Question

Q1 how does sound help us? Q2 how is sound produce? Q3 how does it travel from one place to another? Q4 how do we hear sound?

Answer 1

1. Whether driving in the car or reading books in the library , sound gives us information about the world around us. It serves two basic functions : signalling and communication.

2. Sound is produced when something vibrates. The vibrating body causes the medium around it to vibrate. Vibrations in air are called traveling longitudinal waves , which we can hear.

3. Sound is a longitudinal wave and it needs medium to travel . The sound we hear everyday travels through air. And that travels by compression and decompression of air.

4. There are 6 basic steps of how do we hear sound:

a. The sound transfers into the ear canal and causes the ear drum to move.

b. The ear drum vibrates with different sounds.

c. The sound vibrations make their way through the ossicles to the cochlea.

d. Sound vibrations make the fluid in the cochlea travel like ocean waves.

e. The vibrations in the fluid causes hair cells to move. The auditory nerves then picks up the neural signals created by the hair cells. The hair cells at one end of the cochlea transfer low pitch sound info and the hair cells at the other end of the cochlea transfer high pitch sound info.

f. The auditory nerve then transmits the signal to brain which is then translated into recognizable and meaningful sound.

Hope u have understood

Answer 2

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➟ ʜᴏᴡ ᴅᴏᴇs sᴏᴜɴᴅ ʜᴇʟᴘ ᴜs?

➛sᴏᴜɴᴅ ɪs ᴀ ᴛʏᴘᴇ ᴏғ ᴇɴᴇʀɢʏ ᴍᴀᴅᴇ ʙʏ ᴠɪʙʀᴀᴛɪᴏɴs. ᴛʜᴇsᴇ ᴠɪʙʀᴀᴛɪᴏɴs ᴄʀᴇᴀᴛᴇ sᴏᴜɴᴅ ᴡᴀᴠᴇs ᴡʜɪᴄʜ ᴍᴏᴠᴇ ᴛʜʀᴏᴜɢʜ ᴍᴇᴅɪᴜᴍs sᴜᴄʜ ᴀs ᴀɪʀ, ᴡᴀᴛᴇʀ ᴀɴᴅ ᴡᴏᴏᴅ. ᴡʜᴇɴ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴠɪʙʀᴀᴛᴇs, ɪᴛ ᴄᴀᴜsᴇs ᴍᴏᴠᴇᴍᴇɴᴛ ɪɴ ᴛʜᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴏғ ᴛʜᴇ ᴍᴇᴅɪᴜᴍ. ᴛʜɪs ᴍᴏᴠᴇᴍᴇɴᴛ ɪs ᴄᴀʟʟᴇᴅ sᴏᴜɴᴅ ᴡᴀᴠᴇs, ᴀɴᴅ ɪᴛ ᴋᴇᴇᴘs ɢᴏɪɴɢ ᴜɴᴛɪʟ ᴛʜᴇ ᴘᴀʀᴛɪᴄʟᴇs ʀᴜɴ ᴏᴜᴛ ᴏғ ᴇɴᴇʀɢʏ.

➟ ʜᴏᴡ ɪs sᴏᴜɴᴅ ᴘʀᴏᴅᴜᴄᴇᴅ?

➛ ᴠɪʙʀᴀᴛɪᴏɴs ᴀʀᴇ ᴘʀᴏᴅᴜᴄᴇᴅ ɪɴ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴡʜᴇɴ ɪᴛ ɪs sᴛʀᴜᴄᴋ. ᴠɪʙʀᴀᴛɪɴɢ ᴏʙᴊᴇᴄᴛ ɪs ᴀ sᴏᴜʀᴄᴇ ᴏғ sᴏᴜɴᴅ. ᴛʜᴇ ʀʜʏᴛʜᴍɪᴄ ᴠɪʙʀᴀᴛɪᴏɴs ᴏғ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴘʀᴏᴅᴜᴄᴇs sᴏᴜɴᴅ.

➟ ʜᴏᴡ ᴅᴏᴇs ɪᴛ ᴛʀᴀᴠᴇʟ ғʀᴏᴍ ᴏɴᴇ ᴘʟᴀᴄᴇ ᴛᴏ ᴀɴᴏᴛʜᴇʀ?

➛ᴡʜᴇɴ ᴀ ᴅʀᴜᴍ ɪs ʜɪᴛ, ᴛʜᴇ ᴀɪʀ ᴘᴀʀᴛɪᴄʟᴇs ɴᴇxᴛ ᴛᴏ ᴛʜᴇ ᴅʀᴜᴍ sᴋɪɴ ᴠɪʙʀᴀᴛᴇ ᴀɴᴅ ᴄᴏʟʟɪᴅᴇ ᴡɪᴛʜ ᴏᴛʜᴇʀ ᴘᴀʀᴛɪᴄʟᴇs, ᴀɴᴅ ᴛʜɪs ᴠɪʙʀᴀᴛɪᴏɴ ɪs ᴛʜᴇɴ ᴛʀᴀɴsᴍɪᴛᴛᴇᴅ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴀɪʀ. ᴛʜɪs ɪs ᴋɴᴏᴡɴ ᴀs ᴡᴀᴠᴇ ᴄᴏᴍᴘʀᴇssɪᴏɴ, ᴡʜɪᴄʜ ᴀʟʟᴏᴡs sᴏᴜɴᴅ ᴛᴏ ᴛʀᴀᴠᴇʟ ǫᴜɪᴄᴋʟʏ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴀɪʀ.

➟ ʜᴏᴡ ᴅᴏ ᴡᴇ ʜᴇᴀʀ sᴏᴜɴᴅ ?

➛ ᴡᴀᴛᴇʀ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ᴘʀᴇssᴜʀᴇ ᴅᴇᴛᴇʀᴍɪɴᴇ ʜᴏᴡ ғᴀʀ sᴏᴜɴᴅ ᴛʀᴀᴠᴇʟs ɪɴ ᴛʜᴇ ᴏᴄᴇᴀɴ. ᴡʜɪʟᴇ sᴏᴜɴᴅ ᴍᴏᴠᴇs ᴀᴛ ᴀ ᴍᴜᴄʜ ғᴀsᴛᴇʀ sᴘᴇᴇᴅ ɪɴ ᴛʜᴇ ᴡᴀᴛᴇʀ ᴛʜᴀɴ ɪɴ ᴀɪʀ , ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ ᴛʜᴀᴛ sᴏᴜɴᴅ ᴡᴀᴠᴇs ᴛʀᴀᴠᴇʟ ɪs ᴘʀɪᴍᴀʀɪʟʏ ᴅᴇᴘᴇɴᴅᴇɴᴛ ᴜᴘᴏɴ ᴏᴄᴇᴀɴ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ᴘʀᴇssᴜʀᴇ.

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Hope my answers are correct and will help:)♡