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

Root out of the conventional source of energy:

Question # 2

Tick the conservation force:

Question # 3

Which quantity has the same dimension as that of impulse?

Question # 4

The distance covered by a body in unit time is called.

Question # 5

A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:

Question # 6

When a body is moving on a surface, the force of friction is called

Question # 7

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

Question # 8

The time rate of change of displacement is called:

Question # 9

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 10

A body whose momentum is constant must have constant

Question # 11

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

Question # 12

A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?

Question # 13

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

Question # 14

A non-inertial frame of reference is that frame of reference in which

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is
A. 22 m
B. 6 m
C. 33 m
D. 7.8 m
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 product of force and time is called
A. acceleration
B. linear momentum
C. angular momentum
D. impulse
4 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
5 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
6 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
7 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
8 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°
9 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
10 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually

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