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Continuous pushing at the regular time intervals will cause an increase in the motion of the pendulum.

If we push the pendulum it will move back and forth.

The pendulum works on the same principle as the swing. If the frequency of the speakers matches the vibration of the guitar, it results in sound which is called audio feedback. The amplifier sends oscillations on to the speaker.

Whereas in an electric guitar when the musician strikes the string, it oscillates and the electromagnetic device in the guitar turns this oscillation into an electric signal that is sent to the amplifier. In an acoustic guitar when you pluck a string, it vibrates and transmits the sound energy into the hollow wooden body of the guitar, making it (and the air inside) resonate and amplifying the sound (making it considerably louder). GuitarĪ guitar produces sound entirely by vibration. We call this in-sync motion “Resonance.” But, if the push given is irregular, the swing will hardly vibrate, and this out-of-sync motion will never lead to resonance, and the swing will not go higher. Once when the swing reaches its natural frequency of oscillation, a gentle push to the swing helps to maintain its amplitude due to resonance. This causes the motion of the swing to have increased amplitude so as to reach higher. The pusher has to sync with the timing of the swing. The person who is pushing the string has to match the timing of the swing. If a series of regular pushes are given to the swing, its motion can be built. When we push the swing, it starts moving forward and backwards. SwingĪ playground swing is one of the familiar examples of resonance. Let’s see the examples of resonance that occur in our everyday life. The frequency at which the second body starts oscillating or vibrating at higher amplitude is called the resonant frequency of the body. Resonance is a phenomenon in which an external force and a vibrating system force another system around it to vibrate with greater amplitude at a specified frequency of operation. Have you ever wondered how Radio picks certain frequencies so you can play your favourite channel or why does a glass break down in an orchestra concert? Have you ever felt a bridge vibrating when you walk on it? Why do you think you encounter such situations? The answer lies in the phenomenon of resonance.