Question

C. Write T and F.
1.
A screw jack is used to drive a nail into a wall.
2. Gears are used for a gain in speed.
3. A claw-hammer is a class-three lever.
4.
In a wheel-barrow, the fulcrum is in the middle.
5. According to the 'Law of Levers, Load Load arm = Effort x Effort arm.
6.
In a single fixed pulley, the distance moved by the effort is equal to the distance moved by
the load.
7.
A sewing machine is a simple machine.
8. Regular oiling and polishing increases the life of a machine.
9. The steeper the slope of an inclined plane, the greater its efficiency.
10. The point at which a lever is supported is called the axle.​

Answer 1

Answer:

T

T

T

T

T

Step-by-step explanation:

T

F

T

F

F

please check answers

Answer 2

1. False

2. True

3. False

4. False

5. True

6. True

7. False

8. True

9. True

10. True