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

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

Question # 2

The path described by a projectile is called its

Question # 3

The dimension of linear inertia is:

Question # 4

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

Question # 5

The vertical and horizontal range will be equal id angle of projection is

Question # 6

Root out the conventional source of energy:

Question # 7

During the projectile motion, the horizontal component of velocity

Question # 8

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

Question # 9

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 # 10

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

Question # 11

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

Question # 12

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 13

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 14

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 15

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
2 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them
3 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
4 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
5 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
6 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C
7 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
8 Swimming becomes possible because of______law of motion.
A. First
B. Second
C. Third
D. None of these
9 A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when
A. Elevator is stationary
B. Elevator cable breaks and it falls freely towards earth
C. Elevator accelerates downwards
D. Elevator accelerates upward
10 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero

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