Question

Question 1

(a) (i) Define the least count of an instrument.

(ii) What is the least count of a standard laboratory micrometer screw

gauge?

[2]

(b) A spring balance is used to find the weight of a body X on the surface of the

moon. The mass of the body X is 2 kg and its weight is recorded as 3.4 N. The

weight of another body Y recorded by the same balance is found to be 7.65 N.

Calculate the mass of the body Y.

[2]

(c) State two differences between mass and weight. [2]

(d) Two pendulums P and Q have equal lengths but their bobs weigh 10gf and 20gf

respectively.

(i) Compare their time periods.

(ii) Give a reason for your answer.

[2]

(e) Why do we need to run a certain distance before getting into a moving bus? [2]​

Answer 1

Answer:

how much answer in it

crop 1 answer and send