Question

The inertia of an object tends to cause an object
A. to increase its speed
B. to decrease its speed
C. to resist any change in it motion
D. to decelerate due to friction

Answer 1

Hint: If there is no external force applied to the body, then the body at rest will remain at rest, while the body in motion will continue to move with uniform velocity. This property of the body is called inertia. The body opposes any change in its body, and will remain in its state as it was earlier.

Complete answer:
Now from the question,
As already discussed above Inertia is the property of the body by which it opposes any change in its state. Therefore, it resists any change in its motion. Inertia is directly proportional to the mass of the body. It is of three types-
1. Inertia of rest
2. Inertia of motion
3. Inertia of direction

So, the correct answer is “Option C”.

Note:
Inertia is that the resistance of any object to any change in its velocity. This includes changes to the object's speed, or direction of motion. A facet of this property is that the tendency of objects to be occupied a straight path at a continuing speed, when no forces influence them.

In common usage, the term "inertia" may ask an object's "amount of resistance to vary in velocity" or for less complicated terms, "resistance to a change in motion" (which is quantified by its mass), or sometimes to its momentum, counting on the context. The term "inertia" is more properly understood as a shorthand for "the principle of inertia" as described by Newton in his first law of motion: an object not subject to any net external force moves at a continuing velocity. Thus, an object will continue moving at its current velocity until some force causes its speed or direction to vary .On the surface of the world , inertia is usually masked by gravity and therefore the effects of friction and air resistance, both of which tend to decrease the speed of moving objects (commonly to the purpose of rest).