Unit 4 Review

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

Front

Give an example of conduction.

Back

An ice cube melting in a person’s hand is an example of conduction.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink.

Front

Give an example of convection.

Back

The circulation of warm and cool air in a house is an example of convection.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves. It does not require a medium to travel through.

Front

Give an example of radiation.

Back

The sun heating water in a swimming pool is an example of radiation.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating objects and transmitted through a medium (like air, water, or solids) as sound waves.

Front

Give an example of sound energy.

Back

Plucking a guitar string produces sound energy.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of energy transformation?

Back

When a battery powers a flashlight, chemical energy is transformed into light energy.