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16 Cards in this Set
- Front
- Back
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dimension |
once you have identified the dimension you want to measures, you must compare it against an appropiate standard. |
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stamdard |
a standard is a known quantity of a dimension that everyone agrees to use for the comparison when measuring. |
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measurements |
describe how scientist make measurements? |
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quantitive |
compare and contrast quantitve and qualitive data. |
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metric refixes |
convert data reported in one unit of measurement to another unit. |
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unit |
(L. unus-one) |
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observational bias |
it occurs when an observer imposes his pressupositions on the observational results. its more likely a qualitive data. |
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metric |
(fr. me'tre from gk.metron- to measure) |
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cubic centimeter |
is equal to one thousandth of the volume of a cubic meter (m3). today a cubic decimeter is equal to a volume of 1 liter. |
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standard kilogram |
is officialy called the imternational prototype kilogram. bipm is the abbreviation formed by the initials of the french words for international bureau of weights and measures. |
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SI base units |
meter length m kilogram mass kg second time s ampere electric current A kelvin absolute temperature K mole amount of substance mol candela radiant intensity cd |
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factor |
is one of the numbers in a multiplication operation. |
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example |
1=1dozen ----------- (conversion factor) 12 eggs |
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wrong example |
6 eggs* 1dozen ----------- 12 eggs thats (wrong) |
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conversion factors |
the answer is 3.5 kg box contains 10 items more chocalate.
1L=1000ml 1kg=1000g |
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example |
comparing 350g of chocalate to 3.5kg of chocalate. |
