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Energy and States
| Term | Definition |
|---|---|
| kinetic energy | energy due to motion |
| temperature | the measure of the average kinetic energy of the particles in a material |
| potential energy | stored energy due to the interactions between objects or particles |
| thermal energy | the result of the motion of all the particles, and the distance and attractions between those particles in the system |
| atom | a small particle that is the building block of matter |
| substance | matter with a composition that is always the same |
| element | a substance that consists of only one type of atom |
| compound | a substance containing atoms of two or more different elements chemically bonded together |
| chemical formula | a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound |
| thermal contraction | a decrease in a material’s volume when the temperature is decreased |
| thermal expansion | an increase in a material’s volume when the temperature is increased |
| heat | the transfer of thermal energy from a region of higher temperature to a region of lower temperature; Heat can also refer to the amount of energy transferred during this process |
| pressure | the amount of force per unit area applied to an object’s surface |
| vaporization | the change in state from a liquid to a gas |
| molecule | two or more atoms that are held together by covalent bonds and act as a unit |
Created by:
jhenze
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