Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object due to their motion. It is related to temperature and heat.

Front

What are the three types of heat transfer?

Back

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

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when particles collide with each other.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warmer fluid rises while cooler fluid sinks.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight. It does not require a medium to travel.

Front

What happens to temperatures when two areas with different temperatures are connected?

Back

Heat will flow from the warmer area to the cooler area until they reach thermal equilibrium.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, helping to keep heat in or out of an object.

Front

What is a conductor?

Back

A conductor is a material that allows heat to pass through it easily, such as metals.

Front

How does temperature affect thermal energy?

Back

As temperature increases, the thermal energy of an object also increases because the particles move faster.

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.