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

During the projectile motion, the horizontal component of velocity

Question # 2

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 3

The decrease in velocity per unit time is called

Question # 4

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

Question # 5

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

Question # 6

When a body is moving on a surface, the force of friction is called

Question # 7

The vertical and horizontal range will be equal id angle of projection is

Question # 8

Which of the following is not a projectile

Question # 9

An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is

Question # 10

The discuss used by athlete has a mass of 1 kg, its weight in newton is

Question # 11

Bodies failing freely under gravity provide good example of motion under

Question # 12

Swimming becomes possible because of______law of motion.

Question # 13

Angular momentum

Question # 14

A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of

Question # 15

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is
A. 1200 m
B. 0.33 km
C. 3.33 km
D. 33 km
2 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
A. a = M/mv
B. a = mM/v
C. a = mv/M
D. a = v/mm
3 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
4 A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is
A. 24/13
B. 10/3
C. 3
D. 4,8
5 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
6 Earth is considered to be
A. a non-inertial frame
B. an inertial frame
C. an accelerated frame
D. none of the above
7 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
8 A ball is dropped vertically down and it takes time t to reach the ground. At time t/2
A. The ball had covered exactly half the distance
B. The velocity of the ball was V/3 where V is the velocity when it reached the ground
C. The ball had covered less than half the distance
D. The ball had covered more than half the distance
9 A projectile on its path gets divided into two pieces at its highest point. Which is true?
A. Momentum increases
B. Momentum decreases
C. Kinetic energy increases
D. Kinetic energy decreases
10 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero

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