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Published byOsborne Kelly Modified over 9 years ago
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Chapter 1 Introduction to Science
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Branches of Science Social Science – behavior why animals act the way they do. (Sociology, Psychology, Animal Behaviorist. Natural Science – Biological Science, Physical Science and Earth/Space Science. – Biology BotanyZoology –Physical Science ChemistryPhysics –Earth / Space GeologyMeteorology
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Scientific Lingo Theory – Why something works. (A system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation.) Law – How something works. (A descriptive statement or equation that reliably predicts events under certain conditions.) Quantitative – described with numbers / statistics. Qualitative – described with words. Model – something used to represent something that is too big, small or difficult to display. (The day after tomorrow.)
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Scientific Method ConstantVariables Control Group Experimental Group Placebo Effect The importance of having clear, concise repeatable procedures. The importance of publishing findings.
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Base Units Lengthmeterm MassKilogramKg TimeSeconds TemperatureKelvinK Light IntensityCandelacd Amount of sub.Molemol Electric CurrentAmpereA
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Derived Units Areameter squaredm2 Volumemeter cubedm3 Velocitymeter / secondm/s Acceleration meter / second sqm/s2 Forcemass*accelerationN Pressureforce / areaPa Workforce*distanceNm or J Powerwork / time W or J/s
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Prefix Chart MegaM10 6 Kilok10 3 BASE Centic10 -2 Millim10 -3 Microu10 -6 Nanon10 -9 Practice Problems:
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Temperature Scales Farenheit – 32 freezing of pure water 212 boiling of pure water at 1 atm pressure Celsius – 0 freezing 100 boiling of water Kelvin – 0 temperature at which all molecular motions stops 0k = -273.15 C Practice Problems:
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Graphing Line – continuous display of data Bar – discontinuous multiple items at same time Pie – parts of the whole
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