Work and Power

Front

Units for work are: newtons, joules, meters, seconds

Back

joules

Front

If you push a cart with a force of 60 N for 2 m, how much work have you done?

Back

120 J

Front

work transfers

Back

energy

Front

What is the formula for work?

Back

Work = force x distance

Front

The equation for POWER is:
a) power = mass x time
b) power = work / time
c) power = time / work
d) power = work x time

Back

power = work / time

Front

_______________ is done when a force acts on an object and the object moves in the direction of the force.

Back

Work

Front

________________ is the rate at which work is done.

Back

Power

Front

The unit of power (aka Joule per second)

Back

Watt

Front

This theorem states, "The net work done on an object is equal to the change in its kinetic energy"

Back

Work-Energy Theorem

Front

"The mechanical energy of a system neither increases nor decreases in any process. It stays constant and is conserved." this is...

Back

Law of conservation of energy