Question
Question: The term ‘mass’ is analogous to physical quantity \(\left( {\text{A}} \right)\) Weight \(\left(...
The term ‘mass’ is analogous to physical quantity
(A) Weight
(B) Inertia
(C) Force
(D) Acceleration
Solution
Newton's first law of motion states that "Unless any unbalanced force, on any object at rest and in motion with the same speed and in the same direction applied on it.
It is the natural characteristic of all objects to resist changes in their state of motion.
This characteristic to resist changes in their state of motion is called as inertia.
Complete step by step answer:
Mass and inertia are related to each other.
The ability of anybody to resist changes in its motion or to resist acceleration.
Newton’s first law is also called the law of inertia is defined as “A property of the body by which it continues in it’s their state of rest or of motion in a straight line, unless that state is changed by any external force”.
A physical quantity is expressed as a numerical value and a unit. So Physical quantity of mass will be measured as kg. More massive objects offer more inertia.
Inertia of an object is found by its mass only. If the external force is zero, the body remains in its same state that is resistance to change. Inertia is the resistance of the physical body to any change in its velocity. It includes changes to the object's speed, or direction of motion of the object.
Hence the correct option is (B).
Note: Inertia of any object depends on the mass of that particular object only.
Inertia is classified into three types
-Inertia of rest
-Inertia of motion
-Inertia of direction