Unit 5 Flashcards
Conduction
the transfer of heat through matter by way of the collision of molecules
Conservation of Energy
in a closed system, in changing from one form to another, energy cannot be created or destroyed
Conservation
kuhn-VEK-shuhn
the process in which heat energy is transferred through the movement of matter
Elastic Potential Energy
potential energy an object possesses due to its elasticity; elasticity is an object´s tendency to return to its original shape after it has been compressed or stretched
Electromagnetic Radiation
\ih-LEK-troh-mag-NEH-tik\
waves of energy associated with electric and magnetic fields; results from the acceleration of an electric charge
Endothermic
\EN-doh-thurm-ihk\
net absorption of energy
Energy
the ability, capacity, or capability of a physical system to do work
Exothermic
\EK-soh-thurm-ihk\
net release of energy
Heat
a form of energy transferred (by way of conduction, convection, or radiation) by virtue of a difference in temperature; heat is energy in transit; heat is energy flow, measured in energy units
Kinetic Energy
\kuh-NEH-tihk\
the energy of motion
Kinetic Theory
\kuh-NEH-tihk\
theory in physics based on the fact that particles of matter are in vigorous motion and that the temperature of a substance increases with an increase in either the average kinetic energy of the particles or the average potential energy of separation of the particles, or in both, when heat is added
Potential Energy
stored, or available, energy; also, the energy of position
Radiation
the process in which energy is emitted by one body, transmitted through an intervening medium or space, and absorbed by another body
Specific Heat
the amount of heat needed to raise the temperature of a substance 1°C; the greater the specific heat, the greater the heat it takes to raise a substance´s temperature; also specific heat capacity
Temperature
a measure of how hot or cold something is; a measure of the average kinetic energy of the particles of a substance
