1. By. Justin white

2. A gear is some thing that moves and it makes some thing else move (To see a gear Look at the picture below)

3. A lever is some thing that go up and down (To see a lever look at the picture below)

4. A inclined plane is a ramp (to see a inclined plane/ramp look at the picture below)

5. A wedge is some thing sharp (to see a wedge look at the picture below)

6. A pulley is a rope and a wheel to lift a load(to see a pulley look at the picture below)

7. A screw holds two things together (to see a screw look at the picture below)

8. A rod connecting 2 wheels (to see a axle look at the picture below)

9. The effort needed to move a certain distance(to see work look at the picture below)