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 methods 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 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 temperature affect density?

Back

As an object is heated, its density decreases because the particles move apart.

Front

Why does warm air rise?

Back

Warm air is less dense than cold air, causing it to rise and create convection currents.

Front

What happens to the density of water as it warms up?

Back

The density of water decreases as it warms up.

Front

Which liquid is less dense: oil or water?

Back

Oil is less dense than water.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the kinetic energy of the particles in a substance also increases.