Unit 5: Thermal Energy Test Corrections

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 the direction of energy transfer between two objects with different temperatures?

Back

Energy transfers from the object with a higher temperature to the object with a lower temperature.

Front

What is conduction?

Back

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

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.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as light.

Front

What is an example of conduction?

Back

Touching a hot metal spoon that has been in a pot of boiling water.

Front

What is an example of convection?

Back

The attic being warmer than the basement due to warm air rising.

Front

What is an example of radiation?

Back

The Sun heating the Earth through space.

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.

Front

How does boiling water demonstrate convection?

Back

In boiling water, the hot water at the bottom rises to the top, while cooler water descends, creating a circular motion.