Potential vs. Kinetic Energy

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a rock at the top of a hill has potential energy because of its height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

Can kinetic energy be converted to potential energy?

Back

Yes, kinetic energy can be converted to potential energy, such as when a roller coaster climbs to the top of a hill.

Front

What shape describes the relationship between kinetic energy and speed?

Back

The relationship between kinetic energy and speed is described by a parabola.

Front

If the speed of an object doubles, how does its kinetic energy change?

Back

If the speed of an object doubles, its kinetic energy quadruples.

Front

What factors affect potential energy?

Back

Potential energy is affected by the height of an object and the mass of the object.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for potential energy?

Back

The formula for potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

Does the amount of material affect the energy of an object?

Back

Yes, the amount of material (mass) affects the amount of energy an object has.

Front

What happens to potential energy as an object falls?

Back

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