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 projectile motion is composed of

Question # 2

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 3

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

Question # 4

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 5

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 6

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

Question # 7

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 8

Acceleration in a body is always produced in the directin of:

Question # 9

If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?

Question # 10

The product of force and time is called change in:

Question # 11

Distance covered by a freely falling body in 2 sec will be

Question # 12

The motion of a projectile is

Question # 13

Acceleration produced in a body by a force varies

Question # 14

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 # 15

Acceleration of a body is positive, if the velocity of the body is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
2 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
3 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
4 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
5 For a moving body, at any instant of time
A. If the body is not moving the acceleration is necessarily zero
B. If the body is slowing, the retardation is negative
C. If the body is slowing, the distance is negative
D. If displacement, velocity and acceleration at that instant are known, we can find the displacement at any given time in future
6 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
7 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ
8 An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called
A. a rocket
B. an aeroplane
C. a projectile
D. a ballon
9 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
10 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse

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