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 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?

Question # 2

A lift is descending at a constant speed V. A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

Question # 3

A rocket carries its own fuel in the form of

Question # 4

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 5

Laws of motion are not valid in a system which is

Question # 6

Which of the following four statements is false?

Question # 7

In equation F=ma, then mass 'm' is

Question # 8

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

Question # 9

When the surfaces are coated with a lubricant, then they

Question # 10

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 11

Root out of the conventional source of energy:

Question # 12

During the projectile motion, the horizontal component of velocity

Question # 13

The three equation of motions are useful only for

Question # 14

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

Question # 15

The vertical component of velocity of a projectile during its motion is minimum

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°
2 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
3 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
4 Newton's laws are adequate for speeds that are
A. low compared with the speed of light
B. equal to the speed of light
C. greater than the speed of light
D. all of them
5 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity
6 If d is the displacement of the body in time t, then its average velocity will be
A. Vav= d x t
B. Vav = t/d
C. Vav = d/t
D. Vav = d/t
7 Distance covered by a freely failing body n the first second of its motion will be:
A. 4.9 m
B. 9.8 m
C. 19.6 m
D. 29.4 m
8 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity
9
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
10 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687

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