Energy

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is potential energy?

Back

Potential energy is stored energy that has the potential to do work, such as a stretched rubber band.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion, which depends on the mass and speed of an object.

Front

How can you increase potential energy?

Back

You can increase potential energy by changing the position of an object, like lifting it higher or tightening a spring.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

Front

What happens to kinetic energy if an object's speed doubles?

Back

If an object's speed doubles, its kinetic energy increases by four times.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of energy transformation?

Back

An example of energy transformation is a battery converting chemical energy into electrical energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is the relationship between energy and motion?

Back

Energy is required to create motion; without energy, objects remain at rest.