ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion

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Physics ECAT Pre Engineering Chapter 5 Circular Motion

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Question # 1

Einstein's theory about gravity if better than Newton's because it gave explanation of:

Question # 2

An axis of rotation

Question # 3

A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is

Question # 4

Moment of inertia depends upon:

Question # 5

A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:

Question # 6

When a body moves with a constant speed in a circle:

Question # 7

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Question # 8

The useful unit of angular replacement in SI unit is:

Question # 9

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec-2comes out to be

Question # 10

Direction of motion _________ in circular motion

Question # 11

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of

Question # 12

A rotating body tends to be slower, when its angular acceleration is:

Question # 13

A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:

Question # 14

Circular motion is an example of motion in:

Question # 15

One radian is:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
2 Einstein's theory about gravity if better than Newton's because it gave explanation of:
A. Inverse square law
B. Bending of light
C. Both A and B
D. None of above
3 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
4 The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec
5 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
6 When a body moves with a constant speed in a circle:
A. No work is done on it
B. No acceleration is produced in the body
C. Velocity remains constant
D. None of these
7 A stone is tied to the end of a 20 cm along string is whirled in a horizontal circle.
if centripetal acceleration is 9.8 m/sec2, then its angular velocity in rad/sec is:
A. 22/7
B. 7
C. 14
D. 21
8 The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
A. 3
B. 24
C. 126
D. 200
9 When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
A. Along the tangent
B. Toward the centre
C. Away from the centre
D. None of them
10 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them

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  • Ahmed Qureshi

    Ahmed Qureshi

    14 Feb 2018

    wt

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