|
103 is the love. |
|
|
Thursday, February 25, 2010 6:10 AM
GROUP 7 - VOLUME ♥ GROUP 7 CHEN FENG - LEADER ISIS GOH - DOER NICOLE LIM - TIME KEEPER SARAH LIM AND CHARMAINE.V - OBSERVERS VOLUME -The volume of an object is the amount of space it occupies. -The S.I unit for volume is the cubic meter. The symbol is m3. -Other volume units are cubic centimetre (cm3), millimetre (ml) and litre (l). -We can measure the volume of liquids with a burette, pipette, measuring cylinder or a beaker. Useful conversions 1ml - 1cm3 1l – 1000cm3 1l - 0.001m3 1000l - 1m3 Reading the meniscus The liquid that is curved into a shape is called the meniscus. Your eye should be at the correct level to read the measuring cylinder correctly. Make sure your eye is at the bottom of the meniscus to avoid error.  Regular solids We can measure regular solids by using the right formulae. Volume Cube- l x l x l Cuboid- l x b x h Cylinder- pi x r2x h Sphere- 4/3 x pi x r3 Cone- 1/3 x pi x r2 x h Key L – length pi - 3.142 B – breath H – height R – radius Irregular solids You can measure irregular solids by displacement, using a measuring cylinder or a displacement can. Put water into the displacement can and put the object inside the water. The water will flow out the spout of the displacement can into a beaker. The water collected in the beaker will be the volume of the object. Cubic kilometre - 1km = (1 000 x 1 000 x 1 000) m3 = 1 000 000 000 m3 Cubic metre = (100 x 100 x 100) cm3 = 1 000 000 cm3 = 1000 l Cubic centimetre - 1 cm3 = (10 x 10 x 10) mm3 Parallax error is a error in measurement due to eye not position perpendicularly on the scale.  These are some equipment that measure volume! eg. beaker , mearsuring cylinder, pipette, burette (common ones) The pipette filer : a - air s-subtion e-empty The beaker : can be measured in 50 ml, 100 ml , 200ml |
Yours truly,  With Loves, Scream Love, |
