Unit 4 Test Review: Work, Energy and Power

Front

What is gravitational potential energy?

Back

The energy an object has due to its height above the ground.

Front

What happens to the potential energy of a rock as it falls off a cliff?

Back

The potential energy decreases as the kinetic energy increases.

Front

What is a push or a pull called?

Back

Force.

Front

What is the unit of measurement for work?

Back

Joules.

Front

How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?

Back

27 J.

Front

What is the formula for calculating kinetic energy?

Back

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

Front

What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is the definition of power in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is the unit of measurement for power?

Back

Watts.