ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

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

Sr.#	Question	Answer
1	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
2	A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:	A. 10 m B. 12 m C. 13 m D. 15 m
3	Circular motion is an example of motion in:	A. One dimension B. Two dimensions C. Three dimensions D. None of these
4	If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will	A. Increase B. Decrease C. Remain constant D. None of these
5	One radian is equal to:	A. 30.3° B. 45.3° C. 50.3° D. 57.3°
6	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
7	Centripetal acceleration is also called ________ acceleration	A. Tangential B. Radial C. Angular D. None of these
8	The useful unit of the angular displacement in SI unit is:	A. Degree B. Revolution C. Radian D. Metre
9	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
10	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. 980 N B. 580 N C. 1380 N D. Zero