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 body of mass 5 kg is acted upon by a total change n momentum will be:

Question # 2

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

Question # 3

Acceleration of a body is positive, if the velocity of the body is

Question # 4

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 5

Angular momentum

Question # 6

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Question # 7

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 8

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

Question # 9

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 10

Distance covered by a freely failing body n the first second of its motion will be:

Question # 11

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 12

The magnitude of the displacement is a line from initial position to final position which is

Question # 13

Acceleration produced in a body by a force varies

Question # 14

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 15

During the upward motion of the projectile, the vertical component of velocity.

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
A. 0.15 x 10-3Ns
B. 0.98 x 10-3Ns
C. 1.5 x 10-3Ns
D. 2.5 x 10-3Ns
2 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
3 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
4 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?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
5 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
6 The three equation of motions are useful only for
A. linear motion with increasing acceleration
B. line motion with uniform acceleration
C. linear motion with zero acceleration
D. linear motion with varying acceleration
7 Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is
A. 45°
B. 60°
C. 50°
D. 40°
8 For a fixed force, larger is the mass of a body the
A. greater is its acceleration
B. smaller is its acceleration
C. smaller is its weight
D. zero is its acceleration
9 The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
10 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°

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