Chapters13&amp;14

# Chapters13&amp;14 - Chapters13&14 TemperatureandHeat...

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Alta Physics Temperature and Heat

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Alta Physics Heat Heat is a form of  Energy Transfer Heat flows from areas of high energy to  areas of lower energy Heat is transferred three way Conduction – requires contact Convection – mass movement of  molecules Radiation – transfer over a distance
Alta Physics Temperature Scales Temperature is defined as a measure of  the  average kinetic energy  of the  molecules. Temperature scales were developed  using the freezing and boiling points of  water at sea level as the standard  reference points.

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Alta Physics Temperature Scales There are three Temperature Scales  used in Science Fahrenheit – Used primarily in the United  States Celsius – the standard for the Metric  System Kelvin – Also know as the “Absolute Zero”  Scale.
Alta Physics Standard Reference Points Scale Boiling Point Freezing  Point Fahrenheit 212 °F 32 °F Centigrade 100 °C 0 °C Kelvin 373 273

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Alta Physics Conversion Equations Fahrenheit to Centigrade C = 5/9 (F – 32) Ex: C = 5/9 (212-32) = 100 Centigrade to Fahrenheit F = (9/5 C) + 32 Ex: F = (9/5)(100) + 32 = 212
Alta Physics Conversion Equations Centigrade to Kelvin K = C +273 Ex: K = 100 + 273 = 373 Kelvin to Centigrade  C = K - 273 Ex: K = 373 - 273 = 100

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Thermal Expansion Most objects tend to expand when their  temperature rises and to contract when  the temperature drops. Do you know what the one notable
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Chapters13&amp;14 - Chapters13&14 TemperatureandHeat...

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