Question

define length and periodic motion​

Answer 1

Length - the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of an object.

periodic motion.- It is a motion which repeat itself in equal intervals of time.

Answer 2

Periodic Motion

If an object repeats its motion along a certain path, about a certain point, in a fixed interval of time, the motion of such an object is known as periodic motion. Examples of periodic motions are the motion of a pendulum, the motion of a spring, the vibration of a guitar string, the rotation of the Earth over its axis, the revolving of the Earth around the Sun, the revolving of the Sun around the center of the Galaxy, etc.

Length

the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of an object.

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