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

When the total displacement is divided by total time taken, we get:

Question # 2

What must be changing when a body is accelerating uniformly?

Question # 3

Which of the following statements for an object in equilibrium is not true?

Question # 4

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 5

A change in position of a body from its initial position to its final position is known as

Question # 6

Acceleration produced in a body by the force varies

Question # 7

Swimming becomes possible because of______law of motion.

Question # 8

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

Question # 9

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 10

Newton's first law is also called:

Question # 11

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

Question # 12

The path followed by the projectile is known as:

Question # 13

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

Question # 14

In the expression F x t, the force F is

Question # 15

A body whose momentum is constant must have constant

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
2 Biomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
3 The dimension of linear inertia is:
A. MLT2
B. ML0T-2
C. ML0T0
D. MLT-1
4 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ
5 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6 If two bodies of equal masses moving in the same direction collide elastically, then their velocities.
A. Are added
B. Are subtracted
C. Do not change
D. Are exchanged
7 A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when
A. Elevator is stationary
B. Elevator cable breaks and it falls freely towards earth
C. Elevator accelerates downwards
D. Elevator accelerates upward
8 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
9 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
10 In the above figures, tell which set is graphs shows that a body is moving uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (ii) and (iv)

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