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

Which of the following statements for an object in equilibrium is not true?

Question # 2

Swimming becomes possible because of______law of motion.

Question # 3

Biomass includes:

Question # 4

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

Question # 5

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

Question # 6

The time rate of change of displacement is called:

Question # 7

If the objects of different masses move with the same velocity, then it is more difficult to stop the

Question # 8

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

Question # 9

When two protons are brought closer potential energy of both of them:

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

The short distance between two points direction from its initial point to final point is called:

Question # 12

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

Question # 13

The path described by a projectile is called its

Question # 14

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 # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
2 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
3 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve
4 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
5 If the instantaneous velocity of a body does not change. the body is said to be moving with
A. average velocity
B. uniform velocity
C. instantaneous velocity
D. variable velocity
6 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
7 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
A. m
B. 2 m
C. 4 m
D. Infinity
8 The projectile attains maximum horizontal range when it is projected at an angle of
A. 30°
B. 45°
C. 60°
D. 75°
9 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
10 By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s

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