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Ch 3 Energy - Megan

Ch 3 Energy for Megan Brown

TermDefinition
energy the ability to cause changes in matter
Law of Conservation of Energy law that states that the total amount of energy in a system is always the same....energy can't be created or destroyed
kinetic energy the energy of motion....the ability to extract a force on matter that comes into contact with it
potential energy stored energy....energy that is due to the position or condition of an object
thermal energy heat energy...kinetic energy of the moving particles of a substance or object
heat thermal energy that is transferred
conduction energy is passed on due to the collision of particles
convection when a liquid or gas is heated up, it expands, and its density decreases....hot materials rise over cool ones
radiation transfer of energy in waves...thermal is a type
Iron, Cobalt, and Nickel substances in which magnetism can occur
domain a small group of atoms
magnet all of the domains of a substance align in the same direction
electricity the interaction of electric charges...the moving of electrons
electric energy the movement of energy from one place to another...the moving of electrons
electric circuits enable electric currents to travel....must be continuous with no gaps
static electricity charges that are present, but don't flow form one place to another
current electricity the flow of electric charge
series circuit the wires all go in one direction hopping from one resistor to another
parallel circuit the electrons have different paths of wires and don't have to go in one set order
electromagnet a magnet ran by electricity that can be turned on and off
chemical energy a form of potential energy stored in reactants
fission atoms fall apart....some energy is given off (power plants and bombs)
fusion putting atoms together....lots of energy is given off (Sun and big bombs)
boiling point of water 212 f or 100 c
melting point of water 32 f or 0 c
Created by: browngdavid