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

When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts

Question # 2

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

Question # 3

Acceleration of a body is negative if the velocity of the body is

Question # 4

Distance covered by a freely falling body in 2 sec will be

Question # 5

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 6

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 7

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

Question # 8

A body of mass 5 kg is acted upon by a total change n momentum will be:

Question # 9

At the top of the trajectory of a projectile the acceleration is

Question # 10

Newton published laws of motion in his famous book "principia" in

Question # 11

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?

Question # 12

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 13

The short distance between two points direction from its initial point to final point is called:

Question # 14

Body which falls freely under gravity provides good example of motion under:

Question # 15

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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)
4 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
5 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
6 A body is thrown from a height h with speed u, it hits the ground with speed V
A. The value of V is maximum if the body is thrown vertically downward
B. The value of V is maximum if the body is thrown vertically upwards
C. The value of V is minimum if the body is thrown horizontally
D. The value of V does not depend on the direction of which it is thrown
7 The velocity given to a body to go out of the influence of earth's gravity is known as:
A. Terminal velocity
B. Orbital velocity
C. Escape velocity
D. None of these
8 A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time
A. 6 s
B. 36 s
C. 38 s
D. None of these
9 When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
A. Becomes half
B. Becomes zero
C. Ramains same
D. Becomes double
10 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule

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