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

When we consider the average velocity of a body, then the body is moving in

Question # 2

Swimming becomes possible because of______law of motion.

Question # 3

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

Question # 4

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 5

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

Question # 6

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 7

The path (or trajectory) described by a projectile is

Question # 8

A change in position of a body from its initial position to its final position is known as

Question # 9

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

Question # 10

Acceleration of a body at any particular instant during its motion is known as

Question # 11

Distance covered by a freely falling body in 2 sec will be

Question # 12

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 13

The time rate of change of displacement is called:

Question # 14

The path described by a projectile is called its

Question # 15

When a shall explodes a mid-air, the total momentum of its fragments is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
4 The displacement coincides with the path of the motion when a body moves is a
A. curved line
B. straight line
C. may be curved or straight
D. none of them
5 The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
6 If two bodies of equal masses moving in the same direction collide elastically, then their velocities.
A. Are added
B. Are subtracted
C. Do not change
D. Are exchanged
7 When a shall explodes a mid-air, the total momentum of its fragments is
A. less than the momentum of shell
B. equal to the momentum of shell
C. greater than the momentum of shell
D. none of them
8 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
9 Which of the following four statements is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
10 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work

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