Simple Machines

What is a simple machine?

• A machine that uses electricity

• A machine that makes work easier

• A machine that only adults can use

• A machine that moves on its own

Which simple machine is used to move heavy objects up or down?

• Pulley

• Wheel and axle

• Wedge

• Lever

What simple machine is like a ramp and helps us move objects to a higher or lower place?

• Screw

• Inclined plane

• Wheel and axle

• Wedge

Which simple machine can you find on a doorknob or a bike?

• Screw

• Wheel and axle

• Pulley

• Lever

Which simple machine is like a seesaw?

• Pulley

• Lever

• Screw

• Wheel and axle

What simple machine has a sharp edge and is used to split things apart?

• Lever

• Pulley

• Screw

• Wedge

What is the purpose of a lever?

• To make work easier by changing the direction of the force

• To generate electricity

• To move on its own

• To only be used by adults

how many types are there of simple machines

• 7

• 6

• 5

• 8

What type of simple machine is shown here?

• Pulley
• Wheel and Axle
• Lever
• Wedge

Stairs are example of ?

• wedge
• pulley
• inclined plane
• wheel and axle