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

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Presentation on theme: "Simple Machines. What is a simple machine? It is a simple tool we use to make work easier."— Presentation transcript:

1 Simple Machines

2 What is a simple machine? It is a simple tool we use to make work easier.

3 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.

4 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.

5 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.

6 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.

7 What is a wedge? A wedge is two inclined planes placed back to back. How do we use it? To cut things.

8 What is a screw? An inclined plane wrapped around a pole. How do we use it? To hold things together.

9 Image Sources: sImages.jpg /pages/broom.htmhttp://www.rockingham.k12.va.us/sound_sorting/initial_blends/br /pages/broom.htm es/cgan628l.jpghttp://www.cartoonstock.com/newscartoons/cartoonists/cga/lowr es/cgan628l.jpg e.jpghttp://library.thinkquest.org/J002079F/images/log_splitter_wedg e.jpg


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