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SIMPLE MACHINES. What is a simple machine? It has few or no moving parts. It makes work easier.

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Presentation on theme: "SIMPLE MACHINES. What is a simple machine? It has few or no moving parts. It makes work easier."— Presentation transcript:

1 SIMPLE MACHINES

2 What is a simple machine? It has few or no moving parts. It makes work easier.

3 Types of Simple Machines Inclined Plane Wedge Screw Lever Pulley Wheel and Axle

4 Inclined Plane – a slanted surface to make lifting easier. Examples: Boat Ramp, Bottom of a bath tub, Stairs, Ladder

5 Wedge – two inclined planes together, back to back. Usually used to split an object. Examples: knife, ax, zipper, door wedge

6 Screw – the combination of a wedge at the bottom and an inclined plane around it. Examples: drill bits, screws

7 Lever – most things with a handle attached; used to lift heavy objects; fulcrum Examples: Seesaw, Crowbar, Rake

8 Pulley – a wheel with a groove running around it with a rope, cable or chain to change the direction of a force, usually gravity Examples: fishing reel, crane, flag pole, clothes line

9 Wheel and Axle – a rod or post secured to a wheel Examples: Steering Wheel, Wheel Barrel, Faucet Handle, Door Knob, Fan, Screw Driver

10 Simple machines can be used together to make complex machinery.


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