Physics
Identify the correct statement from the following :
- Mass is a force and is measured in Newton.
- The weight of a body is the same everywhere in the universe.
- Mass remains constant, but weight changes with gravity.
- Weight is measured using a physical balance.
Related Questions
The S.I. unit of weight is :
- kg
- Joule
- Newton
- dyne
The mass of a body :
- changes with a change of place
- changes with direction
- changes when the velocity of the body is close to the velocity of light
- none of these
Assertion (A) : The magnitude of non-contact force between two bodies decreases with the increase in distance of separation between them.
Reason (R) : The magnitude of non-contact force between two bodies varies inversely as the square of distance of separation between them.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Assertion (A) : Inertia is an inherent property of each body by virtue of which it has a tendency to resist the change in its state of rest only.
Reason (R) : Force is that external cause which tends to change the state of rest or the state of motion of an object.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false