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

Tick the conservation force:

Question # 2

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

Question # 3

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

Question # 4

Which of the following is not a projectile

Question # 5

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 6

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 7

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

Question # 8

Ethanol (alcohol) as a type of:

Question # 9

Newton's laws are adequate for speeds that are

Question # 10

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 # 11

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

Question # 12

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

Question # 13

An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then

Question # 14

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

Question # 15

During the upward motion of the projectile, the vertical component of velocity.

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
2 The velocity of a body at any instant of its motion is known as
A. average velocity
B. instantaneous velocity
C. uniform velocity
D. none of them
3 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity
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 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel
6 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
7 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
8 A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is
A. Zero
B. Infinity
C. V
D. 2 V
9 A non-inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0 or a < 0
C. v = 0
D. none of them
10 Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is
A. 22 m
B. 6 m
C. 33 m
D. 7.8 m

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