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

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 2

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

Question # 3

The SI units of momentum is

Question # 4

A rocket carries its own fuel in the form of

Question # 5

The time of flight of a projectile motion equal to

Question # 6

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

Question # 7

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

Question # 8

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

Question # 9

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 10

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

Question # 11

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

Question # 12

A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:

Question # 13

Earth is considered to be

Question # 14

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
2 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
3 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
4 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
5 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
6 A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
A. 10 s
B. 20 s
C. 5 s
D. 40 s
7 The projectile attains maximum horizontal range when it is projected at an angle of
A. 30°
B. 45°
C. 60°
D. 75°
8 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687
9 If the velocity time graph is a straight line parallel to time-axis, then it means that:
A. The body is moving with uniform velocity
B. The body is moving with uniform acceleration
C. The body is at rest
D. None of above
10 The motion of a body in a straight line is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension

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