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	The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are	3 24 126 200
2	The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec^-2comes out to be	980 N 580 N 1380 N Zero
3	If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will	Increase Decrease Remain constant None of these
4	The number of countries who manage the largest satellite system is:	3 24 126 200
5	Satellites are held in orbits around Earth by its:	Gravitational field Magnetic field Own orbital motion Own spin motion
6	Which one is related to angular motion:	Moment of a force Moment of inertia Moment of momentum None of these
7	Angular momentum is a:	vector quantity Imaginary quantity Complex Quantity Scalar Quantity
8	Direction of angular momentum is determined by:	Right hand rule Head to tail rule Left hand rule None of them
9	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:	10 m 12 m 13 m 15 m
10	Which of the following pairs does not have identical dimensions?	Torque and energy Energy and work Momentum and impulse Mass and moment of inertia
11	Moment of inertia depends upon:	Mass Selection of axis of rotation Both of them None of these
12	The center of mass of a sphere lies at:	The axis of the sphere Circumference of sphere Center of the sphere None of them
13	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
14	______ plays the same role during angular motion as played by the mass in linear motion	Torque Angular Momentum Moment of a force Moment of inertia
15	Centripetal acceleration is also called ______ acceleration	Tangential Radial Angular None of them

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