Question

Complete the statements.
1. Lever is a bar that rests on turning point called...........
2.
.............is a small device used for making rotation easier and with less effort.
3. The object that the lever moves is called the............
4. A.............is a simple machines that is used to hold up two things together,

5. The pulley system consists of..........and..........pulley.

6. A system with more than one pulley is known as...........


7. Gear are useful for changing the.,.....and speed of movement.

8..............is the biggest machines man has ever built.

9. The amount of work done by a machine in unit of time is called..........​

Answer 1

1. fulcrum

2.pulley

3.load.

4.screw

5.wheel and rope , chain or cable

6.moveable pulley

7. motion

8.large hadron collider

9.power