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

Change in momentum is one second is called:

Question # 2

A typical rocket ejects the burnt gases at speeds over

Question # 3

Swimming is based on the principle of

Question # 4

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 5

Laws of motion are not valid in a system which is

Question # 6

Earth is considered to be

Question # 7

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 8

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

Question # 9

The three equation of motions are useful only for

Question # 10

Force is a:

Question # 11

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 # 12

The projectile attains maximum horizontal range when it is projected at an angle of

Question # 13

Root out the conventional source of energy:

Question # 14

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

Question # 15


Swimming becomes possible because of______law of motion:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The motion of a projectile is
A. one dimension
B. two dimension
C. three dimension
D. all of them
2 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
3 When the surfaces are coated with a lubricant, then they
A. Stick to each other
B. Slide upon each other
C. Roll upon each other
D. None of these
4 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
5 A ball is dropped vertically down and it takes time t to reach the ground. At time t/2
A. The ball had covered exactly half the distance
B. The velocity of the ball was V/3 where V is the velocity when it reached the ground
C. The ball had covered less than half the distance
D. The ball had covered more than half the distance
6 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
7 Acceleration produced in a body by a force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
8 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
9 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
10 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time

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