Simple Machines

A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  

• wedge
• screw
• lever
• inclined plane 

Which is not a type of simple machine?

• spring
• screw
• pulley
• wedge

Two examples of a pulley...

• knife & axe blade
• lightbulb & screw
• flagpole hoist & window blinds
• catapult & teeter totter

Stairs

• wedge
• pulley
• inclined plane
• wheel and axle

The transfer of energy that occurs when a force makes an object move is known as 

• effort
• potential 
• kinetic 
• work 

This device

• wedge
• lever
• incline plane
• wheel and axle

What type of simple machine is found on the cap of a pickle jar?

• lever
• inclined plane
• pulley
• screw

An inclined plane wrapped around a rod forms this simple machine 

• lever
• pulley
• screw
• wedge 

Lightbulb

• wedge
• pulley
• incline 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