what is measurement? why do we need to measure quantities?
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measuring a physical quantity we define the properties of a material which the physical quantity is associated with.
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ᎪղՏωᎬя᭄
“ᴍᴇᴀsᴜʀᴇᴍᴇɴᴛ” ɪs ᴛʜᴇ ᴀᴄᴛ ᴏғ ᴅᴇᴛᴇʀᴍɪɴɪɴɢ ᴀ ᴛᴀʀɢᴇᴛ's sɪᴢᴇ, ʟᴇɴɢᴛʜ, ᴡᴇɪɢʜᴛ, ᴄᴀᴘᴀᴄɪᴛʏ, ᴏʀ ᴏᴛʜᴇʀ ᴀsᴘᴇᴄᴛ. ... ᴛᴏ ᴜsᴇᴍᴇᴀsᴜʀᴇᴍᴇɴᴛ ᴛᴏᴏʟs ᴀs ɴᴇᴄᴇssᴀʀʏ. ɪᴛ ɪs ᴀʟsᴏ ᴀᴘᴘʀᴏᴘʀɪᴀᴛᴇ ᴛᴏ sᴀʏ ᴛʜᴀᴛ ᴍᴇᴀsᴜʀᴇᴍᴇɴᴛ ɪs ᴅᴏɴᴇ ʙʏ ᴀ ᴡᴏʀᴋᴇʀ ᴜsɪɴɢ ᴀᴍᴇᴀsᴜʀᴇᴍᴇɴᴛ sʏsᴛᴇᴍ, ᴀɴᴅ ɪɴsᴛʀᴜᴍᴇɴᴛᴀᴛɪᴏɴ ɪs ᴅᴏɴᴇ ʙʏ ᴀ ᴛᴇᴄʜɴɪᴄɪᴀɴ. ʙʏ ᴍᴇᴀsᴜʀɪɴɢ ᴀ ᴘʜʏsɪᴄᴀʟ ǫᴜᴀɴᴛɪᴛʏ ᴡᴇ ᴅᴇғɪɴᴇ ᴛʜᴇ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ ᴀ ᴍᴀᴛᴇʀɪᴀʟ ᴡʜɪᴄʜ ᴛʜᴇ ᴘʜʏsɪᴄᴀʟ ǫᴜᴀɴᴛɪᴛʏ ɪs ᴀssᴏᴄɪᴀᴛᴇᴅ ᴡɪᴛʜ.
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