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Phy. Sci. Chap. 9
Mrs. Cribb's third period Physical Science class/ TKA
| Question | Answer |
|---|---|
| Heat transfers from... | hot to cold. |
| Heat is an object's... | thermal energy. |
| According to the kinetic-molecular model, atoms, molecules, ions, and their subatomic particles are in _________ and thus have_______. | constant motion, kinetic energy. |
| Add the potential energies and the kinetic energies together and you get the.... | total internal energy. |
| Thermal energy of a system is the sum of all the __________ of its particles. | kinetic energies |
| Thermal energy can only be measured as it is _________ from one system to another. | transferred |
| When molecules start moving more, they are ________ kinetic energy. | gaining |
| When you gain kinetic energy, you __________ your thermal energy and your temperature. | increase |
| Transferring particle kinetic energy, the motion, is called ___________ or __________. | heating, cooling |
| The temperature of an object is directly related to the ___________ kinetic energy of its atoms and molecules. | average |
| The advantage of the Kelvin scale is that there are ___ ________ values. | no negative |
| In the temperature conversion formulas, the __________ make a HUGE difference. | parentheses |
| Thermal expansion happens on the __________ level. | particle |
| Electrical resistance ____________ with increasing temperature because the electrons move more randomly. | increases |
| Viscosity is the measure of the _________ of liquids to flow. | resistance |
| Viscosity ___________ with increasing temperature. | decreases |
| Heat is the _________ of thermal energy that flows from one place to another. | quantity |
| Conduction- when to objects of ___________ ____________ touch, thermal energy moves from the hotter one to the cooler one. | different temperatures |
| Conduction is the chief process by which _______ energy moves through solids. | thermal |
| Convection- thermal energy carried from one location to another by a __________. | fluid |
| Radiation- thermal energy that radiates from the source ___________. | outward |
| The _________ the temperature of the substance, the ____ electromagnetic energy is emitted. | higher, more |
| Radiant energy can transfer thermal energy between two objects that are ___ in contact. | not |
| Materials that resist the flow of thermal energy are called.... | insulators. |
| The best insulator is.... | a vacuum. |
| Heat Capacity is the the amount of the thermal energy absorbed and the temperature ______ caused by this. | change |
| Latent heat of vaporization is the amount of heat it takes to change the _______ to a ___. | liquid, gas |
| Latent heat of fusion is the amount of thermal energy exchanged per gram of material during _______ or ________. | melting, freezing |
| Freezing- ________ to _______. | liquid, solid |
| Melting- ________ to _________. | solid, liquid |
| Condensation-____ to __________. | gas, liquid |
| Vaporization-_________ to ____. | liquid, gas |
| Sublimation-________ to ____. | solid,gas |
| Deposition-_____ to _________. | gas, solid |
| 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 ____, regardless of the pressure. | gas |
| Freezing Point- the temperature at which the solid and liquid phases of a substance are in a _______________ at atmospheric pressure. | equilibrium |
| Boiling Point- the temperature at which the _____ pressure of a liquid is equal to the pressure on the liquid. | vapor |
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kmills100599
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