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

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

Question # 3

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Question # 4

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 5

Which quantity has the same dimension as that of impulse?

Question # 6

The motion in a plane is the motion in

Question # 7

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

Question # 8

The area under line velocity-time graph is numerically equal to the

Question # 9

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:

Question # 10

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 # 11

The motion of a body in a straight line is the motion in

Question # 12

A non-inertial frame of reference is that frame of reference in which

Question # 13

Swimming becomes possible because of______law of motion.

Question # 14

A body whose momentum is constant must have constant

Question # 15

The linear momentum of the body is defined as

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called
A. a rocket
B. an aeroplane
C. a projectile
D. a ballon
2 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
3 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
4 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
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
5 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°
6 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
7 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
8 If the objects of different masses move with the same velocity, then it is more difficult to stop the
A. lighter of the two
B. massive of the two
C. any one of them
D. both of them
9 Work done along a closed path in a gravitational force is:
A. maximum
B. Minimum
C. Zero
D. Unity
10 The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero

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