Energy Review - 7th Grade

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or height. It is the energy an object has because of its location in a gravitational field.

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 the speed at which it is moving.

Front

At what point does a diver have the least potential energy when diving?

Back

At the lowest point of the dive, just before entering the water.

Front

What happens to a skier's potential energy as she goes up a slope?

Back

The skier gains potential energy as she is lifted up the slope.

Front

What happens to a skier's potential energy as she skis down a slope?

Back

The skier loses potential energy as she skis down the slope.

Front

What form of energy is lightning?

Back

Lightning is a form of electrical energy.

Front

What is mechanical energy?

Back

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

Front

What type of energy does a cart at rest at the top of a hill have?

Back

The cart has all potential energy at rest at the top of a hill.

Front

What is the relationship between height and potential energy?

Back

Potential energy increases with height; the higher an object is, the more potential energy it has.

Front

What is the formula for kinetic energy?

Back

Kinetic energy (KE) = 1/2 * mass (m) * velocity (v)^2.