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Science Unit E Ch 3

Chapter 3 Vocabulary

energy The ability to cause changes in matter; the ability to do work.
law of conservation of energy A law that states that the total amount of energy in a system is always the same, and that energy cannot be created or destroyed.
kinetic energy The energy of motion.
potential energy The energy that exists due to the position or condition of an object.
thermal energy The kinetic energy of moving particles of a substance or object.
heat The transfer of thermal energy.
conduction The transfer of thermal energy that results from the collision of particles.
convection` The transfer of thermal energy through liquids and gases.
radiation The transfer of thermal energy as waves.
magnet An object which has all the domains pointing in the same direction and magnetic fields that work together.
electricity The interaction of electric charges - usually classified as static electricity or current electricity.
electric energy The movement of electrons from one place to another; current electricity.
circuit The connection needed for current to travel between the poles of two electric energy sources.
electromagnet A device made when electric current travels through a wire coiled around a piece of iron.
chemical energy A form of potential energy stored in reactants.
nuclear energy The energy that holds protons and neutrons together in an atom's nucleus.
fission The reaction that releases nuclear energy when a nucleus breaks into two parts.
Created by: mquay