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 of a body is negative if the velocity of the body is

Question # 2

Inertia mass and gravitational mass are

Question # 3

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 4

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

Question # 5

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 6

Bodies failing freely under gravity provide good example of motion under

Question # 7

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

Question # 8

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Question # 9

In the expression F x t, the force F is

Question # 10

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 11

When two protons are brought closer potential energy of both of them:

Question # 12

The vertical component of velocity of a projectile during its motion is minimum

Question # 13

The short distance between two points direction from its initial point to final point is called:

Question # 14

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 15

In the above figures, tell which set is graphs shows that a body is moving uniform velocity:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ
2 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
A. m
B. 2 m
C. 4 m
D. Infinity
3 Swimming becomes possible because of______law of motion.
A. First
B. Second
C. Third
D. None of these
4 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687
5 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
6 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
7 A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
8 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
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 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power

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