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

Acceleration in a body is always produced in the direction of :

Question # 2

The motion of a body in a straight line is the motion in

Question # 3

An inertial frame of reference is that frame of reference in which

Question # 4

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 5

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

Question # 6

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

Question # 7

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

Question # 8

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

Question # 9

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 # 10

The distance covered by a body in unit time is called.

Question # 11

The path described by a projectile is called its

Question # 12

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

Question # 13

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 14

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

Question # 15

The decrease in velocity per unit time is called

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Flight of rocket in the space is an example of
A. Newton's first law
B. Newton's third law
C. Newton's second law
D. all of them
2 A the top of the trajectory of a projectile, the directions of its velocity and acceleration are
A. Perpendicular to each other
B. Parallel to each other
C. Inclined to each other at an angle of 45°
D. Anitparallel to each other
3 When brakes are applied to a fast moving car, the passengers will be thrown:
A. Forward
B. Backward
C. Downward
D. None of these
4 Biomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
5 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
6 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
7 Work done along a closed path in a gravitational force is:
A. maximum
B. Minimum
C. Zero
D. Unity
8 A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
A. Both hit the ground at the same veloctiy
B. Both hit the ground at the same speed
C. The change of velocity during the path for both balls is the same
D. The change of speed during the path for both balls is the same
9 The time of flight of a projectile motion equal to
A. half of the time to reach maximum height
B. twice the time to reach maximum height
C. one fourth of time to reach maximum height
D. time to reach maximum height
10 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s

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