tree for the holidays. They strung lights on it and plugged it in. Many colorful lights began to glow. What types of energy are being used or produced by the decorated tree?

• heat and sound

• light and thermal

• electrical and light

• light and mechanical

A boy rented a saxophone so that he could practice before trying out for the school band. Which forms of energy are used when the boy plays the saxophone?

• thermal and sound

• mechanical and electrical

• light and thermal

• sound and mechanical

What type of energy does a spinning windmill have?

• Mechanical

• Chemical

• Light

What energy flows in current?

• Mechanical

• Electric

• Chemical