Thermal Energy Test Review

Front

What is thermal energy?

Back

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

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is radiation?

Back

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

Front

Which has more heat: a bathtub or a cup of coffee at the same temperature?

Back

A bathtub has more heat because it contains more water and thus more thermal energy.

Front

How does heat transfer occur in a teapot on a stove?

Back

Heat transfer in a teapot on a stove occurs through conduction, as the heat from the stove directly contacts the teapot.

Front

What is the primary method of heat transfer when warming your hands over a fire?

Back

The primary method of heat transfer when warming your hands over a fire is radiation.

Front

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

Back

When a substance is heated, its particles move faster and spread apart, increasing its thermal energy.

Front

What is the difference between heat and temperature?

Back

Heat is the total energy of molecular motion in a substance, while temperature is a measure of the average energy of that motion.

Front

What is an example of convection in everyday life?

Back

An example of convection is the way warm air rises and cool air sinks in a room, creating a circulation of air.