ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

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

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Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Question # 1

Newton's first law is also called:

Question # 2

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 3

The mass of the object is a quantities measure of its

Question # 4

A typical rocket ejects the burnt gases at speeds over

Question # 5

The projectile motion is composed of

Question # 6

The discuss used by athlete has a mass of 1 kg, its weight in newton is

Question # 7

What must be changing when a body is accelerating uniformly?

Question # 8

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 9

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 10


Swimming becomes possible because of______law of motion:

Question # 11

Acceleration of a body is positive, if the velocity of the body is

Question # 12

A ball is dropped vertically down and it takes time t to reach the ground. At time t/2

Question # 13

When two protons are brought closer potential energy of both of them:

Question # 14

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

Question # 15

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Rocket engines lift a rocket from the earth surface, because hot gas with high velocity
A. Push against the air
B. React against the rocket and push it up
C. Heat up the air which lifts the rocket
D. Push against the earth
2 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
3 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
4 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
5 The dimension of linear inertia is:
A. MLT2
B. ML°T-2
C. ML°T°
D. MLT-1
6 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
A. Zero
B. Infinity
C. V
D. 2 V
7 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
8 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
9 A rocket carries its own fuel in the form of
A. liquid only
B. liquid or solid
C. liquid and solid
D. liquid or solid and oxygen
10 A change in position of a body from its initial position to its final position is known as
A. relative motion
B. displacement
C. distance
D. acceleration

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