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

Earth is considered to be

Question # 2

The linear momentum of the body is defined as

Question # 3

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

Question # 4

The discuss used by athlete has a mass of 1 kg, its weight in newton is

Question # 5

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 # 6

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

Question # 7

Acceleration in a body is always produced in the directin of:

Question # 8

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

Question # 9

When body moves with increasing acceleration, its velocity time graph is a

Question # 10

If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?

Question # 11

Essential characteristic of equilibrium is

Question # 12

The path described by a projectile is called its

Question # 13

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If the velocity time graph is a straight line parallel to time-axis, then it means that:
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 above
2 The decrease in velocity per unit time is called
A. deceleration
B. acceleration
C. uniform acceleration
D. variable acceleration
3 Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
A. The faster one
B. Depends on their mass
C. The slower one
D. Both will reach simultaneously
4 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same
5 A typical rocket consists of fuel
A. more than 60% of launch mass
B. less than 60% of launch mass
C. less than 80% of launch mass
D. more than 80% of launch mass
6 If the values of instantaneous and average velocities are equal, the body is said to be moving with
A. uniform acceleration
B. uniform speed
C. variable velocity
D. uniform velocity
7 A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
A. 0.15 x 10-3Ns
B. 0.98 x 10-3Ns
C. 1.5 x 10-3Ns
D. 2.5 x 10-3Ns
8 Newton's laws are adequate for speeds that are
A. low compared with the speed of light
B. equal to the speed of light
C. greater than the speed of light
D. all of them
9 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
10 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

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