Inertia of a body depends on 

(a)

weight of the object

(b)

acceleration due to gravity of the planet

(c)

mass of the object

(d)

Both a & b

The unit of ‘g’ is m s^-2. It can be also expressed as ______.

(a)

cms^-1

(b)

Nkg^-1

(c)

Nm²kg^-1

(d)

cm²s^-2

One kilogram force equals to

(a)

9.8 dyne

(b)

9.8 × 10⁴ N

(c)

98 × 10⁴ dyne

(d)

980 dyne

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be ____kg

(a)

4 M

(b)

2 M

(c)

M/4

(d)

M

Study of moving bodies under the action of forces ______

(a)

Statics

(b)

Kinematics

(c)

Dynamics

(d)

Mechanics

The resistance of a body to change its state of rest is called

(a)

inertia of rest

(b)

inertia of motion

(c)

momentum

(d)

inertia of direction

The resistance of a body to change its state of motion is called

(a)

force

(b)

momentum

(c)

inertia of motion

(d)

inertia of direction

The act of cleaning a carpet by heating it with a stick is an example for inertia of

(a)

motion

(b)

direction

(c)

rest

(d)

momentum

A luggage is usually tied with a rope on the roof of the buses due to

(a)

inertia of motion

(b)

inertia of direction

(c)

inertia of rest

(d)

momentum

Inertia is a _______

(a)

property of matter

(b)

type of force

(c)

the speed of an object

(d)

none of the above

A & B are two objects with masses 100 kg & 75 kg respectively, then _______

(a)

both will have same inertia

(b)

B will have more inertia

(c)

A will have more inertia

(d)

both will have less inertia

The SI unit of force is

(a)

energy

(b)

joule

(c)

newton

(d)

dyne

A force is applied by direct physical contact between two bodies is

(a)

Contact force

(b)

Non - contact force

(c)

Balanced force

(d)

Unbalanced force

A body is said to be under balanced force when the resultant force applied on that body is

(a)

zero

(b)

infinite

(c)

ore

(d)

none

Acceleration of an object will increase as the net forces increases depending on its

(a)

volume

(b)

mass

(c)

shape

(d)

density

___________ is used to change the speed of car.

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Acceleration

A man of mass 100 kg has a weight of ___________ at the surface of the Earth

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980 N

______ deals with the motion of bodies without considering the cause of motion.

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Kinematics

Kinetics deals with the motion of bodies considering the _______

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cause of motion

According to Aristotle, a moving body naturally comes to rest without any external force is termed as _______

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natural motion

Newton’s I law

(1)

Law of force

Newton’s II law

(2)

stable equilibrium of a body

Principle of moments

(3)

Sum of clockwise moments = sum of anticlockwise moments

Torque

(4)

GM \(\frac { m }{ { R }^{ 2 } } \)

Gravitational force

(5)

Rotating force