ECAT Pre Computer Science Chapter 5 online mcq test with answers for Physics chapter 5 (Circular Motion)

ECAT Physics Chapter 5 Circular Motion Online Test

Sr. #	Questions	Answers Choice
1	Moment of linear momentum is called.	Moment arm Moment of inertia Inertia Angular momentum
2	Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.	Disc, sphere sphere, hoop Thin rod, hoop Hoop,disc
3	Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.	Greater than smaller than Equal to None of these
4	In case of planets, the necessary acceleration is provided by:	Gravitational force Coulomb force Frictional force None of these
5	A body can have constant velocity when it follows:	A circular path A rectilinear path Trajectory of a projectile None of these
6	The instantaneous acceleration of a body moving with constant speed in a circle:	Remains constant Is called centripetal acceleration Tangential acceleration None of these
7	When a body moves with a constant speed in a circle:	No work is done on it No acceleration is produced in the body Velocity remains constant None of these
8	When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:	Zero Its average velocity Its angular displacement None of these
9	The angular speed of a particle moving along a circular path is 5 Pie rad sec^-1, Its period of motion is:	2.5 sec 0.06 sec 15.7 sec 0.4 sec
10	Angular velocity is a:	Scalar quantity Vector quantity Complex quantity None of these
11	Circular motion is an example of motion in:	One dimension Two dimensions Three dimensions None of these
12	The useful unit of the angular displacement in SI unit is:	Degree Revolution Radian Metre
13	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:	Radius of the circle Twice the radius Thrice the radius None of these
14	A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:	49 rad/sec<sup>2</sup> 1 rad/sec<sup>2</sup> 0.16 rev/sec<sup>2</sup> Both A and C Both B and C
15	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:	1 m 5 m 10 m 15 m

Download This Set