Transcript Simple Machines What is a simple machine? It is a simple tool we use to make work easier. What is a lever? A lever is a.

Simple
Machines
What is a simple
machine?
It is a simple tool we use to make work easier.
What is a lever?
A lever is a bar that moves around a fixed
point.
How do we use it?
Levers help us lift, pull, and push things.
What is a wheel-and-axle?
It is made up of a wheel that is connected
to an axle and move together.
How we we use it?
Helps us move things.
What is a pulley?
A pulley is a wheel with a rope
wrapped around it.
How do we use it?
Helps us move things up and down.
What is an inclined plane?
It is a flat surface with one side higher than the
other.
How do we use it?
Helps us move up and down.
What is a wedge?
A wedge is two inclined planes placed back to
back.
How do we use it?
To cut things.
What is a screw?
An inclined plane wrapped around a pole.
How do we use it?
To hold things together.
Image Sources:
•http://www.fi.edu/qa97/spotlight3/spotlight3.html
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sImages.jpg
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/pages/broom.htm
•http://www.wpclipart.com/tools/hammer/hammer_1.png
•http://www.sbac.edu/~tpl/clipart/Toys/seesaw.jpg
•http://library.thinkquest.org/CR0210120/Media/ferris
•http://www.cartoonstock.com/newscartoons/cartoonists/cga/lowr
es/cgan628l.jpg
• http://opkansas.org/_Assets/cm/media_photos/slide.jpg
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e.jpg
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