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

Work done along a closed path in a gravitational force is:

Question # 2

The path described by a projectile is called its

Question # 3

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

Question # 4

Ethanol (alcohol) as a type of:

Question # 5

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 # 6

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 7

The dimension of linear inertia is:

Question # 8

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

Question # 9

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

Question # 10

The quantity F x t is called as

Question # 11

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 12

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 13

A 5 kg mass is falling freely, the force acting on, it will be

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually
2 Graphs which are used to illustrate the variation of velocity of an object with time are called
A. distance time graphs
B. speed time graphs
C. velocity time graphs
D. acceleration time graphs
3 The three equation of motions are useful only for
A. linear motion with increasing acceleration
B. line motion with uniform acceleration
C. linear motion with zero acceleration
D. linear motion with varying acceleration
4 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
A. 60 kg wt
B. 72 kg wt
C. 48 kg wt
D. Zero
5 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
6 When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is
A. zero
B. negative
C. positive
D. non-existing
7 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
8 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
9 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
10 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity

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