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 ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 2

The decrease in velocity per unit time is called

Question # 3

Bodies failing freely under gravity provide good example of motion under

Question # 4

What must be changing when a body is accelerating uniformly?

Question # 5

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

Question # 6

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

Question # 7

Inertial frame of references are those frame of references which are moving with

Question # 8

The collision in which KE is conserved but momentum is not conserved is called:

Question # 9

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 10

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

Question # 11

Tick the conservative force:

Question # 12

Ethanol (alcohol) is a type of:

Question # 13

The path (or trajectory) described by a projectile is

Question # 14

An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is

Question # 15

The displacement coincides with the path of the motion when a body moves is a

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0
C. a < 0
D. all of them
2 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
3 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
4 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C
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:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
7 If the velocity time graph is a straight line parallel to time-axis, then it means that:
A. The body is moving with uniform velocity
B. The body is moving with uniform acceleration
C. The body is at rest
D. None of above
8 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
9 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
10 The area under line velocity-time graph is numerically equal to the
A. speed of the body
B. acceleration of the body
C. distance covered by the body
D. none of them

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