Heat Transfer: Conduction, Convection, & Radiation

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

The three main types of heat transfer are conduction, convection, and radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

Define convection.

Back

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

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, related to its temperature.

Front

How does heat transfer occur between two objects in contact?

Back

Heat transfer occurs from the hotter object to the cooler object until thermal equilibrium is reached.

Front

What happens to thermal energy when ice is held in a warm hand?

Back

Thermal energy is transferred from the hand to the ice cube, causing the ice to melt.

Front

What is an example of convection in everyday life?

Back

An example of convection is the way warm air rises and cool air sinks in a room, creating a circulation of air.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot after being placed in a pot of boiling water.