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

Laws of motion are not valid in a system which is

Question # 2

One KWh is equal to:

Question # 3

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

Question # 4

The path (or trajectory) described by a projectile is

Question # 5

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

Question # 6

If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be

Question # 7

Root out the conventional source of energy:

Question # 8

A typical rocket consists of fuel

Question # 9

Work done along a closed path in a gravitational force is:

Question # 10

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 # 11

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

Question # 12

The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is

Question # 13

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

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

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
2 For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to
A. Four times
B. Thrice
C. Once
D. Twice
3 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
4 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
5 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
6 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
7 Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
A. The faster one
B. Depends on their mass
C. The slower one
D. Both will reach simultaneously
8 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
9 For a fixed force, larger is the mass of a body the
A. greater is its acceleration
B. smaller is its acceleration
C. smaller is its weight
D. zero is its acceleration
10 When brakes are applied to a fast moving car, the passenger will be thrown:
A. Forward
B. Backward
C. Downward
D. none of these

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