Science Quarterly Assessment #2

Front

What are sound waves?

Back

Sound waves are vibrations that travel through the air (or another medium) and can be heard when they reach a person's ear.

Front

What happens to energy when a ball bounces?

Back

The energy is transferred back to the ball, allowing it to bounce back up.

Front

What is a poor conductor of electricity?

Back

Plastic is a poor conductor of electricity.

Front

Why is copper used in electrical circuits?

Back

Copper is used in electrical circuits because it is a good conductor of electricity.

Front

What happens to daylight in the Northern Hemisphere when it leans toward the sun?

Back

Daylight is longer when the Northern Hemisphere leans toward the sun.

Front

Define energy transfer.

Back

Energy transfer is the process of energy moving from one object or system to another.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily.

Front

Give an example of a good conductor of electricity.

Back

Silver is an example of a good conductor of electricity.

Front

What is the role of sound waves in communication?

Back

Sound waves carry our voice to others, allowing us to communicate.