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6 CK ENERGY SET 2
6th CK HEAT & ENERGY TRANSFER D- I SET 2 - COMPLETE
| Term | Definition |
|---|---|
| Degree | unit of measurement of temperature |
| Distillation | the separation of mixtures with different boiling points |
| Electrical Energy | the energy contained in batteries, power lines, and lightning |
| Energy | the ability to do work or cause change |
| Evaporation | vaporization that occurs at the surface of a liquid. |
| Expansion | adding heat energy to a substance, which causes the molecules to move more quickly and causes the substance to become larger in size |
| External combustion engine | an engine powered by fuel burned outside the engine. |
| Fahrenheit scale | the temperature scale on which 32 and 212 are the temperatures at which water freezes and boils. |
| Fossil fuels | Coal, petroleum, and natural gas; formed by the remains of prehistoric plants and animals that were covered with sand and clay and compressed for millions of years |
| Freezing point | the temperature at which a substance changes from a liquid to a solid |
| Gas (vapor) | assumes the shape and volume of its container |
| Gasohol | A mixture of gasoline with alcohol derived from plants. |
| Geothermal energy | energy obtained by tapping underground reservoirs of heat, usually near volcanoes or other hot spots on the surface of the earth. |
| Heat | the movement of thermal energy from a substance at a higher temperature to another at a lower temperature. |
| Heat Energy | how hot an object is |
| Heat engine | a device that converts thermal energy into mechanical energy. |
| Heat transfer | the flow of heat from warmer objects to cooler ones |
| Hydrocarbons | Chemical compounds whose main feature is a long chain of carbon atoms bonded to hydrocarbon atoms |
| Insulator | material that does not conduct heat or electricity very well |