Chapter 6 Science Thermal Energy
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Created by:
katherinedelima on March 13, 2012
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55 terms
Terms | Definitions |
|---|---|
 Temperature | The measure of the average kinetic energy of the particles in a substance. |
| Fahrenheit scale | The temperature scale on which 32 and 212 are the temperatures at which water freezes and boils. |
| Celsius scale | The temperature scale on which zero and 100 are the temperatures at which water freezes and boils. |
| Kelvin scale | The temperature on which zero is the temperature at which no more energy can be removed from matter. |
| Absolute zero | The temperature at which no more energy can be removed from matter. |
| Heat | Thermal energy that Is transferred from one substance to another. |
| Conduction | The transfer of heat between particles within a substance. |
| Convection | The transfer of heat by the movement of currents within a fluid. |
| Convection Current | A current caused by the rising of heated fluid and sinking of cooled fluid. |
| Radiation | The transfer of energy by electromagnetic waves. |
| Conductor | A material that easily transfers heat between its particles. |
| Insulator | A material that does not easily transfer heat between its particles. |
| Specific heat | The amount of heat required to raise the temperature of one kilogram of a substance by one Kelvin. |
| States | The three forms (solid, liquid, and gas) in which matter exists. |
| Change of state | The physical change of matter from one state to another. |
| Melting | change from the solid to the liquid form of matter. |
| Melting point | The temperature at which a substance melts. |
| Freezing | The change from the liquid to the solid form of matter. |
| Freezing point | The temperature at which a substance freezes. |
| Vaporization | The change from the liquid to the gaseous form of matter. |
| Evaporation | Vaporization that occurs at the surface of a liquid. |
| Boiling | Vaporization that occurs on and below the surface of a liquid. |
| Boiling point | The temperature at which a liquid substance boils. |
| Condensation | The change from the gaseous to the liquid form of matter. |
| Thermal Expansion | The expansion of matter when it is heated. |
| Thermostat | A device that regulates temperature. |
| Bimetallic strip | A strip made of two different metals that expand at different rates. |
| Heat engine | A device that converts thermal energy into mechanical energy. |
| Combustion | The process by which engine fuels burn is... |
| External Combustion Engine | An engine powered by fuel burned outside the engine. |
| Internal Combustion Engine | An engine that burns fuel inside cylinders within the engine. |
| air | Not a good conductor of heat |
| heat engines | Refrigerators and conditioners are examples of... |
| convection | Wind and ocean currents are formed by... |
| insulator | A material that reduces the flow of heat by conduction, convection and radiation |
| R-40 | The insulation that is most resistant to heat flow is rated... |
| Liquids and gases | Convection will most likely occur through... |
| internal combustion engines | Gasoline and diesel engines are... |
| radiation | The transfer of energy that does not require matter is... |
| active solar heating systems | Solar collectors are parts of ... |
| radiant energy | Energy from the sun travels to Earth as... |
| Air | The best insulator would be... |
| heat mover | A device that heats your home by transferring thermal energy from a region of low temperature to a region at a higher temperature is a ... |
| conductor | a device that converts thermal energy into mechanical energy is a... |
| R-value | The effectiveness of insulation is rated with an... |
| radiation | The inside surfaces of the glass inside vacuum bottles are coated with aluminum to prevent heat loss by... |
| twice as efficient | Compared to the efficiency of a gasoline engine, a diesel engine is... |
| kinetic energy | Temperature measures the _______ of the particles of a material |
| temperature | The specific heat of an object depends on its... |
| forced air | fan moves warm air |
| hot water | pump circulates a liquid to a radiator |
| steam | hot vapor is forced through radiators |
| electrical | gives uniform warmth |
| passive solar | large windows on south side of bulding |
| active solar | large tank for storing water heated by the sun |
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