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

One KWh is equal to:

Question # 2

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

Question # 3

At the top of the trajectory of a projectile the acceleration is

Question # 4

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

Question # 5

Which one of the following is dimensionless:

Question # 6

Unit of impulse in

Question # 7

Change in momentum is one second is called:

Question # 8

Which quantity has the same units as impulse

Question # 9

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 10

One KWh is equal to:

Question # 11

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

Question # 12

The direction of velocity is along the direction of

Question # 13

The path (or trajectory) described by a projectile is

Question # 14

Acceleration in a body is always produced in the directin of:

Question # 15

The quantity F x t is called as

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The velocity given to a body to go out of the influence of earth's gravity is known as:
A. Terminal velocity
B. Orbital velocity
C. Escape velocity
D. None of these
2 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:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
3 Acceleration of a body is negative if the velocity of the body is
A. constant
B. increasing
C. decreasing
D. none of them
4 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
5 Newton's first law is also called:
A. Law of torque
B. Law of force
C. Law of inertia
D. None of these
6 A non-inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0 or a < 0
C. v = 0
D. none of them
7 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
8 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
9 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
10 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All

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