1)

______ is required to keep a body in motion.

Class 11 Physics

A)

External force

B)

External acceleration

C)

External velocity

D)

External torque

2)

The law of inertia was given by

Class 11 Physics

A)

Einstein

B)

Galileo

C)

Newton

D)

Maxwell

3)

Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by some external force to act otherwise. This is the

Class 11 Physics

A)

Both a and b

B)

First law of motion

C)

Law of inertia

D)

None

4)

A body at rest continues to remain at rest and a body in motion continues to move with uniform velocity only if

Class 11 Physics

A)

Both a and b

B)

Net external force is zero

C)

Net external force is non zero

D)

None

5)

Inertia is nothing but the

Class 11 Physics

A)

Both a and b

B)

Resistance to change

C)

Opposition

D)

None

6)

If the net external force on a body is zero then it’s

Class 11 Physics

A)

Acceleration is non zero

B)

Acceleration is zero

C)

Velocity is also zero

D)

None

7)

Acceleration can be non zero only if there is

Class 11 Physics

A)

Both a and b

B)

A net external force on the body

C)

No net external force on the body

D)

None

8)

The momentum of the body is the product of

Class 11 Physics

A)

Mass and displacement

B)

Mass and velocity

C)

Mass and acceleration

D)

None

9)

Momentum is the

Class 11 Physics

A)

Tensor quantity

B)

Vector quantity

C)

Scalar quantity

D)

None

10)

The greater the rate of change of momentum

Class 11 Physics

A)

Force is zero

B)

Greater is the force

C)

Less is the force

D)

None