Thermal Energy Chapter 3 Flashcard

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which is related to its temperature.

Front

What does temperature measure?

Back

Temperature measures the average kinetic energy of the particles in a substance.

Front

How does mass affect kinetic energy?

Back

The greater the mass of an object, the greater its kinetic energy, assuming the velocity is constant.

Front

What is kinetic energy?

Back

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

Front

What happens to thermal energy when two objects at different temperatures come into contact?

Back

Thermal energy will flow from the hotter object to the cooler object until they reach thermal equilibrium.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact no longer transfer thermal energy to each other because they are at the same temperature.

Front

Why does a bowl of soup have more thermal energy than a cup of soup at the same temperature?

Back

The bowl has more thermal energy because it has a greater mass, which means more particles contributing to the total thermal energy.

Front

What is the relationship between temperature and kinetic energy?

Back

As the temperature of a substance increases, the average kinetic energy of its particles also increases.

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 and gases) caused by differences in temperature.