Measuring MatterInternational System of Units Scientists use the International System of Units, abbreviated SI units, for measuring matter. The SI unit for mass is a kilogram and for length is a meter. When measuring volume, the liter is the most commonly used unit. 506070809010040302010100 mLlength - meterPrefixKiloOne thousand (103)HectoOne hundred (102)DecaTen (101)DeciOne-tenth (10-1)CentiOne-hundredth (10-2)MilliOne-thousandth (10-3)MicroOne-ten thousandth (10-4)Factor1 meter1 centimeterVolume Volume is the amount of space that matter occupies. The volume of liquids and gases are typically measured in liters and milliliters. Solids are often measured in cubic centimeters. DensityMatter can also be described by measuring its density. Density is the mass of an object in a given volume. To calculate density, divide an object’s mass by its volume. The unit for density is grams per cubic centimeter (g/cm3). volume of an irregularly shaped object, such as a rock, scientists sometimes submerge the object in water to see how much water is displaced. The rise in the water level indicates the volume of the rock.25 cm4 cm45 cm25 cm x 4 cm x 45 cm = 4,500 cm3500.00 gmass = 500 gvolume = 200 cm3density = 2.5 g/cm31500.00 gdensity = 7.5 g/cm3mass = 1,500 gvolume = 200 cm3For example, a piece of aluminum with a mass of 500 g and volume of 200 cm3 has a density of 2.5 g/cm3. A piece of iron with the same volume has a mass of 1,500 g. Iron’s density is 7.5 g/cm3.© Copyright NewPath Learning. All Rights Reserved. 94-4833Visit www.newpathlearning.com for Online Learning Resources. are used to indicate smaller or larger units. For example a centimeter is one- hundredth of the length of a meter. SI units enable scientists to measure matter and share data in a consistent and accurate way. Mass and WeightAn object’s mass refers to the amount of matter an object contains, while an object’s weight is the measure of the effect of gravity on its mass. The mass of a person is the same on the Moon and the Earth, but the person weighs less on the Moon than the Earth because the Moon exerts a smaller gravitational force than the Earth. length - metermass - kilogram1 meter1 centimetervolume - literdensity = mass volume600 Newtons100 NewtonsweightMoonEarthgravitational pull 6x strongerScientists use the International System of Units, abbreviated SI units, for measuring matter. The SI unit for mass is a kilogram and for length is a meter. When measuring volume, the liter is the most commonly used unit. 506070809099009099909009101110100000000000010010011010000001000011 0403020101001001001 0 mLmLLPrefixKiloOne thousand (103)HectoOne hundred (102)DecaTen (101)DeciOne-tenth (10-1)CentiOne-hundredth (10-2)MilliOne-thousandth (10-3)MicroOne-ten thousandth (10-4)FactorVolume is the amount of space that maaaaaaaattttttttttttttteeeeeeeeerrrrrrrrrrr ooooooooooooccccccccccccccccccccccuuuuuuuuuuupppppppppppppies. Thhhhhhhhhhhheeeeeeeeeee voluuuuuuuuuuuuummmmmmmmmmmmmmmeeeeeeeeeeeof liquids and gases are tyyyyyypppppppppppppppiiiiiiiiccccccccccccaaaaaaaaaaaaallllllllllllllllllllllllllyyyyyyyyyyyy mmmmmmmmmmmmmmmmeeeeeeeeaaaaasured iiiiinnnnnnnnnnnnn llllllllliiiiiiiiitttttttteeeeeeeeeerrrrrrrrrrrsssssssssss aaaaaaaaaannnnnnnnnnnnnddddddddddddd milllllllllllllllllllllllliiiiiiiiiiiiiiiiillllllllllllllllliiiiiiiiiiiiitttttttttttttterrrrrrrrrrrrrrssssssssssss...... Solids are often measureddddddddddddddddd iiin cuuuuuuubbbbbbbbbbbbbiiiiiiiiiccccccccccc cccccccccccccceeeeeeeeeeeennnnnnnnnnnntttttttttiiiiiiiiimmmmmmmmmmmmetttters. Matteeeeeeeeeeerrrrrrrrrrr caaaaaaaaannnnnnnnnnnnn aaaaaaaaallllllllllllsssssssssssssssoooooooooooooooo bbbbbbbbbbbbbeeeeeeeee ddddddddddddeeeeeeeeeesssssssssccccccccccrrrrrrrrrrriiiiiiiiiiibbbbbbbbbbbbbbeeeeeeeeeeedddd bbbbbbbbbbbbbbbyyyyyyyyyyyyyyyy mmmmmmmmmmmeasuriiiiiiiiiinnnnnnnnnnnnnnggggggggggggggggg iiiittttsssssss ddddddddddddddddddensiiiiiiiiiiiittttttttttttyyyyyy. Density is the mass of an object in a given volume. To calculate dennnnnnnnssssssssssssiiiiiiiiiiiityyyyyyyyy,,,,,,,,, ddddddddiiiiiiiiiiivvvvvvvvvvvvviiiiiiiiiiiiiiiiddddddddddddddddddddeeeeeeeeeeee aaaaaaannnnnnnnnnnnnn ooooooooobbbbbject’s mmmmmmmmmmmmmmmaaaaaaaaaaaaaasssssssssssssss bbbbbbbbbbyyyyyyyyyyyyyy iiiiiiiiiiiiitttttttttttssssssss volummmmmmmmmmmeeeeeeeeeee... TTTTTTTTTheeeeeeeeeeeeee uuuuunit for density is grams per cubic centimeter (g/cm3).volume of an irregularly shaped object, such as a rock, scientists sometimes submerge the object in water to see how much water is displaced. The rise in the water level indicates the volume of the rock.25 cm4 cmmmmmmmmmmmm455 ccccccccccccccm25 cm x 4 cm x 44444444444445555555555555 ccccccccccccccmmmmmmmmmmm ============= 44444444444444,,,,,,,,,,,5500 cm3505050505505050505 0.0000000000000000000000 ggggggggggmmmmmmmmmmmaaaaaaaaaaassssssssssssssssssssssss ============= 55555555555500000000000000000000000000000 ggggggggggggggvvvvvvvvvvoooooooooooooollllllllllllluuuuuuuuuuummmmmmmmmmmmmeeeeeeeeeeeeee ========== 2220000000000000000000000000000000 cccccccccccccmmmmmm33333333333331500.00 gmass = 1,500 gvolume = 200 cme = 2003FFFFFFFFFFFFFFFFooooooooooooorrrrrrrrr eeeeeeeeeeexxxxxxxxxxxample, a piece of aluminum with a mmmmmmmmmmmmmmmmaaaaaaaass of 500 g and volume of 200 cm3 has a dennnnnnnnnnnnnnnnnnsssssssiiiiiiiiiiiity of 2.5 g/cm3. A piece of iron with tttttttttttthhhhhhhhhhhhhhhheeeeeeee same volume has a mass of 1,500 g. Iron’s density is 7.5 g/cm3. are used to indicate smaller or larger units. For example a centimeter is one- hundredth of the length of a meter. SI units enablllllleeeeeeeee scientists to measure mmmmmmmmmmmmmaaaaaaaaaattteeeeeeeeeerrrrrrrrrand share data in a coooooooooooooooonnnnnnssiiiiiiiiiiisssssssssssstttttttttttent and accurate way. An object’s mass refers to the amount of matter an ooooooooooobbbbbbbbbbbbbbbjjjjjjjjjjjjjeecccccccccttttttttt contains, while an object’s weight is the measure ooooooffffffffff tttthhhhhhhhhhhheeeeeee effect of gravity on its mass. The mass of a persoooooooonnnnnnnnnnnnnn iiiiisssssssssss ttttthe same on the Moon and the Earth, but the persooonnnnnnnnnnnnnn wwwwwwwwwwwweeeeeeeeeeeeeeiiiiiighsssssssssssss less on the Moon than the Earth because the MMMMMMMMMMMMMMMMMooooooooooooooooooooooooonnnnnnnnnnnnnn exeeeeeeeeeeeeerrrrrrrtttttttttttttttssssssssss a smaller gravitational force than the Earth. lllllllllllleeeeeeeeeengtthhhhhhhhhh ----- mmmmmmmmmmmmmmeeeeeeeeeettttttttttttteeeeeeeeeeeerrrrrmass - kiloogggggggggggggram1 meter1 centimetervvvvvvvvvvvvvoooooooooolume - literddddddddddddddddddddensity = mass volumey6666666666666600 Newtons100 Newtonstw o sno066weighte hMoonnMEEEEEEEEEEEEarthr hEhgravitational pulllll pllotvv66666666x stronggggggggeroe6rs
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