Simple machines

Identify this simple machine

• Lever
• Wheel & Axle
• Inclined Plane
• Screw

Which is an example of someone using a simple machine to do work?

• a boy runs across a football field
• a banker counts money
• a mother pushes a stroller up a ramp
• a girl eats a sandwich

The device used to raise a flag up a flag pole is an example of a 

• wheel and axle 
• lever
• inclined plane 
• pulley 

An inclined plane wrapped around a rod forms this simple machine 

• lever
• pulley
• screw
• wedge 

A simple machine that consists a rigid bar that pivot about a fixed point

• lever
• pulley
• wheel and axle
• fulcrum 

An axe is an example of a

• pulley
• inclined plane
• screw
• wedge 

A seesaw is an example of a  

• wedge
• lever 
• inclined plane 
• pulley 

Stairs

• wedge
• pulley
• inclined plane
• wheel and axle

Lightbulb

• wedge
• pulley
• incline plane
• screw

Which is not a type of simple machine?

• spring
• screw
• pulley
• wedge