Potential & Kinetic

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It has the potential to do work when released.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and its velocity.

Front

When is kinetic energy highest in a pendulum swing?

Back

Kinetic energy is highest at the lowest point of the swing.

Front

What type of energy does a battery contain?

Back

A battery contains potential energy.

Front

What type of energy does an acorn hanging from an oak tree have?

Back

An acorn hanging from an oak tree has potential energy.

Front

At which point in a pendulum's swing is kinetic energy greatest?

Back

Kinetic energy is greatest at the lowest point of the swing.

Front

Which of the following is an example of kinetic energy? a. a car parked on a steep hill, b. a tennis ball rolling across the court, c. a picture hanging on the wall, d. a piece of coal before it's burned

Back

b. a tennis ball rolling across the court is an example of kinetic energy.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.

Front

How does mass affect kinetic energy?

Back

Kinetic energy increases with the mass of the object; more massive objects have more kinetic energy at the same speed.

Front

How does speed affect kinetic energy?

Back

Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by four times.