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Thermal En. & matter
| Question | Answer |
|---|---|
| Conduction | the process that transfers kinetic energy when particles collide |
| Convection | the transfer of energy by flow of a liquid or gas by the movement of molecules |
| Heat | the energy transferred between two objects because of a difference in temperature |
| Insulator | a material through which electrical charges or heat does not move easily |
| Radiation | energy in the form of electromagnetic waves or streams of particles such as photons or electrons |
| Specific Heat | amount of energy that must be added to a material to raise the temperature of a unit mass one temperature unit |
| Temperature | the "hotness" of material measured using a specific scale to indicate the average kinetic energy |
| Thermal Energy | the overall energy of motion of the particles of an object |
| Chemical Property | the ability or inability of a substance to combine with or change into one or more new substances |
| Colloid | heterogeneous mixture containing particles larger than solution particles but smaller than suspension particles |
| Compound | a chemical combination or two or more different elements |
| Distillation | a technique that can be used to physically separate substances based on the differences of boiling points |
| Element | a pure substance that cannot be broken down into simpler substances by physical or chemical means |
| Heterogeneous Mixture | a mixture that does not have a uniform composition and in which the individual substances remain distinct |
| Homogeneous Mixture | a mixture that has a uniform composition throughout and always has a single phase; also called a solution |
| Law of Conservation of Mass | states that mass is neither created nor destroyed during a chemical reaction |
| Physical Change | a type of change that alters the physical properties of a substance but does not change its composition |
| Physical Property | a characteristic of matter that can be observed or measured without changing the sample's composition |
| Solution | a uniform mixture that may contain solids, liquids, or gases; also called a homogeneous mixture |
| Substance | a form of matter that has a uniform and unchanging composition; also known as a pure substance |
| Suspension | type of heterogeneous mixture whose particles settle out over time; can be separated from the mixture by filtration |
| Tyndall Effect | the scattering of light by colloidal particles |
Created by:
adajahhoran
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