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Ch. 9 Phys Sci
Extra Credit Study Stack
| Question | Answer |
|---|---|
| how does heat flow? | heat flows from hot to cold |
| what is heat? | heat is an object's thermal energy |
| transferring particle kinetic energy (the motion) is called... | heating or cooling |
| loss of thermal energy is usually accompanied by... | falling temperatures |
| gain of thermal energy is usually accompanied by... | rising temperatures |
| the temperature of an object is directly related to the _____ _____ _____ of it's atoms and molecules | average kinetic energy |
| the Fahrenheit scale was created by _____ Fahrenheit in _____ | Gabriel, 1714 |
| the Celsius scale was created by _____ Celsius in _____ | Anders, 1742 |
| the Kelvin scale was created by _____ Kelvin in _____ | Lord, 1848 |
| Thermal Expansion | happens on the particle level |
| Electrical Resistance | increases with increasing temperature |
| Viscosity | the measure of the resistance of liquids to flow, decreases with increasing temperature |
| Heat | the quantity of thermal energy that flows from one place to another |
| Conduction | when two objects of different temperatures touch, thermal energy moves from the hotter object to the cooler one |
| Convection | thermal energy carried from one location to another by a fluid |
| Radiation | thermal energy that radiates outward from the source |
| Insulators | materials that resist the flow of thermal energy |
| Heat Capacity (C) | the relationship between the amount of thermal energy absorbed and the temperature changes caused by this |
| what is heat capacity found in? | Joules (J)/ degree Celsius (C) |
| Specific Heat Capacity/Specific Heat | heat capacity per gram of material |
| Latent Heat of Fusion | amount of thermal energy exchanged per gram of material during melting or freezing |
| Formula for Latent Heat of Fusion: | Q=mL |
| Latent Heat of Vaporization | amount of heat it takes to change the liquid to a gas |
| Freezing | liquid to a solid |
| Melting | solid to a liquid |
| Condensation | gas to a liquid |
| Vaporization | liquid to a gas |
| Sublimation | solid to a gas without passing through the state of a liquid |
| Deposition | gas to a solid without passing through the state of a liquid |
| Freezing Point | the temperature at which the solid and the liquid phases of a substance are in equilibrium at atmospheric pressure |
| Boiling Point | the temperature at which the vapor pressure of a liquid is equal to the pressure on the liquid |
| Triple Point | the temperature and pressure at which the solid, liquid and gas phases exist simultaneously |
| Critical Point | the temperature above which a substance will always be a gas regardless the pressure |
Created by:
Lanie223
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