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Ch 3 Energy - Megan
Ch 3 Energy for Megan Brown
| Term | Definition |
|---|---|
| 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
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