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

Question # 2

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 3

In the expression F x t, the force F is

Question # 4

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 5

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 6

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

Question # 7

An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then

Question # 8

Essential characteristic of equilibrium is

Question # 9

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds

Question # 10

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

Question # 11

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

Question # 12

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 13

The decrease in velocity per unit time is called

Question # 14

The path (or trajectory) described by a projectile is

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
2 The path described by a projectile is called its
A. orbit
B. trajectory
C. range
D. distance
3 If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have
A. uniform deceleration
B. uniform negative acceleration
C. average acceleration
D. uniform positive acceleration
4 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
5 Distance covered by a freely failing body n the first second of its motion will be:
A. 4.9 m
B. 9.8 m
C. 19.6 m
D. 29.4 m
6 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
7 For a moving body, at any instant of time
A. If the body is not moving the acceleration is necessarily zero
B. If the body is slowing, the retardation is negative
C. If the body is slowing, the distance is negative
D. If displacement, velocity and acceleration at that instant are known, we can find the displacement at any given time in future
8 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
9 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
10 In the above figures, tell which set is graphs shows that a body is moving uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (ii) and (iv)

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