Question # 1

The SI unit of angular momentum is.

Choose an answer

kg m-1 s

kg m2 s

kg m s-1

kg m2 s-1

The dimensional formula for torque is identical to.

Choose an answer

Kinetic energy

Pressure energy

Moment of force

All of the above

The gravitational field strength at a point p on the earth's surfae is numerically equal to.

Choose an answer

The acceleration of free fail at p

The change in P.E. per unit distance at P

The work done in bringing unit mass from infinity to P

A force of 100 N acts on body of mass 5 kg for 10 s. The velocity of the body will be.

Choose an answer

2 ms -1

20 m s-1

200 ms-1

2.000 m s-1

An astronaut in an earth satellite will observe the sky as

Choose an answer

Light blue

Deep blue

White

Black

The total energy of body executing SHM is directly proportional to.

Choose an answer

Amplitude

Square of amplitude

Square root of amplitude

Reciprocal of amplitude

A body of mass 1 kg hanging with a spring of spring constant 60 N m-1 is rotation in a horizontal circle The values of angular frequency will be.

Choose an answer

80 .94 Hz

89. 4 Hz

98. 4 Hz

108 . 6 Hz

Newton's first law of motion provides the definition of.

Choose an answer

Distance

Force

Vector

Acceleration

The point of which the whole weight of the body acts

Choose an answer

zero point

Centre of mass

Centre of gravity

Equilibrium

For the angular momentum of a system to remains constant, the external torque should be

Choose an answer

small

Large

Neither small nor large

zero

If average acceleration is equal to instantaneous acceleration then the body's said to be moving.

Choose an answer

Negative acceleration

Positive acceleration

uniform acceleration

Variable acceleration

If the dot product of two non zero vectors vanishes the vectors will be.

Choose an answer

any scalar quantity

Any negative number

Its magnitude but not direction

Its magnitude and direction

The process of getting energy by direct combusting method from the waste products is commonly known as.

Choose an answer

Solid waste

Depletion region

Green house

Fregmentation

If there are no frictional effects, the mechanical energy of a system executing simple harmonic motion.

Choose an answer

Changes with time

Is variable

Is constant

Is not conserved

If a vehicle is to gain momentum it must

Choose an answer

Lose weight

Move slowly

Lose inertia

Accelerate

The dimensions of work are

Choose an answer

[MLT-2]

[ML2T-2]

[ML2T-1]

[MLT-1]

Which of the following is the magnitude of the gravitational force and is not the inherent property of the body.

Choose an answer

Mass

Weight

Speed

Length

Time period of a simple pendulum depends upon.

Choose an answer

Thickness of the thread

Mass of the pendulum

Length of the pendulum

Amplitude of vibration

A particle performs SHM of amplitude 0.020 and frequency 2.5 Hz. What is its maximum speed.

Choose an answer

0.050 m s-1

0.125 m s-1

0.314 m s-1

0.75 m s-1

If slope of velocity time graph gradually decreases, then a body is said to have

Choose an answer

Negative acceleration

Positive acceleration

Uniform velocity

Variable velocity

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