Convection, conduction, radiation

Front

Warm air is __________ dense than cold air and rises creating convection currents.

Back

less

Front

Thermal ______ happens when particle motion decreases and cause the particles to occupy less volume.

Back

Contraction

Front

What energy transformation is occurring in letter (A) of this picture?

Back

radiation

Front

Water boiling in a kettle is an example of __________.

Back

Convection

Front

A hot air balloon rises into the sky because of __________.

Back

Convection

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids and gases).

Front

What is radiation?

Back

The transfer of heat in the form of electromagnetic waves.

Front

In which process does warm air rise and cool air sink?

Back

Convection

Front

What happens to the density of air as it is heated?

Back

It becomes less dense.