Question # 1

A man in an elevator ascending with an acceleration will feel that his weight.

Choose an answer

Has increased

Has decreased

Remains the same

Vanishes

Which of the following quantities is zero about the centre of mass of body.

Choose an answer

Mass

acceleration

Moment

Angular acceleration

If the average velocity of an object zero in some time interval, the displacement of the object for that interval will be.

Choose an answer

Infinite

Zero

Increasing

Decreasing

If gravitational field is not uniform over the extended object or system of point masses the centre of mass and centreof gravity will

Choose an answer

Be antiparallel

Not coincide

Coincide

Be perpendicular

Which one of the following is not a dimensionless quantity.

Choose an answer

Radian

pi

Decibel

Force

Which one of the following pairs does not have the same dimensions.

Choose an answer

Force and weigfht

Pressure and stress

Capacitance and resistance

Energy and work

Angular acceleration is produced due to

Choose an answer

Centripetal force

Torque

Force

Mass

When a projectile reaches the highest point the vertical component of velocity becoems.

Choose an answer

Small

Vi cos thetha

Zero

Maximum

When the velocity of body is doubled which one is doubled too.

Choose an answer

K.E.

P.E

Momentum

Acceleration

When an arrow is shot from a bow, it has K.E. which is given to it by

Choose an answer

The elongated tail

The stretched string of bow

The throw of archer

The sharp arrows head

Which of the following quantities associated with SHM does not vary periodically.

Choose an answer

velocity

Displacement

Acceleration

Total energy

The curve between the acceleration and velocity of a body in SHM is a

Choose an answer

Circle

Ellipse

Square

Parabola

When two vectors have opposite directions we say that they are

Choose an answer

Parallel

Antiparallel

Perpendicular

Out of phase

In simple harmonic motion it is found that the total energy of a system.

Choose an answer

Is independent of the amplitude

Depends on the amplitude squared

Is independent of the mass

All of these

When a force of 4 N acts on a body of mass 2 kg for a time of 2 s, the rate of change of momentum is.

Choose an answer

2 kg ms -1

4 kg ms-1

8 kg m s-1

16 kg m s-1

The condition of complete equilibrium is satisfied if.

Choose an answer

Vector sum of all the torques is zero

Vector sum of all the forces is zero

Vector sum of all the forces and torques is zero

Angular acceleration is zero

A shell explodes and many pieces fly off in different directions, which of the following is conserved.

Choose an answer

Momentum

K.E.

Momentum and K.E

Neither momentum nor K.E.

If the earth stopped rotating the weight of objects at either pole would.

Choose an answer

Be grater

Be less

Vary with altitude

Be the same before

When the lift is moving upward with an acceleration then weight of the object will be.

Choose an answer

w = ma

w - ma

w

2 w

MT-2 is the dimensionless formula of.

Choose an answer

Moment of iniertia

Viscosity

surface tension

Angular acceleration

The centre of gravity of a body is

Choose an answer

The centre of the body

The point at the mass of the body acts

The point at which the whole weight of the body acts

The point of rotation

More Classes

Other Links

PPSC Physics Chapter 1 MECHANICS MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer