Review Thermal Energy

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 is convection?

Back

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

Front

What happens to hot gases or liquids in convection?

Back

Hot gases or liquids rise because they are less dense than cooler gases or liquids.

Front

What happens to cold gases or liquids in convection?

Back

Cold gases or liquids sink because they are denser than hot gases or liquids.

Front

What is a graduated cylinder used for?

Back

A graduated cylinder is used to measure the volume of a liquid.

Front

What occurs to air molecules when the temperature drops below 0ºC?

Back

The molecules decrease in speed as the temperature drops.

Front

What type of heat transfer occurs in the Earth's mantle?

Back

Convection occurs in the Earth's mantle with magma.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state, such as a compressed spring.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

What is conduction?

Back

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