Energy Transformations and Conservation of Energy

Front

What does the Law of Conservation of Energy state?

Back

Energy cannot be created or destroyed, it can only be transformed.

Front

What energy transformation occurs in a battery-operated radio?

Back

Chemical to electrical to sound.

Front

How does the amount of energy before an energy transformation compare to after?

Back

The total amount of energy before and after the transformation is the same.

Front

What energy transformations occur when water falls through a dam to produce electricity?

Back

Mechanical → electrical → light.

Front

What are examples of kinetic energy?

Back

A moving car, running, and throwing a ball.

Front

What is potential energy?

Back

Energy stored in an object due to its position or state.

Front

Give an example of energy transformation in a light bulb.

Back

Electrical energy is transformed into light and thermal energy.

Front

What is mechanical energy?

Back

The sum of potential and kinetic energy in an object.

Front

What is thermal energy?

Back

Energy that comes from the temperature of matter; it is the total energy of all the particles in an object.

Front

What is an example of energy conservation in a pendulum?

Back

At the highest point, potential energy is maximum; at the lowest point, kinetic energy is maximum.