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

Velocity is a

Question # 2

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

Question # 3

A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is

Question # 4

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

Question # 5

The decrease in velocity per unit time is called

Question # 6

The expression F x t is called impulse if the time 't' is

Question # 7

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 8

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 9

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

Question # 10

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 11

The projectile motion is composed of

Question # 12

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

Question # 13

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

Question # 14

A ball is dropped vertically down and it takes time t to reach the ground. At time t/2

Question # 15

A body whose momentum is constant must have constant

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is
A. 120 x 10.8 N
B. 180 N
C. 720 N
D. 360 N
2 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them
3 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
4 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
5 If a ball comes back to its starting point after bouncing off the wall several times, then its
A. total displacement is zero
B. average velocity is zero
C. none of them
D. both of them
6 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
7 A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
A. Both hit the ground at the same veloctiy
B. Both hit the ground at the same speed
C. The change of velocity during the path for both balls is the same
D. The change of speed during the path for both balls is the same
8 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero
9 A 5 kg mass is falling freely, the force acting on, it will be
A. 19.6 N
B. 9.8 N
C. 5 N
D. Zero
10 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687

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