1. A Wheel and axle is a special kind of…………..

2. The Center of the wheel is called……………

3. By which method we can increase the movement of wheel……………

4. Which machine is used to draw water from well…………….

5. In a simple pulley, one end of the belt is a ……… and the other end apply ……..

6. In a pulley, if the direction of force is downward then what will be the direction of load ……..

7. When a pulley is free to move up and down along with load, it is called a……………..

8. The advantage of a movable pulley is that the effort needed to move the load is ………….than the weight of the load.

9. Using two or more pulleys reduces the amount of……..needed.

10. A crane uses a…… to lift the heavy load.