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Chapter 6
Heat and temperature!
Question | Answer |
---|---|
Temperature | How hot or cold something is; measure of average energy of motion of particles of substance |
Thermometer | Instrument used to measure temperature |
Fahrenheit scale | Scale used in United States to measure temperature. Water freezes at 32°F and boils at 212 °F |
Celsius scale | Temperature scale where water freezes at 0°C and boils at 100°C |
Heat | Transfer of energy from one object to another because of a difference in temperature |
Thermal Energy | Total energy of motion of all particles of an object |
Convection | Transfer of thermal energy by movement of a fluid |
Convection current | Movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another |
Radiation | Transfer of energy by electromagnetic waves |
Conduction | Transfer of thermal energy from one particle of matter to another |
Conductor | Material that conducts heat well and allows electric charges to flow |
Insulator | Material that does not conduct heat well and does not easily allow electric charges to flow |
Specific heat | Amount of heat required to raise temperature of 1 kilogram of material by 1°C |
Thermal expansion | Expansion of matter when it is heated |