Question

B. Choose the correct options and fill in the blanks.
1. In a class-three lever, the .......
(fulcrum/load) is in the middle.
2. Two or more inclined planes join together to form a ..............
(wedge/screw)
3. Water is drawn from a well using a
(pulley/lever)
A .......
(nut cracker/sea-saw) is an example of a class-two lever.
5. Coolies load barrels onto a truck using a/an
(pulley/inclined plane).
6. In a first-class lever, the .....
(fulcrum/load) is in the centre.
7.
...... (Class-two levers/Class-three levers) are called force multipliers,​

Answer 1

Answer:

1 ) In a class-three lever, the ..load..

(fulcrum/load) is in the middle.

2)A wedge is made of two inclined planes joined together to make a sharp edge.

3) Water is drawn from a well using a

pulley

Answer 2

Answer:

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