simple machines

1. pulley

2. help to move the big box

3. lever

4. lever

4.1. in midle time its e catapult

5. wedge

5.1. hlep you to cut

6. wheel and axle

6.1. its helping you to drive

7. screw

7.1. help to stec

8. inclined plain

8.1. exlenpel its the saim of a vage