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

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Question # 2

The linear momentum of the body is defined as

Question # 3

Biomass includes:

Question # 4

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 # 5

During the projectile motion, the horizontal component of velocity

Question # 6

The shortest distance between two points directed from its initial point to final point is called:

Question # 7

Swimming is based on the principle of

Question # 8

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

Question # 9

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 10

Swimming becomes possible because of______law of motion.

Question # 11

When we consider the average velocity of a body, then the body is moving in

Question # 12

Laws of motion are not valid in a system which is

Question # 13

A body whose momentum is constant must have constant

Question # 14

A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

Question # 15

Unit of impulse in

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 According to the law of conservation of linear momentum, the total linear momentum of an isolated system
A. increases
B. decreases with time
C. remains constant
D. none of them
3 If two bodies of equal masses moving in the same direction collide elastically, then their velocities.
A. Are added
B. Are subtracted
C. Do not change
D. Are exchanged
4 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
5 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
6 When the surfaces are coated with a lubricant, then they
A. Stick to each other
B. Slide upon each other
C. Roll upon each other
D. None of these
7 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel
8 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?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
9 If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?
A. 1 x 106
B. 2 x 106
C. 2 x 105
D. 1 x 105
10 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
A. First
B. Second
C. Third
D. None of these

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