Simple machines

2. , a solid circular item that rotates front and back. In some cases it can be controlled by the steering _ _ _ _ _.
3. multipliers , a device that increases the speed of a object.
5. , a wheel that consist of a grooved rim in which a pulled rope or chain can change direction of the pull therefor is able to lift a load.
7. multipliers , tools that help you increase your effort but can produce more output.
10. advantage , the advantage gained by the use of a machine
12. , try
13. , a object that consists of many particles and can be madero used for different purposes.

1. , l_ _ _ r
3. machine , a object that consists of many particles and used to make our daily lives easier.
4. , a item that is placed in the middle of a load and a effort. It can be placed anywhere eg a elbow and the load is something held in the hand.
6. , a bundle of items placed on a ginger object for a purpose eg transportation.
8. plane , a plane set to a horizontal angle used to lower or raise a load by rolling or sliding
9. , a shaft used to rotate a gear or wheel.
11. , a circular object surrounded by teeth it comes in different size and shapes.