Energy Unit Review 2024

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). For example, boiling water moves in a circular motion to transmit heat.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, feeling heat from a stove burner when you touch it.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. For example, feeling heat from a stove burner without touching it.

Front

What is a renewable resource?

Back

A renewable resource is a natural resource that can be replenished naturally over time, such as trees, wind, and solar energy.

Front

What is a non-renewable resource?

Back

A non-renewable resource is a natural resource that cannot be replenished in a short period of time, such as uranium (nuclear energy).

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field. It is highest when the object is at its highest point.

Front

At which point does a ball have the most gravitational potential energy when thrown into the air?

Back

The ball has the most gravitational potential energy at the highest point of its trajectory.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

Can you give an example of conduction?

Back

An example of conduction is touching a hot metal spoon in a pot of boiling water.

Front

Can you give an example of convection?

Back

An example of convection is warm air rising and cool air sinking, creating a circular motion.