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

Essential characteristic of equilibrium is

Question # 2

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

Question # 3

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 4

When brakes are applied to a fast moving car, the passengers will be thrown:

Question # 5

The effect of applying a force on a moving body is to change

Question # 6

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

Question # 7

The dimension of linear inertia is:

Question # 8

The expression F x t is called impulse if the time 't' is

Question # 9

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 10

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

Question # 11

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 12

Earth is considered to be

Question # 13

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 14

The time rate of change of displacement is called:

Question # 15

Linear momentum is a

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ
2 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve
3 A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is
A. 3,600 N
B. 7,200 N
C. 10,000 N
D. 100,000 N
4 The time of flight of a projectile motion equal to
A. half of the time to reach maximum height
B. twice the time to reach maximum height
C. one fourth of time to reach maximum height
D. time to reach maximum height
5 If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be
A. 20 ms-2
B. 10 ms-2
C. 2 ms-2
D. 1 ms-2
6 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
7 A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is
A. m
B. 2 m
C. 4 m
D. Infinity
8 The second law gives the relationship between
A. mass and velocity
B. force and acceleration
C. velocity and acceleration
D. mass and weight
9 A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
10 A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
A. Both hit the ground at the same veloctiy
B. Both hit the ground at the same speed
C. The change of velocity during the path for both balls is the same
D. The change of speed during the path for both balls is the same

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