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

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

Question # 2

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

Question # 3

The SI units of momentum is

Question # 4

The velocity of a projectile is maximum

Question # 5

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

Question # 6

Acceleration produced in a body by the force varies

Question # 7

A body whose momentum is constant must have constant

Question # 8

When body moves with increasing acceleration, its velocity time graph is a

Question # 9

Distance covered by a freely failing body n the first second of its motion will be:

Question # 10

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

Question # 11

Force is a:

Question # 12

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

Question # 13

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 14

At the top of the trajectory of a projectile the acceleration is

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A. 3 s
B. 5 s
C. 7 s
D. 9 s
3 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
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 The direction of the linear momentum is the direction of
A. speed
B. velocity
C. weight
D. none of them
6 If the objects of different masses move with the same velocity, then it is more difficult to stop the
A. lighter of the two
B. massive of the two
C. any one of them
D. both of them
7 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
A. First
B. Second
C. Third
D. None of these
8 A typical rocket consists of fuel
A. more than 60% of launch mass
B. less than 60% of launch mass
C. less than 80% of launch mass
D. more than 80% of launch mass
9 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All
10 The shortest distance between two points directed from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance

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