Diam lah chibai (Sounds)

Question 1

Sound wave type

Answer 1

Longitudinal waves

Question 2

Can sound travel in vacuum

Answer 2

No you fucking idiot

Question 3

How is sound produced

Answer 3

By a 𝕧𝕚𝕓𝕣𝕒𝕥𝕚𝕟𝕘 𝕤𝕠𝕦𝕣𝕔𝕖 placed in a medium

Question 4

How does sound propagates(travel)

Answer 4

As alternating ᴘʀᴇꜱꜱᴜʀᴇ, causing local regions of 𝐜𝐨𝐦𝐩𝐫𝐞𝐬𝐬𝐢𝐨𝐧 and 𝔯𝔞𝔯𝔢𝔣𝔯𝔞𝔠𝔱𝔦𝔬𝔫

Question 5

Ape tu 𝐜𝐨𝐦𝐩𝐫𝐞𝐬𝐬𝐢𝐨𝐧

Answer 5

A region where air pressure is ʜɪɢʜᴇʀ ᴛʜᴀɴ ᴛʜᴇ ꜱᴜʀʀᴏᴜɴᴅɪɴɢ

Question 6

Ape tu 𝔯𝔞𝔯𝔢𝔣𝔯𝔞𝔠𝔱𝔦𝔬𝔫

Answer 6

A region where air pressure is 𝔩𝔬𝔴𝔢𝔯 𝔱𝔥𝔞𝔫 𝔱𝔥𝔢 𝔰𝔲𝔯𝔯𝔬𝔲𝔫𝔡𝔦𝔫𝔤

Question 7

Sound travel speed ( ascending )

Answer 7

gas, Liquid, SOLID

Question 8

Sound travel speed ( descending )

Answer 8

SOLID, Liquid, gas

Question 9

Why sound no work in vacuum

Answer 9

There is no particle to vibrate to transmit sound

Question 10

How sound gets transmitted

Answer 10

By the vibration of particles that transmit sound energy to other adjacent particles

Question 11

Relatively to 𝓹𝓲𝓽𝓬𝓱

Answer 11

frequency (f) is related to 𝓹𝓲𝓽𝓬𝓱

[High 𝓹𝓲𝓽𝓬𝓱 = High frequency]

Question 12

Relativity to 𝗟𝗢𝗨𝗗𝗡𝗘𝗦𝗦

Answer 12

amplitude (height of wave) is related to 𝗟𝗢𝗨𝗗𝗡𝗘𝗦𝗦

[High 𝗟𝗢𝗨𝗗𝗡𝗘𝗦𝗦 = Hight amplitude]

Question 13

Why is echo always softer than original

Answer 13

Energy is lost as it travels back to the ear

more distance covered, takes longer time

Question 14

Speed formula

Answer 14

Speed = distance/time

Question 15

Whats ultrasound

Answer 15

Sounds higher than the upper limit of range of human hearing ( >20 000 Hz)

Question 16

Use of ultrasound

Answer 16

• Checking of internal structure problems (crack or cavities)
• Use of sonogram ( see foetus )