ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

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

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ECAT Physics Chapter 5 Circular Motion

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Question # 1

Conventional the angular Velocity is Directed at an angle of:

Question # 2

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

Question # 3

A stone tied to the end of a 20 cm long string is whirled in a horizontal circle. If centripetal acceleration is 9.8 m/sec2, then its angular velocity is rad/sec is:

Question # 4

The rear wheels of an automobile are rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is:

Question # 5

Centripetal acceleration is also called ______ acceleration:

Question # 6

Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.

Question # 7

______ plays the same role during angular motion as played by the mass in linear motion

Question # 8

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 # 9

Direction of motion_______ in circular of motion:

Question # 10

Centripetal acceleration is also called _______ acceleration:

Question # 11

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

Question # 12

In case of planets, the necessary acceleration is provided by:

Question # 13

Moment of inertia depends upon:

Question # 14

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:

Question # 15

Direction of motion _________ in circular motion

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m
2 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
3 Which one is related to angular motion:
A. Moment of a force
B. Moment of inertia
C. Moment of momentum
D. None of these
4 A body can have constant velocity when it follows:
A. A circular path
B. A rectilinear path
C. Trajectory of a projectile
D. None of these
5 A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:
A. 1 m
B. 5 m
C. 10 m
D. 15 m
6 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
7 The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
A. 3
B. 24
C. 126
D. 200
8 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:
A. 8.1 X 107N
B. 625 N
C. 6250 N
D. None of these
9 Centripetal acceleration is also called ______ acceleration:
A. Tangential
B. Radial
C. Angular
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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