Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

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Simple Machines

Transcript of Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Page 1: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Simple Machines

Page 2: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

A Simple Machine?

Simple machines help us do work.

Machines make work easy.

Page 3: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

So What? Simple machines make work easier

Simple machines either change the amount of force on an object or change the direction of the force

Machines DON’T diminish the amount of work we do—they just make it easier!

Two or more SIMPLE machines make a COMPLEX machine!

Page 4: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

What is a Simple Machine?

Simple machines have few or no moving parts.

There are 6 kinds of simple machines.

Page 5: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

What are the 6 kinds of simple machines?

1. Inclined plane

2. Wedge

3. Screw

4. Wheel and axle

5. Pulley

6. Lever

Page 6: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

An Inclined Plane?

Page 7: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

…inclined plane is like a flat board that is higher on one end.

Actually, an Inclined Plane…

…inclined plane makes work easier.

Page 8: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other inclined planes?

Page 9: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

A Wedge?

Page 10: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

… is two inclined planes pushed together like a V.

…pushes things away from each other.

…split things.

Actually, a wedge…

Page 11: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other wedges?

Page 12: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

A Screw(ge)?

Page 13: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

…is an inclined plane wrapped around a shaft or cylinder (the inclined plane allows the screw to move itself when rotated).

…holds things together and can make them go up and down.

Actually, a screw…

Page 14: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other screws?

Page 15: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Wheels and axles?

Page 16: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

…is a pole that goes through the wheel which allows the wheel to turn

Actually, a wheel and axle…

Page 17: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other wheels and axles?

Page 18: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Pulleys?

Page 19: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

…is a wheels and axles with a groove around the outside

..needs a rope, chain or belt around the groove to make it do work

Actually, a pulley…

Page 20: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other pulleys?

Page 21: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Lever?

Page 22: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

… is a board on top of something else.

…can balance things or move them

Actually, a lever…

Page 23: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Can you think of some other levers?

Page 24: Simple Machines A Simple Machine? Simple machines help us do work. Machines make work easy.

Simple Machines

Simple machines can be put together in different ways to make complex machinery