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 product of force and time is called change in:

Question # 2

When the total displacement is divided by total time taken, we get:

Question # 3

For a moving body, at any instant of time

Question # 4

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 5

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

Question # 6

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 # 7

If the objects of different masses move with the same velocity, then it is more difficult to stop the

Question # 8

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 9

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 10

A change in position of a body from its initial position to its final position is known as

Question # 11

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 12

The displacement coincides with the path of the motion when a body moves is a

Question # 13

A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is

Question # 14

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

Question # 15

If a ball comes back to its starting point after bouncing off the wall several times, then its

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s
2 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
3 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
4 If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?
A. 1 x 106
B. 2 x 106
C. 2 x 105
D. 1 x 105
5 When a shall explodes a mid-air, the total momentum of its fragments is
A. less than the momentum of shell
B. equal to the momentum of shell
C. greater than the momentum of shell
D. none of them
6 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
7 If the velocity time graph is a straight line parallel to the time-axis, then it means:
A. The body is moving with uniform velocity
B. The body is moving with uniform acceleration
C. The body is at rest
D. None of these
8 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
9 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
10 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

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