Power, Work, and Energy Review

Front

What is the SI unit of work?

Back

Joules (J)

Front

What is the formula for Kinetic Energy?

Back

KE = 1/2 m v²

Front

What type of work is done when a car skids to a stop?

Back

Negative work is done on the car.

Front

What is the SI unit for power?

Back

Watts (W)

Front

How is work calculated?

Back

Work (W) = Force (F) × Distance (d)

Front

What is the formula for Potential Energy?

Back

PE = mgh (mass × gravity × height)

Front

If 200 N of force is applied over 426 meters, how much work is done?

Back

85,200 J

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy.

Front

What is the formula for Power?

Back

Power (P) = Work (W) / Time (t)

Front

What is the unit of energy equivalent to 1 Joule?

Back

1 Joule is equivalent to 1 Newton meter.