Details Title: 12-2 Heat Transfers Description: Chapter 12 Section 1 Total Flash Cards: 19 Created: 03/13/2009 11:58:20		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Science Flashcards
Cards in this set: Term true or false The faster the molecules of a gas are moving the more energy they have. Definition true Term The total energy of motion in the molecules of a substance is called.. Definition thermal energy Term The average amount of energy of each molecule of a substance is called Definition temperature Term true or false: Temperature is a measure of how hot or cold a substance is. Definition true Term Air temperature is usally measured with a... Definition thermometer Term How does a thermometer work? Definition A thermometer works because liquids expand when they are heated and contract when they are cold. Term The freezing point for celcius____ farenheit____ the boiling point c____ f____ Definition freezing point c 0 f 32 boiling point c 100 f 212 Term the energy transfered from a hotter object to a cooler object is..... Definition heat Term heat can be transfered by Definition 1.radiation 2.conduction 3.convection Term true or false Radiation is the direct transfer of heat by electromagnetic waves(ultraviolet radiation) Definition true Term The direct transfer of heat from one substance to another that is touching is called ______________. Definition Conduction (2 substances that are in contact) Term Conduction works well in some ________ though very well in __________. Definition solids and metals Term The transfer of heat by the movement of a fluid is called Definition convection Term Feeling the sun's warmth on your face is Definition radiation Term Drying your boots over a hot air vent is __________ Definition convection Term Burning your bare feet on hot sand is Definition conduction Term __________ air is more dense than __________ air; therefore, ______ air rises and _________ sinks. Definition Cold = more dense than warm Warm air rises, cold air sinks Term most of the heating in the troposphere is caused by Definition convection Term The upward movement of warm air and downward movement of cold air is Definition convection currents