ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

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ECAT Physics Chapter 5 Important MCQ's

Sr.#	Question	Answer
1	Direction of motion_______ in circular of motion:	A. Changes off and on B. Changes continuously C. Does not change D. None of them
2	When angular acceleration is positive, the body rotates:	A. Slower B. Slowest C. Faster D. None of these
3	When a body moves along a circular path with constant speed, it has an acceleration, which is always directed	A. Along the tangent B. Towards the centre C. Away from the centre D. None of them
4	A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:	A. Radius of the circle B. Twice the radius C. Thrice the radius D. None of these
5	One radian is equal to:	A. 30.3° B. 45.3° C. 50.3° D. 57.3°
6	A rotating wheel accelerates up to the value of 0.75 rev/sec²after 2 seconds of its start. Its angular velocity becomes:	A. 9.42 rad/sec B. 2.6 rev/sec C. 1.5 rev/sec D. Both A and C
7	A car is turning around a corner at 10 m/sec as it travels along an arc of 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
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:	A. 38 m/sec B. 3.8 m/sec C. 0.6 m/sec D. None of these
9	Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.	A. Greater than B. smaller than C. Equal to D. None of these
10	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:	A. 0.05 m B. 0.08 m C. 0.8 m D. 0.008 m

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ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

ECAT Physics Chapter 5 Circular Motion

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:

The number of countries who manage the largest satellite system is:

When a body moves along a circular path with constant speed, it has an acceleration, which is always directed

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

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

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

Centripetal force performs:

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:

Angular velocity is a:

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

The number of "Earth stations" which transmit signals to satellites and receive signals from them are:

If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will

Moment of inertia depends upon:

Direction of motion _______ in circular motion

One radian is:

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Top Scorers Of ECAT Physics Chapter 5 Circular Motion MCQ`s Test

ECAT Physics Chapter 5 Important MCQ's

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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: