Question

Note on pressure """

Answer 1

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Pressure is the force per unit perpendicular area over which the force is applied, p=F/A. p = F / A . The SI unit of pressure is the pascal: 1Pa=1N/m2 1 Pa = 1 N/m 2 .

Answer 2

ᴘʀᴇꜱꜱᴜʀᴇ ɪꜱ ᴅᴇꜰɪɴᴇᴅ ᴀꜱ ᴛʜᴇ ᴘʜʏꜱɪᴄᴀʟ ꜰᴏʀᴄᴇ ᴇxᴇʀᴛᴇᴅ ᴏɴ ᴀɴ ᴏʙᴊᴇᴄᴛ. ᴛʜᴇ ꜰᴏʀᴄᴇ ᴀᴘᴘʟɪᴇᴅ ɪꜱ ᴘᴇʀᴘᴇɴᴅɪᴄᴜʟᴀʀ ᴛᴏ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ ᴏꜰ ᴏʙᴊᴇᴄᴛꜱ ᴘᴇʀ ᴜɴɪᴛ ᴀʀᴇᴀ. ᴛʜᴇ ʙᴀꜱɪᴄ ꜰᴏʀᴍᴜʟᴀ ꜰᴏʀ ᴘʀᴇꜱꜱᴜʀᴇ ɪꜱ ꜰ/ᴀ (ꜰᴏʀᴄᴇ ᴘᴇʀ ᴜɴɪᴛ ᴀʀᴇᴀ). ᴜɴɪᴛ ᴏꜰ ᴘʀᴇꜱꜱᴜʀᴇ ɪꜱ ᴘᴀꜱᴄᴀʟꜱ (ᴘᴀ). ᴛʏᴘᴇꜱ ᴏꜰ ᴘʀᴇꜱꜱᴜʀᴇꜱ ᴀʀᴇ ᴀʙꜱᴏʟᴜᴛᴇ, ᴀᴛᴍᴏꜱᴘʜᴇʀɪᴄ, ᴅɪꜰꜰᴇʀᴇɴᴛɪᴀʟ, ᴀɴᴅ ɢᴀᴜɢᴇ ᴘʀᴇꜱꜱᴜʀᴇ.

ᴡʜɪʟᴇ ꜱɪᴘᴘɪɴɢ ʙᴇᴠᴇʀᴀɢᴇꜱ ꜰʀᴏᴍ ᴀ ꜱᴛʀᴀᴡ, ʜᴀᴠᴇ ʏᴏᴜ ɴᴏᴛɪᴄᴇᴅ ᴛʜᴀᴛ ʏᴏᴜ ᴀᴄᴛᴜᴀʟʟʏ ꜱᴜᴄᴋ ᴛʜᴇ ᴀɪʀ ᴏᴜᴛ ᴏꜰ ᴛʜᴇ ꜱᴛʀᴀᴡ? ᴡʜɪʟᴇ ʏᴏᴜ ꜱɪᴘ ᴛʜᴇ ʙᴇᴠᴇʀᴀɢᴇ, ʏᴏᴜ’ʀᴇ ᴀᴄᴛᴜᴀʟʟʏ ᴀᴘᴘʟʏɪɴɢ ‘ᴘʀᴇꜱꜱᴜʀᴇ’.