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

Rate of change of momentum is called

Question # 2

The velocity of a body at any instant of its motion is known as

Question # 3

The decrease in velocity per unit time is called

Question # 4

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds

Question # 5

Acceleration of a body at any particular instant during its motion is known as

Question # 6

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 7

The time of flight of a projectile motion equal to

Question # 8

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

Question # 9

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

Question # 10

The SI units of momentum is

Question # 11

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 12

The magnitude of the displacement is a line from initial position to final position which is

Question # 13

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 14

The short distance between two points direction from its initial point to final point is called:

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Body which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
2 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
3 Acceleration produced in a body by the force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
4 The vertical component of velocity of a projectile during its motion is minimum
A. at the time of projection
B. at the highest point
C. just before hitting the plane of projection
D. all of them
5 A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?
A. 60 km/hr
B. 80 km/hr
C. 120 km/hr
D. 180 km/hr
6 The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
7 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero
8 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687
9 A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is
A. 24/13
B. 10/3
C. 3
D. 4,8
10 A 5 kg mass is falling freely, the force acting on, it will be
A. 19.6 N
B. 9.8 N
C. 5 N
D. Zero

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