B2 High-Intermediate US 35 Folder Collection
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Topic: Forced Vibrations.
Why does a guitar have a hollow box?
To keep clothes while traveling.
Not at all.
Wait. I will explain.
Whenever we strike an object, it vibrates.
Sometimes, these vibrations influence other objects to vibrate.
The vibrations which take place under the
influence of an external periodic force are called forced vibrations.

So, whenever I see delicious food, my stomach starts to vibrate.
Is this a type of forced vibration?
Please concentrate.
A guitar has a hollow box which holds quite
a huge volume of air.

Now, when we strike its string, it starts
to vibrate.

These vibrations influence the air in the
hollow box, producing forced vibrations in them.

Now we know that vibrations in air produce
sound.

Hence, as a huge volume of air is vibrating,
the sound produced is louder.

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Forced Vibrations - Why does a guitar have a hollow box? | #aumsum

35 Folder Collection
AumSum published on April 16, 2019
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