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

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

Question # 2

During the upward motion of the projectile, the vertical component of velocity.

Question # 3

An inertial frame of reference is that frame of reference in which

Question # 4

The motion of a projectile is

Question # 5

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

Question # 6

One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:

Question # 7

The time of flight of a projectile motion equal to

Question # 8

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 9

The shortest distance between two points directed from its initial point to final point is called:

Question # 10

The expression F x t is called impulse if the time 't' is

Question # 11

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Question # 12

Flight of rocket in the space is an example of

Question # 13

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

Question # 14

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 15

The linear momentum of the body is defined as

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 In the above figures, tell which set is graphs shows that a body is moving uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (ii) and (iv)
4 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:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2
5 If the acceleration of a body is not uniform, then velocity-time graph will be:
A. Curve
B. Straight line
C. Sphere
D. All of these
6 According to the law of conservation of linear momentum, the total linear momentum of an isolated system
A. increases
B. decreases with time
C. remains constant
D. none of them
7 A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
A. 0.15 x 10-3Ns
B. 0.98 x 10-3Ns
C. 1.5 x 10-3Ns
D. 2.5 x 10-3Ns
8 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
9 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
10 If the instantaneous velocity of a body does not change. the body is said to be moving with
A. average velocity
B. uniform velocity
C. instantaneous velocity
D. variable velocity

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