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

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 2

The decrease in velocity per unit time is called

Question # 3

The direction of velocity is along the direction of

Question # 4

Slope of velocity time graph represents:

Question # 5

At the top of the trajectory of a projectile the acceleration is

Question # 6

A typical rocket consists of fuel

Question # 7

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 # 8

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Question # 9

When the surfaces are coated with a lubricant, then they

Question # 10

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 11

The artillery shells travel along parabolic paths under the influence of

Question # 12

One KWh is equal to:

Question # 13

Change in momentum is one second called.

Question # 14

The path (or trajectory) described by a projectile is

Question # 15

The motion of a projectile is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time
2 The velocity of a body at any instant of its motion is known as
A. average velocity
B. instantaneous velocity
C. uniform velocity
D. none of them
3 What must be changing when a body is accelerating uniformly?
A. the force acting on a body
B. the velocity of the body
C. the mass of the body
D. the speed of the body
4 A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is
A. 17 m/s
B. 33 m/s
C. 17.5 m/s
D. none
5 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
6 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
7 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
8 A change in position of a body from its initial position to its final position is known as
A. relative motion
B. displacement
C. distance
D. acceleration
9 A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is
A. 2100 m/s2
B. 1400 m/s2
C. 700 m/s2
D. 400 m/s2
10 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

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