Thermal Energy Unit Review

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in a substance due to their motion and position.

Front

What does temperature measure?

Back

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

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

How does the motion of particles relate to temperature?

Back

The faster the particles move, the higher the temperature of the substance.

Front

What happens to the thermal energy of a substance when it is heated?

Back

When a substance is heated, its thermal energy increases, causing the particles to move faster.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion. In the context of thermal energy, it refers to the motion of particles.

Front

How can you determine the average kinetic energy of a sample?

Back

To find the average kinetic energy, add up the kinetic energy of all particles and divide by the number of particles.

Front

What is the relationship between thermal energy and temperature in a frozen lake compared to a hot tub?

Back

A frozen lake has more thermal energy than a hot tub because it contains more particles, even though its temperature is lower.

Front

What happens to the molecules of a potato when it is heated in a campfire?

Back

The molecules of the potato move faster when heated, increasing its temperature.

Front

What is the effect of heat on particle motion?

Back

Heat increases the motion of particles, leading to higher temperatures.