ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.#	Question	Answer
1	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
2	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
3	The number of "Earth stations" which transmit signals to satellites and receive signals from them are:	A. 3 B. 24 C. 126 D. 200
4	The useful unit of angular replacement in SI unit is:	A. Degree B. Revolution C. Radian D. Metre
5	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
6	When 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
7	Conventionally the angular velocity is directed at an angle of	A. 90° to the axis of rotation B. 30° to the axis of rotation C. 0° to the axis of rotation D. None of the above
8	Conventional the angular Velocity is Directed at an angle of:	A. 90° to the axis of rotation B. 30° to the axis of rotation C. 0° to the axis of rotation D. None of above
9	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
10	Centripetal acceleration is also called ______ acceleration:	A. Tangential B. Radial C. Angular D. None of them

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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

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

Centripetal acceleration is also called _______ acceleration:

The useful unit of the angular displacement in SI unit is:

The useful unit of angular replacement in SI unit is:

When angular acceleration is positive, the body rotates:

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

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:

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

Centripetal force performs:

Satellites are held in orbits around Earth by its:

Centripetal acceleration is also called ______ acceleration

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

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:

Angular velocity is a:

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:

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

ECAT Physics Chapter 5 Important MCQ's

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Ahmed Qureshi

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec^-2comes out to:

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: