ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

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ECAT Physics Chapter 5 Important MCQ's

Sr.#	Question	Answer
1	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
2	In case of planets, the necessary acceleration is provided by:	A. Gravitational force B. Coulomb force C. Frictional force D. None of these
3	INTELSAT operates at frequencies 4, 6, 11, 14 having unit of	A. KHz B. MHz C. GHz D. BHz
4	One radian is:	A. Greater than one degree B. Less than one degree C. Equal to degree D. none of these
5	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
6	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
7	Direction of motion _________ in circular motion	A. Changes off and on B. Changes continously C. Does not change D. None of them
8	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
9	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
10	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:	A. 5 rad/sec² B. -10 rav/sec² C. -10 rad/sec² D. -5 rav/sec²

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ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

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

Physics ECAT Pre Engineering Chapter 5 Circular Motion

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:

Centripetal acceleration is also called ______ acceleration:

Direction of motion_______ in circular of motion:

Which of the following pairs does not have identical dimensions?

Radian is defined as the angle subtended at the center of a circle by an arc of:

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:

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

Centripetal acceleration is also called _______ acceleration:

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

Direction of angular momentum is determined by:

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

Direction of motion _______ in circular motion

The instantaneous acceleration of a body moving with constant speed in a circle:

Conventionally the angular velocity is directed to an angle of:

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

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ECAT Physics Chapter 5 Important MCQ's

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Ahmed Qureshi

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: