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

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 2

Ethanol (alcohol) as a type of:

Question # 3

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

Question # 4

Laws of motion are not valid in a system which is

Question # 5

The magnitude of the displacement is a line from initial position to final position which is

Question # 6

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?

Question # 7

The direction of the acceleration is the same as that of

Question # 8

The area under line velocity-time graph is numerically equal to the

Question # 9

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 # 10

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 11

The decrease in velocity per unit time is called:

Question # 12

Dimensions of velocity are

Question # 13

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 14


Swimming becomes possible because of______law of motion:

Question # 15

If the velocity time graph is a straight line parallel to time-axis, then it means that:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Biomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
2 The path followed by the projectile is known as:
A. Cycle
B. Hyperbola
C. Trajectory
D. Route
3 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
4 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
5 A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A. 3 s
B. 5 s
C. 7 s
D. 9 s
6 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
7 The expression F x t is called impulse if the time 't' is
A. zero
B. very large
C. very small
D. infinite
8 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero
9 The time rate of change of displacement is called:
A. Time
B. Acceleration
C. Speed
D. Velocity
10 If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be
A. Unequal
B. Exactly equal
C. Roughly equal
D. Zero

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