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 area under line velocity-time graph is numerically equal to the

Question # 2

The path described by a projectile is called its

Question # 3

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 4

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

Question # 5

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 # 6

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 7

A typical rocket consumes about

Question # 8

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 9

When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts

Question # 10

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

Question # 11

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

Question # 12

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 13

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

Question # 14

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 15

In the above figures, tell which set is graphs shows that a body is moving uniform velocity:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
2 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
3 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same
4 The expression F x t is called impulse if the time 't' is
A. zero
B. very large
C. very small
D. infinite
5 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
6 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
7 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
8 The velocity of a projectile is maximum
A. at the point of projection
B. just before striking the ground
C. at none of them
D. at both of them
9 When we consider the average velocity of a body, then the body is moving in
A. straight line
B. curved path
C. may be in a straight or curved path
D. none of them
10 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time

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