Thermal Energy Post Assessment

Front

What is thermal energy?

Back

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

Front

What are the three methods of heat transfer?

Back

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

Front

Define conduction in the context of thermal energy transfer.

Back

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

Front

What is an example of conduction?

Back

An example of conduction is heat moving from a clothes iron to a shirt.

Front

What is required for conduction to occur between two objects?

Back

Both objects must be in physical contact with each other.

Front

How does heat transfer by radiation occur?

Back

Heat transfer by radiation occurs through electromagnetic waves and does not require a medium.

Front

What is 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

In which direction does heat flow during conduction?

Back

Heat flows from a warmer object to a cooler object.

Front

What is an example of thermal energy transfer by radiation?

Back

An example of thermal energy transfer by radiation is feeling the warmth of the sun on your skin.

Front

What happens to the particles in a substance when it is heated?

Back

When a substance is heated, its particles gain kinetic energy and move faster.