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Details Title: Heat and Temperature Description: Chapter 10 Total Flash Cards: 41 Created: 03/08/2005 09:35:24	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Heat Definition transfer of energy between objects of different temperatures Term Heat always transfers from __________ temps to ____________ temps Definition high to low Term How is thermal energy transferred? Definition heat Term Heat transfers KE from ____________ molecules to ______________ molecules. Definition faster to slower Term Thermal Equilibrium Definition the transfer of kinetic energy continues until the objects reach the same temperature. Term Thermal Energy Definition the total energy of the particles that make up a substance. Term What 3 things does thermal energy depend on? Definition temperature, total mass, and type of matter Term Specific Heat Definition Amount of energy needed to change the temperature of a kg of substance 1 degree Celcius Term Who invented the first themometer? Definition Galileo in 1597 Term Temperature Definition a measure of the average kinetic energy of the particles that make up a sample of matter. Term the higher the kinetic energy the __________________ the temperature. Definition higher Term Thermal Expansion Definition most substances expand when heated and contract when cooled. Term What principle does a thermometer work on? Definition Thermal Expansion Term Farenheit freezing point: ____________ boiling point: ____________ Definition 32 degrees F 212 degrees F Term Celcius freezing point boiling point Definition O degrees C 100 degree C Term Kelvin Scale freezing point boiling point Definition 273 K 373 K Term Proper S unit for temperature is _____________. Definition Kelvin (K) Term Conduction Definition transfer of thermal energy from one object to another by direct contact Term Convection Definition the transfer of thermal energy by the movement of a liquid or gas Term Particles in motion have _______ energy Definition kinetic Term What is the lowest possible temperature or the absolute zero? Definition O kelvin Term what happens to substances when they are heated? Definition They expand Term Scientists use ___________ or _________ to measure temperture. Definition kelvin or celcius Term Specific Heat Capacity Definition The amount of energy needed to change the temperature of 1 kg of a substance by 1 degree Celcius. Term A finger placed in a cup of hot water is an example of what? Definition Conduction Term Feeling the warmth from a fire in the fireplace is due to what? Definition Radiation Term Gold has a specific heat of 129J/kg/degree C. This means that it requires ______ Joules of energy to raise __________ Kg of gold ______ degree celcius Definition 129 J, 1 Kg 1 degree celcius Term Particles of a ____________ vibrate in place. Definition solid Term Most thermometers work on the principle of ___________ ___________. Definition Thermal Expansion Term Particles of a ___________ are able to slide past one another. Definition Liquid Term Particles of a ___________ move independently of each other. Definition Gas Term Why does water get hotter quicker than sand? Definition Water has a higher specific heat than sand. Term Many cooking utencils do not have metal handles. Why? Definition Metal is a conductor, therefore it is better to use wood or plasic which are insulators. Term Which of the following does NOT vary with the mass of a substance? heat, themal energy, temperature Definition Temperature Term 68 ml is equal to ________ grams of water. Definition 68 Term When 2 substances have the same temperature, they have the same ___________ kinetic energy. Definition Average Term Heat is the transfer of _________ between objects at different _________. Definition energy, temperature Term Is burning something a chemical or physical change? Definition Chemical Term How is energy transfered from the sun to Earth? Definition Radiation Term What state of matter has the lowest average kinetic energy? Definition A solid Term A reminder from Mrs. Bosse Definition Make sure to review Chapter 10 in the book and your notes. B day science classes have the test on Tues.after break. Have a great spring break! Take some time to study. (: