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

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 2

A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is

Question # 3

Dimensions of velocity are

Question # 4

Which of the following is not a projectile

Question # 5

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 6

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 7

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 8

When a person jumps off the ground, the reaction force of the ground is

Question # 9

The collision in which KE is conserved but momentum is not conserved is called:

Question # 10

When brakes are applied to a fast moving car, the passengers will be thrown:

Question # 11

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 12

Distance covered by a freely falling body in 2 sec will be

Question # 13

Linear momentum is a

Question # 14

A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:

Question # 15

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
2 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
3 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
4 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
A. 45°
B. 60°
C. 50°
D. 40°
5 A ball is dropped from a height of 4.2 meters. To what height will take it rise if there is no loss of KE after rebounding?
A. 4.2 m
B. 8.4 m
C. 12.6 m
D. none of these
6 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3.6 x 101KJ
D. 3.6 MJ
7 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
8 A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is
A. Zero
B. Infinity
C. V
D. 2 V
9 Which of the following statements for an object in equilibrium is not true?
A. The object must be at rest
B. The object can be at rest
C. The object is moving at constant speed
D. The acceleration of the object is zero
10 Distance traveled by a body falling from rest in the first, second and third second is in the ration of
A. 1 : 2 : 3
B. 1 : 3 : 5
C. 1 : 4 : 9
D. None of the above

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