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

Define conduction.

Back

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

Front

Define convection.

Back

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

Front

Define radiation.

Back

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

Front

What happens to hot water when it is placed in a cooler environment?

Back

The heat from the hot water transfers to the cooler environment until thermal equilibrium is reached.

Front

How does convection work in a pot of boiling water?

Back

Hot water rises to the top while cooler water sinks, creating a circular motion that distributes heat.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects reach the same temperature and no heat transfer occurs between them.

Front

What is an example of conduction in everyday life?

Back

Walking on warm sand with bare feet is an example of conduction.

Front

What is an example of convection in nature?

Back

Ocean currents are an example of convection, where warm water rises and cool water sinks.