Heat Transfer Practice

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when molecules collide and transfer energy to neighboring molecules.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium and can occur in a vacuum.

Front

How do molecules in cold substances move compared to hot substances?

Back

Molecules in cold substances move more slowly than those in hot substances.

Front

What happens to magma when it increases in temperature?

Back

When magma increases in temperature, it becomes less dense and moves up (rises) towards the surface.

Front

From where to where does heat transfer?

Back

Heat transfers from an area of high temperature to an area of low temperature.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is when a metal spoon gets hot after being placed in a pot of hot soup.

Front

What is an example of convection in nature?

Back

An example of convection is the way warm air rises and cool air sinks, creating wind patterns.

Front

What is an example of radiation?

Back

An example of radiation is the heat felt from the sun on your skin.

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.