Concept 1: Nature of Energy Test Review

Front

What is the formula for kinetic energy?

Back

KE = 1/2mv², where m is mass and v is velocity.

Front

What is energy in motion called?

Back

Kinetic Energy (KE)

Front

How do you calculate the potential energy of an object?

Back

PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the unit of energy?

Back

Joules (J)

Front

What is the definition of energy?

Back

The ability to cause change.

Front

What type of energy is stored in a compressed spring?

Back

Elastic Potential Energy.

Front

What is the potential energy of a 4 kg apple at a height of 2 m?

Back

PE = mgh = 4 kg * 9.8 m/s² * 2 m = 78.4 J.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy in motion, while potential energy is stored energy based on position.

Front

What is the formula for gravitational potential energy?

Back

PE = mgh.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy increases with mass; doubling the mass doubles the kinetic energy if velocity is constant.