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

The linear momentum of the body is defined as

Question # 2

When brakes are applied to a fast moving car, the passenger will be thrown:

Question # 3

Slope of velocity time graph represents:

Question # 4

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 5

Bodies which falls freely under gravity provides good example of motion under:

Question # 6

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

Question # 7

A 5 kg mass is falling freely, the force acting on, it will be

Question # 8

Newton published laws of motion in his famous book "principia" in

Question # 9

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

Question # 10

The quantity F x t is called as

Question # 11

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

Question # 12

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

Question # 13

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

Question # 14

Blomass includes:

Question # 15

A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
2 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
3 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
4 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
5 To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
A. Parallel
B. Antiparallel
C. At angle 60°
D. Perpendicular to each other
6 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
7 Velocity of a body changes if
A. direction of the body changes
B. speed of the body changes
C. neither speed nor direction changes
D. either speed or direction changes
8 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
9 A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain
10 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C

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