Question

Q1. An inclined plane wounded around a rod is called a) pulley b) screw c) wedge d) lever
Q2. An example of second-class lever a) sea-saw b) bottle opener c) scissor d) stapler
Q3. The metamorphic rock made from granite is a) slate b) marble c) gneiss d) quartz
Q4. A simple machine used in sewing machine is a) wheel and axle b) needle c) wedge d) pulley
Q5. What is the position of the load in a second-class lever? a) between the fulcrum and the effort b) on the same side of the fulcrum c) before the effort d) none of these
Q6. Which component of the air is not directly used by the living beings? a) water vapour b) carbon dioxide c) nitrogen d) oxygen​

Answer 1

Answer:

1 (c)

2 (b)

3 (a)

4 (d)

5 (a)

6 (b)