Vibrations of simple pendulum in air are

When the amplitude of vibrations of a simple pendulum is increased, then its time-period :

The vibrations of a simple pendulum are also known as ____.

Amplitude of vibrations of simple pendulum is A. becomes (A)/(3) after 20 seconds. The amplitude after 60 seconds will be-

Fill in the blanks: Vibration of a simple pendulum are __________.

How do you justify energy conservation from the vibrations of a simple pendulum ?

Why are vibrations of a simple pendulum damped?

Fill in the blanks with appropriate words and write the complete statements: Sound produced by vibrations of a simple pendulum is ………….sound.