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 slopes of the tangent at any point on the curve gives the value of the

Question # 2

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

Question # 3

The decrease in velocity per unit time is called:

Question # 4

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

Question # 5

Root out of the conventional source of energy:

Question # 6

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 7

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

Question # 8

When brakes are applied to a fast moving car, the passenger will be thrown:

Question # 9

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 # 10

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 11

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 12

The time rate of change of displacement is called:

Question # 13

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

Question # 14

What must be changing when a body is accelerating uniformly?

Question # 15

The path (or trajectory) described by a projectile is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called
A. a rocket
B. an aeroplane
C. a projectile
D. a ballon
2 Distance covered by a freely failing body n the first second of its motion will be:
A. 4.9 m
B. 9.8 m
C. 19.6 m
D. 29.4 m
3 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
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
A. 20 ms-2
B. 10 ms-2
C. 2 ms-2
D. 1 ms-2
5 Work done along a closed path in a gravitational force is:
A. maximum
B. Minimum
C. Zero
D. Unity
6 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
7 Body which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
8 When the total displacement is divided by total time taken, we get:
A. Velocity
B. Average speed
C. Average velocity
D. None of these
9 If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
A. different values
B. same values
C. zero valves
D. constant valves
10 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg

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