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

Work done along a closed path in a gravitational field is:

Question # 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:

Question # 3

Velocity is a

Question # 4

The decrease in velocity per unit time is called:

Question # 5

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

Question # 6

Which one of the following is dimensionless:

Question # 7

A body whose momentum is constant must have constant

Question # 8

The quantity F x t is called as

Question # 9

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

Question # 10

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 11

Flight of rocket in the space is an example of

Question # 12

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

Question # 13

The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is

Question # 14

The consumption source if energy is:

Question # 15

The second law gives the relationship between

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
2 For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to
A. Four times
B. Thrice
C. Once
D. Twice
3 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
4 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
5 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
6 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
7 Ethanol (alcohol) is a type of:
A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these
8 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
9 The motion of a body in a straight line is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
10 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same

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