GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following describes rotation?
A
Moving in a straight line.
B
Moving around another object.
C
Moving around in place in a circle.
D
None of the above
Explanation: 

Detailed explanation-1: -Rotation describes the circular motion of an object around its center. There are different ways things can rotate. A very familiar kind of rotation is when a spherical, three-dimensional object turns around an invisible line inside its center. This center is called an axis .

Detailed explanation-2: -These rotations are called precession, nutation, and intrinsic rotation.

Detailed explanation-3: -The two fundamental concepts which are studied in circular motion are rotation and revolution. While rotation means the movement in a circle round an axis, revolution is when an object moves in a circular path around another object or center.

Detailed explanation-4: -The motion of the wheel, gears, motors, etc. is rotational motion. The motion of the blades of the helicopter is also rotatory motion. A door, swiveling on its hinges as you open or close it. A spinning top, the motion of a Ferris wheel in an amusement park.

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