Volume
What is volume?- Volume is a measure of the space occupied by a substance.
- It's SI UNIT is cubic metre.
Here are some formulas for finding the volume of regular-shaped solid objects:
(i)Cube:V=lxlxl
(ii)Cuboid:V=lxbxh
Here are some instruments for measuring volume of liquids:
- Measuring Cylinders
- Burette
- Pipette
- Measuring Flask
- Measuring Cylinder has an accuracy of 1 cubic centimetre.(various volumes)
- Burette has an accuracy of 0.1 cubic centimetre.(to a maximum of 25 cubic centimetre to 50 cubic centimetre)
- Pipette has a fixed volume of 25 cubic centimetre or 50 cubic centimetre.
- Measuring Flask has a fixed volume of 250 cubic centimetre or 500 cubic centimetre.
Here are some other tools used for measuring the volume of liquids:
Meniscus Reading:
(i) The meniscus of most liquids curve downwards.
- The correct way to read the meniscus is to position the eye at the same level as the meniscus or in other words, to read the measurement at eye level.
- The mark corresponding to the bottom of the meniscus is taken as the reading.
(ii)The meniscus of mercury curve upwards.
- The correct way to read the meniscus is to position the eye at the same level as the meniscus or in other words, to read it at eye level.
- The mark corresponding to the top of the meniscus is taken as the reading.
Thank You sooo much for reading this...Hope you all do well for tomorrow's exam!! Jia You!!~All the best!! It's our last test so...study hard and we will definitely do well!!~~Go 105!! Lets all make Ms Sherry Tan proud!!
Credits:Michelle & Nurul [Photography]
Charmaine Tan & Malika [Experimenting & Being "Models"]
Ms Sherry Tan [For the helpful facts]
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