Thermal Energy Review

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

Front

What are the three types of thermal energy transfer?

Back

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

Front

Define conduction.

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

Define convection.

Back

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

Front

Define radiation.

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as light, without the need for a medium.

Front

What is an example of conduction?

Back

Touching a hot pan is an example of conduction.

Front

What is an example of convection?

Back

In a large house, the attic is usually warm and the basement is usually cold due to convection.

Front

What is an example of radiation?

Back

The heat from the sun reaching the Earth is an example of radiation.

Front

What is necessary for conduction to occur?

Back

Both objects must be in physical contact with each other.

Front

How does convection work in a fluid?

Back

In convection, warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.