Question

C. Tick the correct answer.
1. Which of these simple machines helps to move heavier objects to a height?
(a) Lever
(b) Inclined plane (c) Pulley
2. Tongs are an example of
(a) first class lever. (b) second class lever.
(c) third class lever.
3. Lever is a rigid bar or rod that rests on a support called
(a) fulcrum.
(b) load.
(c) effort
4. Which of these is a modified lever of the first class?
(a) Wedge
(b) Fixed pulley
(c) Wheel and axle​

Answer 1

Explanation:

1.(c)

2.(b)

3.(a)

4.(b)

Answer 2

Answer:

1. inclined plane

2. third class lever

3.fulcrum