John's bedroom windows shake when crackers are burst near his house. Which of these scientific facts explain why this happens?
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Answers
John's bedroom windows shake when crackers are burst near his house because of the shock waves.
- Shock waves refer to strong waves formed due to a sudden increase in pressure.
- These waves result in strong vibrations that affect the things around them.
- On bursting crackers, there is a small explosion that disturbs the air and creates a shockwave of sound.
- This wave moves at a very fast pace and causes loud sounds and shaking of windows.
The windows shake due to the vibrations of sound produced by bursting of crackers.
•We know that, energy can neither be created or destroyed in a reaction and the energy just changes its form.
•Bursting of crackers is one such phenomenon where the energy that has been supplied in the form of heat gets subsequently converted into, light, sound and small parts get dissipated as heat loss.
•The sound produced on the bursting of crackers travelled as waves and their vibrations interacted with the window causing it to shake.
•Certain materials, like glass are more vulnerable to sounds due to their molecular structures . In glass, the molecules are quite loosely arranged compared to solids, as glass is a super cooled liquid.
•Another example is when the glass shatters as the opera singer hits a high note.