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 effect of applying a force on a moving body is to change

Question # 2

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 3

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

Question # 4

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 5

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

Question # 6

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 # 7

The three equation of motions are useful only for

Question # 8

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

Question # 9

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 10

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 # 11

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

Question # 12

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

Question # 13

Acceleration in a body is always produced in the direction of :

Question # 14

The velocity of a body at any instant of its motion is known as

Question # 15

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero
2 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
3 When we consider the average velocity of a body, then the body is moving in
A. straight line
B. curved path
C. may be in a straight or curved path
D. none of them
4 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
5 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
6 The path described by a projectile is called its
A. orbit
B. trajectory
C. range
D. distance
7 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
8 The decrease in velocity per unit time is called:
A. Variable Acceleration
B. Average Acceleration
C. Retardation
D. None of these
9 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
10 A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2

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