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Q: Which of the following quantity does not change even after changing place?
  • A. Mass
  • B. Force due to friction
  • C. Weight
  • D. Gravity
Correct Answer: Option A - Mass is the amount of matter in the body which does not depend on the value of g. Weight of a body is the gravitational force on it. Thus, weight is dependent on gravitational acceleration (g). Hence, weight of a body will change from one place to another place because the value of g is different in different places. As mass is independent of g, so it will not change from place to place.
A. Mass is the amount of matter in the body which does not depend on the value of g. Weight of a body is the gravitational force on it. Thus, weight is dependent on gravitational acceleration (g). Hence, weight of a body will change from one place to another place because the value of g is different in different places. As mass is independent of g, so it will not change from place to place.

Explanations:

Mass is the amount of matter in the body which does not depend on the value of g. Weight of a body is the gravitational force on it. Thus, weight is dependent on gravitational acceleration (g). Hence, weight of a body will change from one place to another place because the value of g is different in different places. As mass is independent of g, so it will not change from place to place.