Science CFA # 3: Form of Energy, Conductors & Insulators

When you sharpen your pencil, you are using what type of energy?

• A. sound

• B. light

• C. thermal

• D. mechanical

what form of energy operates the refrigerator?

• A. electrical

• B. mechanical

• C. sound

• D. thermal

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What source of energy does the Sun provide?

• A. sound

• B. light and heat

• C. mechanical

• D. solids and liquids

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what type of energy causes ice cream to melt?

• A. thermal

• B. light

• C. sound

• D. mechanical

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Is this a heat, light, or sound source?

• A. heat

• B. light

• C. sound

• D. electrical

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A handle on a frying pan is often coated in rubber because rubber provides...

• A. heat insulation

• B. a low melting point

• C. heat conductivity

• D. a nonstick surface

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Why are metals useful in making electrical wires?

• A. metals do not bend

• B. metals are insulators

• C. metals hold much heat

• D. metals are conductors

Which of the following is an example of an insulator?

• A. wooden block

• B. penny

• C. nail

• D. paper clip

What is energy?

• A. heat

• B. light

• C. the ability to do work

• D. gas

What is an insulator?

• A. a materials that stops the flow of heat and electrical energy.

• B. a material that allows the flow of heat and electricity.

• C. material made of metals such as copper, steel and iron.

• D. materials that allow sound waves to travel through the air.

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