Work, Simple Machines, and Mechanical Advantage

Front

What is the unit of force?

Back

Newtons (N)

Front

What is the unit of work?

Back

Joules (J)

Front

What is the unit of power?

Back

Watts (W)

Front

What is the center point of a lever called?

Back

Fulcrum

Front

Which of the following is NOT an example of a wheel and axle?

Back

Lever

Front

How much work is done when a force of 1.0 newton lifts a book 2 meters?

Back

2 Joules (J)

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine.

Front

What is the formula for calculating work?

Back

Work = Force x Distance (W = F x d)

Front

What is a simple machine?

Back

A device that changes the direction or magnitude of a force.

Front

Name three types of simple machines.

Back

Lever, pulley, inclined plane.