ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

Question # 2

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

Question # 3

A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is

Question # 4

An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is

Question # 5

Force is a:

Question # 6

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 7

Tick the conservation force:

Question # 8

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 9

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 10

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

Question # 11

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 # 12

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

Question # 13

If the velocity time graph is a straight line parallel to time-axis, then it means that:

Question # 14

Work done along a closed path in a gravitational field is:

Question # 15

In equation F=ma, then mass 'm' is

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ECAT Class Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is
A. 120 x 10.8 N
B. 180 N
C. 720 N
D. 360 N
2 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
3 The area under line velocity-time graph is numerically equal to the
A. speed of the body
B. acceleration of the body
C. distance covered by the body
D. none of them
4 Root out the conventional source of energy:
A. Energy from blomass
B. hydroelectric energy
C. Geothermal energy
D. None of these
5 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually
6 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
7 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
8 When a shell explodes in mid-air, its fragments fly off in
A. only one direction
B. in two direction
C. different directions
D. a particular direction
9 The dimension of linear inertia is:
A. MLT2
B. ML°T-2
C. ML°T°
D. MLT-1
10 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power

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