Thermal Energy and Heat Transfer

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance. It is related to the temperature of the substance and the number of particles.

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 methods of heat transfer?

Back

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

Front

Define conduction.

Back

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

Front

Define convection.

Back

Convection is the transfer of heat through fluids (liquids and gases) by the movement of the fluid itself, often seen in boiling water.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight warming the Earth.

Front

What is the role of insulators in heat transfer?

Back

Insulators are materials that slow down the transfer of heat, helping to keep heat in or out of an object.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

How does temperature affect thermal energy?

Back

As the temperature of a substance increases, its thermal energy also increases because the particles move faster.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.