Energy Review

Front

What direction does a tree's shadow stretch when the sun is in the western sky?

Back

East

Front

Why does a violin have a higher pitch than a cello?

Back

The cello has longer, thicker strings.

Front

What does a white shirt do with colors of light?

Back

The shirt reflects all colors of light.

Front

Why is plastic used as a covering for wires?

Back

Plastic is an insulator.

Front

What type of energy changes as a girl climbs a snowy hill with a sled?

Back

Chemical energy from food changes to kinetic energy.

Front

What type of energy does a girl have at the top of a hill before sliding down?

Back

Potential energy.

Front

What happens to potential energy when the girl slides down the hill?

Back

It changes to kinetic energy.

Front

What is the relationship between potential energy and kinetic energy in this scenario?

Back

Potential energy converts to kinetic energy as the girl descends.

Front

What is the definition of insulator in the context of materials?

Back

An insulator is a material that does not conduct electricity.

Front

How does the length of a string affect the pitch of a musical instrument?

Back

Longer strings produce lower pitches, while shorter strings produce higher pitches.