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

When the total displacement is divided by total time taken, we get:

Question # 2

Force is a:

Question # 3

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 4

A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is

Question # 5

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 # 6

When two protons are brought closer potential energy of both of them:

Question # 7

When a shell explodes in mid-air, its fragments fly off in

Question # 8

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

Question # 9

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

Question # 10

An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is

Question # 11

By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)

Question # 12

Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same

Question # 13

One KWh is equal to:

Question # 14

The direction of velocity is along the direction of

Question # 15

One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually
2 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
3 Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2
A. 0.064 m
B. 640 cm
C. 64 cm
D. 64 m
4 A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?
A. 60 km/hr
B. 80 km/hr
C. 120 km/hr
D. 180 km/hr
5 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time
6 The consumption of energy by a 1000 watt heter in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
7 If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be
A. 20 ms-2
B. 10 ms-2
C. 2 ms-2
D. 1 ms-2
8 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
9 If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?
A. 1 x 106
B. 2 x 106
C. 2 x 105
D. 1 x 105
10 The vertical and horizontal range will be equal id angle of projection is
A. 76°
B. 45°
C. 60°
D. 120°

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