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 direction of the linear momentum is the direction of

Question # 2

Which quantity has the same dimension as that of impulse?

Question # 3

When we consider the average velocity of a body, then the body is moving in

Question # 4

A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:

Question # 5

Ethanol (alcohol) is a type of:

Question # 6

The velocity of a projectile is maximum

Question # 7

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:

Question # 8

A rocket carries its own fuel in the form of

Question # 9

The linear momentum of the body is defined as

Question # 10

Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same

Question # 11

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

Question # 12

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 13

In the expression F x t, the force F is

Question # 14

A non-inertial frame of reference is that frame of reference in which

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
2 When a person jumps off the ground, the reaction force of the ground is
A. greater than the weight of the person
B. smaller than the weight of the person
C. equal to the weight of the person
D. zero
3 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
4 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
5 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
6 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
7 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
A. First
B. Second
C. Third
D. None of these
8 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)
9 Distance covered by a freely falling body in 2 sec will be
A. 4.9 m
B. 19.6 m
C. 29.2 m
D. 44.1 m
10 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°

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