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

Essential characteristic of equilibrium is

Question # 2

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 3


Swimming becomes possible because of______law of motion:

Question # 4

Ethanol (alcohol) is a type of:

Question # 5

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 # 6

The direction of velocity is along the direction of

Question # 7

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 8

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

Question # 9

The velocity of a projectile is maximum

Question # 10

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

Question # 11

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 12

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

Question # 13

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Question # 14

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C
2 If the acceleration of a body is not uniform, then velocity-time graph will be:
A. Curve
B. Straight line
C. Sphere
D. All of these
3 A the top of the trajectory of a projectile, the directions of its velocity and acceleration are
A. Perpendicular to each other
B. Parallel to each other
C. Inclined to each other at an angle of 45°
D. Anitparallel to each other
4 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
5 If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have
A. uniform deceleration
B. uniform negative acceleration
C. average acceleration
D. uniform positive acceleration
6 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
7 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
8 A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2
9 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
10 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ

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