Simple Machines

A simple machine is a device that helps to reduce the amount of _____ required to work.

• force
• energy
• work

____ is done when a force is applied over a distance.

• energy
• work
• force

A fishing pole is an example of a compound machine. What simple machines are used to make up this compound machine?

• lever, wheel and axle, pulley
• wheel and axle, inclined plane, pulley
• wheel and axle, pulley, inclined plane

Stairs

• wedge
• pulley
• inclined plane
• wheel and axle

This device

• wedge
• lever
• incline plane
• wheel and axle

This device

• wedge
• lever
• incline plane
• wheel and axle

Lightbulb

• wedge
• pulley
• incline plane
• screw

Name this simple machine. 

• Wheel and Axle
• Lever
• Pulley
• Wedge

The greatest amount of force is required to move the metal block up which inclined plane?

• A
• B
• C
• D

The unit of measure for work is_____________.

• meters

• joules

• newtons

• millibars