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Simple Machines. Types Of Simple Machines leverpulleyscrewwedge Inclined plane Wheel and axle.

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Presentation on theme: "Simple Machines. Types Of Simple Machines leverpulleyscrewwedge Inclined plane Wheel and axle."— Presentation transcript:

1 Simple Machines

2 Types Of Simple Machines leverpulleyscrewwedge Inclined plane Wheel and axle

3 Machines Machines make work easier. Machines allow you to use less force to do work. work and energy video 13:00 min

4 Levers A lever is a long bar with a support. The fulcrum supports the weight of the bar and what the bar carries. The object you want to move is called the load. The effort is a push or pull that moves the load in some way.

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6 Welcome to Discovery Education Player (3:23 minutes)

7 Wheel and Axle A special kind of lever that moves or turns objects

8 wheel and axle video 1:36min

9 Pulley A pulley is a wheel and axle with a a rope, wire or chain around it. A pulley changes the direction of force—you pull down on the rope to make the load go up

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11 pulley video 2:53min

12 Inclined Plane An inclined plane is the same as a ramp. Objects can be slid up or down an inclined plane to make the job easier.

13 inclined plane video 1:28 min

14 Wedge A special kind of Inclined Plane Wedges are used to split things apart They can also be used to hold things together.

15 Wedge Video 1:43 min

16 Screw A screw is also an inclined plane. If you could unwrap a screw’s threads you could see the inclined place. Screws fasten things together.

17 screw video 1:44 min

18 Complex Machines Complex Machines are Simple Machines working together.

19 The handles are levers The sharp edge is a wedge Winding the handle is turning a wheel and axle inside

20 Review video on all simple machines 14:36 min Review video on all simple machines 14:36 min


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