ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 2

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

Question # 3

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

Question # 4

Inertia mass and gravitational mass are

Question # 5

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 6

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 # 7

A typical rocket consumes about

Question # 8

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 9

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

Question # 10


Swimming becomes possible because of______law of motion:

Question # 11

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

Question # 12

Which one of the following is dimensionless:

Question # 13

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 14

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s2)

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is
A. 37.5 km/h
B. 10 km/h
C. 42 km/h
D. 40 km/h
2 Change in momentum is one second called.
A. Impulse
B. Force
C. Energy
D. Work
3 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
4 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
5 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6 The direction of the linear momentum is the direction of
A. speed
B. velocity
C. weight
D. none of them
7 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity
8 The dimension of linear inertia is:
A. MLT2
B. ML°T-2
C. ML°T°
D. MLT-1
9 Which of the following four statements is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
10 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

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