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

The velocity of a body at any instant of its motion is known as

Question # 2

If d is the displacement of the body in time t, then its average velocity will be

Question # 3

In the expression F x t, the force F is

Question # 4

Acceleration produced in a body by the force varies

Question # 5

A non-inertial frame of reference is that frame of reference in which

Question # 6

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

Question # 7

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 8

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 9

Rate of change of momentum is called

Question # 10

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds

Question # 11

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

Question # 12

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 13

A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is

Question # 14

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

Question # 15

Ethanol (alcohol) is a type of:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them
2 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?
A. 4.2 m
B. 8.4
C. 12.6
D. None of these
3 The dimension of linear inertia is:
A. MLT2
B. ML°T-2
C. ML°T°
D. MLT-1
4 For a fixed force, larger is the mass of a body the
A. greater is its acceleration
B. smaller is its acceleration
C. smaller is its weight
D. zero is its acceleration
5 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
6 When the total displacement is divided by total time taken, we get:
A. Velocity
B. Average speed
C. Average velocity
D. None of these
7 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
A. Unequal
B. Exactly equal
C. Roughly equal
D. Zero
8 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
9 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
10 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle

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