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

An inertial frame of reference is that frame of reference in which

Question # 2

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

Question # 3

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

Question # 4

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 5

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

Question # 6

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 7

The direction of velocity is along the direction of

Question # 8

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 # 9

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 # 10

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

Question # 11

Unit of impulse in

Question # 12

Force is a:

Question # 13

Acceleration of a body is positive, if the velocity of the body is

Question # 14

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

Question # 15

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?
A. 150 m
B. 250 m
C. 350 m
D. 400 m
2 A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2
3 A typical rocket ejects the burnt gases at speeds over
A. 400 ms-1
B. 40000m s-1
C. 40000 ms-1
D. 60000 ms-1
4 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
5 The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
6 Flight of rocket in the space is an example of
A. Newton's first law
B. Newton's third law
C. Newton's second law
D. all of them
7 If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
A. mg
B. m (g+a)
C. m (g - a)
D. 0
8 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
9 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
10 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
A. In the backward direction on the front wheel and in the forward direction on the rear wheel
B. In the forwards directions on the front wheel and in the backward direction on the rear wheel
C. In the forward direction on both the wheels
D. In the backward direction on both the wheels

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