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 rocket carries its own fuel in the form of

Question # 2

The product of force and time is called change in:

Question # 3

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

Question # 4

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

Question # 5

A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is

Question # 6

The mass of the object is a quantities measure of its

Question # 7

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

Question # 8

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 9

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 10

The motion of a body in a straight line is the motion in

Question # 11

A typical rocket ejects the burnt gases at speeds over

Question # 12

Velocity is a

Question # 13

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

Question # 14

If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be

Question # 15

Force is a:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Distance traveled by a body falling from rest in the first, second and third second is in the ration of
A. 1 : 2 : 3
B. 1 : 3 : 5
C. 1 : 4 : 9
D. None of the above
2 An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called
A. a rocket
B. an aeroplane
C. a projectile
D. a ballon
3 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)
4 Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be
A. 5 N
B. 10 N
C. 15 N
D. 20 N
5 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
6 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
7 A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)
A. 1.0 kg wt
B. 2.0 kg wt
C. 0.5 kg wt
D. Zero
8 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve
9 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
10 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

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