What are the uses of simple pendulum?

Answer 1

Actually the simple pendulum isn't used much any more. But in earlier times the periodicity of the pendulum was used to drive the gears of mechanical clock; like the old grandfather clock that stood in the home of the rich back in the 1800s. Because the period of a pendulum was fairly stable and constant, it made an excellent source of energy for clockworks.

But now clocks are driven by much more precise means, like crystals and atomic disintegration. And this is true in general; pendulums have been replaced by more precise means of providing periodic energy.

Answer 2

Simple pendulums are commonly used in physics education to study oscillatory motion, measure gravitational acceleration, and demonstrate principles of harmonic motion. They can also be used in timekeeping devices like grandfather clocks and metronomes. Additionally, simple pendulums are used in seismology to measure ground motion and detect earthquakes.