ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

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

Question # 2

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 3

The decrease in velocity per unit time is called:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The shortest distance between two points directed from its initial point to final point is called:

Question # 11

An inertial frame of reference is that frame of reference in which

Question # 12

Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be

Question # 13

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 14

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 15

Acceleration of a body is negative if the velocity of the body is

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ECAT Class Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a force is applied on a body, several effects are possible Which of the following effect could not occur?
A. the body rotates
B. the body speeds up
C. the mass of the body decreases
D. the body changes its direction
2 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
3 If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
A. mg
B. m (g+a)
C. m (g - a)
D. 0
4 Newton's first law is also called:
A. Law of torque
B. Law of force
C. Law of inertia
D. None of these
5 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
6 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
7 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
8 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
9 The shortest distance between two points directed from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
10 The velocity given to a body to go out of the influence of earth's gravity is known as:
A. Terminal velocity
B. Orbital velocity
C. Escape velocity
D. None of these

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