ECAT Pre General Science Physics Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 3 Motion and Force

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 3 Motion and Force

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ECAT Pre General Science Physics Chapter 3 Motion and Force

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Question # 1

When body moves with increasing acceleration, its velocity time graph is a

Question # 2

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 3

Linear momentum is a

Question # 4

Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same

Question # 5

Which one of the following is dimensionless.

Question # 6

A non-inertial frame of reference is that frame of reference in which

Question # 7

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 8

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 9

Which quantity has the same dimension as that of impulse?

Question # 10

Work done along a closed path in a gravitational field is:

Question # 11

The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as

Question # 12

When brakes are applied to a fast moving car, the passengers will be thrown:

Question # 13

Acceleration of a body is negative if the velocity of the body is

Question # 14

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 15

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 16

When we consider the average velocity of a body, then the body is moving in

Question # 17

The effect of applying a force on a moving body is to change

Question # 18

Inertia mass and gravitational mass are

Question # 19

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 20

Swimming is based on the principle of

Question # 21

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Question # 22

Force is a:

Question # 23

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 24

Acceleration in a body is always produced in the directin of:

Question # 25

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 26

The direction of the linear momentum is the direction of

Question # 27

The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is

Question # 28

A 5 kg mass is falling freely, the force acting on, it will be

Question # 29

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

Question # 30

If the instantaneous velocity of a body does not change. the body is said to be moving with

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
2 When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts
A. In the backward direction on the front wheel and in the forward direction on the rear wheel
B. In the forwards directions on the front wheel and in the backward direction on the rear wheel
C. In the forward direction on both the wheels
D. In the backward direction on both the wheels
3 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
4 A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is
A. 3,600 N
B. 7,200 N
C. 10,000 N
D. 100,000 N
5 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
6 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
7 The three equation of motions are useful only for
A. linear motion with increasing acceleration
B. line motion with uniform acceleration
C. linear motion with zero acceleration
D. linear motion with varying acceleration
8 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s
9 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
10 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All

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