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

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 2

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 3

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

Question # 4

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 5

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

Question # 6

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 # 7

For a moving body, at any instant of time

Question # 8

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 9

The horizontal range of projectile, at a certain place, depends upon

Question # 10

Velocity is a

Question # 11

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 12

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

Question # 13

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 14

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

Question # 15

When body moves with increasing acceleration, its velocity time graph is a

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?
A. 4.2 m
B. 8.4
C. 12.6
D. None of these
2 Root out the conventional source of energy:
A. Energy from blomass
B. hydroelectric energy
C. Geothermal energy
D. None of these
3 Inertial frame of references are those frame of references which are moving with
A. increasing velocity
B. decreasing velocity
C. constant velocity
D. all of them
4 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
5 If a ball comes back to its starting point after bouncing off the wall several times, then its
A. total displacement is zero
B. average velocity is zero
C. none of them
D. both of them
6 Bodies failing freely under gravity provide good example of motion under
A. non-uniform acceleration
B. uniform acceleration
C. variable acceleration
D. increasing acceleration
7 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
8
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
9 In above figures, tell which set of graphs shows that a body is moving with uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
10 The dimension of linear inertia is:
A. MLT2
B. ML0T-2
C. ML0T0
D. MLT-1

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