Question # 1

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

Choose an answer

Distance

Force

Vector

Acceleration

A bomb dropped from an aeroplane explodes in air, its total.

Choose an answer

Momentum decreases

Momentum increases

K.E. Increases

K.E. Decreases

The magnitude of the resultant of two forces may be increased by

Choose an answer

Increasing the angle between them

Decreasing the angle between them

Drawing the parallelogram to represent them

Drawing the force perpendicularly

In planetary motion

Choose an answer

Angular speed remains constant

Angular momentum remains constant

Linear speed remains constant

Linear momentum remains constant

Which of the following is not an elastic collision

Choose an answer

A man jumps on a cart

A bullet embedded in a block

Colliding of two glass balls

Colliding of two tennis balls

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

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

Conservation of energy means that

Choose an answer

Energy can be destroyed but not created

Energy can be created but not destroyed

energy cannot be created and destroyed

Energy can neither be created nor destroyed

In the case of forced oscillations frequency of oscillation is.

Choose an answer

The natural damped frequency

The natural undamped frequency

The frequency of the external periodic force

Some other frequency

Which of the following quantities has a unit that can be expressed in terms of just two different SI Units.

Choose an answer

Area

Charge

Force

Current

If the K.E. of a body becomes 4 times of its initial value, the new momentum will be

Choose an answer

half

Same

Double

4 times

The amplitude of a vibrating body placed in a resistive medium.

Choose an answer

Increases exponentially with time

Decreases exponentially with time

Remains constant with time

Cannot be observed

A body is said to be in translations equilibrium, only if the vector sum of all the forces acting on it becomes.

Choose an answer

Double

Zero

Maximum

Quadruples

Which example best illustrates the conservation of electrical energy to chemical energy.

Choose an answer

Starting a car

Generating hydroelectric power

Changing an accumulator

Melting a fuse

Unit vector of a vector A describes

Choose an answer

Magnitude of a given vector

Direction of given vector

Shape of a given vector

Magnitude and direction of a given vector

Which of the following statement is correct for a particle moving in a horizontal circle with constant angular velocity.

Choose an answer

The linear momentum is constant but the K.E. varies

The K.E. is constant but the linear momentum varies

Both K.E. and linear momentum are constant

Both speed and linear velocity are constant.

Which vector gives the displacement from one point another in space.

Choose an answer

Null vector

Position vector

Unit vector

Distance vector

Which vector can be used to locate the centre of mass of a collection of particles.

Choose an answer

Null vector

Unit vector

Position vector

Distance vector

The gravitational force between two bodies does not depends upon.

Choose an answer

The product of their masses

Their separation

The sum of their masses

The constant of gravitation

Which of the following pair of physical quantities have the same dimension.

Choose an answer

Momentum and pressure

Energy and work

Linear and angular momentum

Force and surface tenstion

Express the quantity 225 x 10^-6 s using prefixes.

Choose an answer

0.225 micro second

2.25 micro second

225 micro second

2,25 neno second

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