Amplify Thermal Energy End of Unit Practice

Front

What is a molecule?

Back

A group of atoms joined together.

Front

What does it mean to infer?

Back

To reach a conclusion using evidence and reasoning.

Front

Explain the movement of thermal energy in a glass of lemonade with ice.

Back

Heat is moving from the lemonade to the ice.

Front

Which sample has molecules with more average kinetic energy?

Back

Sample A because it has faster moving molecules.

Front

What happens to the energy of the molecules in a hockey puck when its temperature decreases?

Back

The energy of the molecules in the hockey puck decreases.

Front

What is thermal energy?

Back

The total kinetic energy of all the molecules in a substance.

Front

How does heat transfer occur?

Back

Heat transfers from areas of higher temperature to areas of lower temperature.

Front

What is kinetic energy?

Back

The energy an object has due to its motion.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the average kinetic energy of the molecules increases.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.