Sci. 6.4 c-d Review

Front

How does Earth receive energy from the sun?

Back

Earth receives energy from the sun through radiation.

Front

What is convection?

Back

Convection is the heat transfer through currents in fluids (liquids and gases).

Front

What type of energy conversion occurs when a fan spins?

Back

The energy conversion is from electrical to mechanical.

Front

What is the process of water boiling in a pot?

Back

The process is convection, where heat is transferred through the movement of water.

Front

What type of energy conversion occurs when burning coal?

Back

The energy conversion is from chemical to thermal.

Front

Define radiation in the context of energy transfer.

Back

Radiation is the transfer of energy through space without the need for a medium.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Give an example of conduction.

Back

An example of conduction is touching a hot stove and feeling the heat.

Front

What is an example of convection in everyday life?

Back

An example of convection is warm air rising and cool air sinking in a room.

Front

Explain the difference between conduction and convection.

Back

Conduction is heat transfer through direct contact, while convection involves the movement of fluids.