Heat Transfer

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main types of heat transfer?

Back

Conduction, convection, and radiation.

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

How does heat transfer occur in a solid object?

Back

Heat transfer in solids primarily occurs through conduction.

Front

How does heat transfer occur in fluids?

Back

Heat transfer in fluids occurs mainly through convection.

Front

What happens to molecules in hot substances?

Back

Molecules in hot substances move more quickly than those in cold substances.

Front

What happens to molecules in cold substances?

Back

Molecules in cold substances move more slowly than those in hot substances.

Front

In which direction does heat flow?

Back

Heat flows from an area of high temperature to an area of low temperature.