Physical Science Lessons 5-7 Proof of Mastery Review

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal energy?

Back

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

Front

How does temperature affect thermal energy?

Back

As temperature increases, the thermal energy of an object also increases.

Front

What happens to gravitational energy when an object falls?

Back

Gravitational energy decreases as the object falls.

Front

What happens to kinetic energy when an object accelerates?

Back

Kinetic energy increases as the object's speed increases.

Front

What is kinetic energy?

Back

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

Front

What is the relationship between mass and thermal energy?

Back

An object's thermal energy is directly related to its mass; more mass means more thermal energy.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What happens to energy when a sound is emitted?

Back

The object loses some of its energy to the surroundings.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on an object's position.