# GENERAL KNOWLEDGE

## GK

### PHYSICS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Define the term inertia.
 A the amount of matter in an object B the amount of space an object takes up C the tendency of an object to resist a change in motion, determined by mass D The force that one surface exerts on another when the two rub against each other
Explanation:

Detailed explanation-1: -An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net force. This property of an object to resist change in motion is called inertia.

Detailed explanation-2: -Newtonâ€™s first law states that an object in motion tends to remain in motion with same speed and direction, or object at rest tends to be at rest, until and unless an external unbalanced force acts on the object. This tendency of an object to resist its initial state of motion is called inertia.

Detailed explanation-3: -Definition of Inertia: The inherent property of an object due to which it resists any change in its state of rest or of uniform motion in a straight line by itself is called inertia.

Detailed explanation-4: -Inertia: tendency of an object to resist changes in its velocity. An object at rest has zero velocity-and (in the absence of an unbalanced force) will remain with a zero velocity.

Detailed explanation-5: -inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.

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