ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

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

Question # 2

The second law gives the relationship between

Question # 3

Essential characteristic of equilibrium is

Question # 4

Acceleration produced in a body by a force varies

Question # 5


Swimming becomes possible because of______law of motion:

Question # 6

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 7

A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

Question # 8

Which quantity has the same units as impulse

Question # 9

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

Question # 10

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

Question # 11

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 12

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 13

Acceleration produced in a body by the force varies

Question # 14

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
2 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
3 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s
4 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
5 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
6 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
7 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)
8 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
9 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)
10 Velocity of a body changes if
A. direction of the body changes
B. speed of the body changes
C. neither speed nor direction changes
D. either speed or direction changes

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