Simple Machines

One of the six devices that makes work feel easier

• Load

• Lever

• Simple Machine

• Inclined Plane

Simple Machine that is made of a sloped surface

• Lever

• Inclined Plane

• Wedge

• Wheel and Axle

An object that is to be pushed or pulled

• Lever

• Load

• Fulcrum

• Force

Part of a lever where the beam is supported

• Load

• Effort Arm

• Load Arm

• Fulcrum

A knife is an example of a...

• Pulley

• Wheel and Axle

• Screw

• Wedge

A seesaw is an example of a...

• Lever

• Inclined Plane

• Pulley

• Wheel and Axle

A doorknob is an example of a...

• Wedge

• Screw

• Wheel and Axle

• Pulley

A pulley works by reversing the __________ of the force needed to lift an object

• Work

• Direction

• Effort

The _________ arm of a Lever will be the arm that holds the weight of a bucket or other object

• Fulcrum

• Load

• Effort

If you want to lift a very head load, you may use a lever. Where should you put the fulcrum, so that LESS force is exerted on the effort arm?

• Closer to the effort arm

• Halfway between the effort arm and the load arms

• Closer to the load arm