Students can carry out the demonstration with the help of a lump of clay. When the fork vibrates, the ball bounces back and forth. It can be observed by lightly touching the sound of the fork with a ping-pong ball tied to a thread. If there is a box only a few centimeters away from the open end of another box, a strike on one of the tuning forks initiates a sympathetic vibration in the other one. When the students strike tuning fork, the resonance in the box results in the amplification of the sound. They need to have similar tuning forks placed at the center of the box. Resonance: When an external force or vibrating object forces another system to vibrate in an amplified vibrational pressure at a specific frequency, it is called resonance.įor the tuning fork experiment, students should have two identical wooden boxes with an open end. This phenomenon of having an adjoining or interconnected object set in vibration by another object is called forced vibration. When an object resonates, its particles vibrate and force the surrounding air and other interconnected things to vibrate. When it gets stuck, its particles lose their stability and resonates at its natural frequency. There are two parts are composed of tuning fork resonance, which are the forced vibration and resonance.įorced vibration: Most objects, including musical instruments, have their vibration fixed at their natural frequency. The tuning fork resonance is the expriment to measure the vibe of sounds.
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