ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

Question # 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:

Question # 3

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

Question # 4

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?

Question # 5

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 # 6

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

Question # 7

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

Question # 8

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

Question # 9

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

Question # 10

Root out of the conventional source of energy:

Question # 11

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 12

A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of

Question # 13

The decrease in velocity per unit time is called

Question # 14

The three equation of motions are useful only for

Question # 15

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The three equation of motions are useful only for
A. linear motion with increasing acceleration
B. line motion with uniform acceleration
C. linear motion with zero acceleration
D. linear motion with varying acceleration
2 A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)
A. 9.8 m
B. 14.7 m
C. 4.9 m
D. 19.6 m
3 A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2
4 The second law gives the relationship between
A. mass and velocity
B. force and acceleration
C. velocity and acceleration
D. mass and weight
5 To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
A. Parallel
B. Antiparallel
C. At angle 60°
D. Perpendicular to each other
6 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
7 Ethanol (alcohol) as a type of:
A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these
8 The path followed by the projectile is known as:
A. Cycle
B. Hyperbola
C. Trajectory
D. Route
9 Slope of velocity time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
10 Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be
A. 5 N
B. 10 N
C. 15 N
D. 20 N

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