The sound from a vibrating tuning sound is when the tip of its stem is placed on a wooden table than when in air because
the friction between the table and the tuning fork generates additional energy
air molecules obsorb sound wave but wood transmit sound waves
the table increases the frequency of the turning fork
a large mass of air is set into vibration by the table
Explanation
No explanation available
Video Explanation
No video available
Post your Contribution
Discussions (2)
When you strike a tuning fork, it vibrates and produces sound.
Key idea:
๐ฆ๐ผ๐๐ป๐ฑ ๐ฏ๐ฒ๐ฐ๐ผ๐บ๐ฒ๐ ๐น๐ผ๐๐ฑ๐ฒ๐ฟ ๐๐ต๐ฒ๐ป ๐บ๐ผ๐ฟ๐ฒ ๐ฎ๐ถ๐ฟ ๐ถ๐ ๐๐ถ๐ฏ๐ฟ๐ฎ๐๐ถ๐ป๐ด.
๐๐ฎ๐๐ฒ ๐ญ: ๐ง๐๐ป๐ถ๐ป๐ด ๐ณ๐ผ๐ฟ๐ธ ๐ถ๐ป ๐ฎ๐ถ๐ฟ
Only the small air around it vibrates
So sound is weak / faint
๐๐ฎ๐๐ฒ ๐ฎ: ๐ง๐๐ป๐ถ๐ป๐ด ๐ณ๐ผ๐ฟ๐ธ ๐ผ๐ป ๐๐ฎ๐ฏ๐น๐ฒ
The fork makes the table vibrate
The table is BIG โ it pushes more air particles
So:
๐ ๐ผ๐ฟ๐ฒ ๐ฎ๐ถ๐ฟ ๐๐ถ๐ฏ๐ฟ๐ฎ๐๐ฒ๐ = ๐น๐ผ๐๐ฑ๐ฒ๐ฟ ๐๐ผ๐๐ป๐ฑ
Now let's check the options:
A. Friction generates energy
Nope
Friction actually wastes energy, doesnโt amplify sound.
B. Air absorbs sound but wood transmits
Misleading
Air also transmits sound (thatโs how we hear).
C. Table increases frequency
Wrong
Frequency (pitch) stays the same.
๐. ๐ ๐น๐ฎ๐ฟ๐ด๐ฒ ๐บ๐ฎ๐๐ ๐ผ๐ณ ๐ฎ๐ถ๐ฟ ๐ถ๐ ๐๐ฒ๐ ๐ถ๐ป๐๐ผ ๐๐ถ๐ฏ๐ฟ๐ฎ๐๐ถ๐ผ๐ป ๐ฏ๐ ๐๐ต๐ฒ ๐๐ฎ๐ฏ๐น๐ฒ
YESSS 
This is exactly whatโs happening.
