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Unit 7 Vocab

Temperature and Heat

TermDefinition
thermal energy the total kinetic and potential energy of all the particles of an object
energy the ability to do work or cause change
temperature how hot or cold something is; a measure of the average energy of motion of the particles of a substance
matter anything that takes space
kinetic energy energy an object has due to its motion
solid a state of matter in which the particles are embedded together
liquid a state of matter in which the particles move freely
gas a state of matter in which the particles move randomly
law of conservation of energy this principle that states that energy is not created or destroyed, it can only transform
insulator 1. a material that does not heat well 2. a material that does not easily allow electric charges to flow
energy transfer a change from one form of energy to another
heat the transfer of thermal energy from a warmer object to a cooler object
Celsius the temperature scale on which water freezes at 0 degrees C and boils at 100 degrees C
freezing point the point at which a liquid transfers to a solid
warm a combination of both hot and cold
convection the transfer of thermal energy by the movement of a fluid
conduction 1. the transfer of thermal energy from one particle of matter to another 2. a method of charging an object by allowing electrons to flow from one object to another object through direct contact
conductor 1. a material that conducts heat well 2. a material that allows electric charges to flow
boiling point the point at which a liquid transfers into a gas
melting point the point at which a solid transfers into a liquid
molecules a neutral group of two or more atoms held together by covalent bonds
cold when something is at a low temperature
absolute zero the temperature at which no more energy can be removed from matter
phase change the point at which one state of matter transforms into another state of matter
Created by: mvaradachari
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