Physics Unit 6 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
temperature | a measure of the average translational kinetic energy per molecule in a substance, measured in degrees (C, F, or K) |
absolute zero | the lowest possible temperature that a substance may have- the temperature at which molecules of the substance have their minimum kinetic energy |
heat | the energy that flows from a substance of higher temperature to a substance of lower temperature, commonly measured in calories or joules |
internal energy | the total of all molecular energies, kinetic plus potential, that are internal to a substance |
specific heat capacity | the quantity of heat per unit mass required to raise the temperature of a substance by 1 degree C |
conduction | the transfer of heat energy by molecular & electron collisions within a substance ( especially a solid) |
convection | the transfer of heat energy in a gas or liquid by means of currents in the heated fluid; the fluid moves carrying energy with it |
radiation | the transfer of energy by means of electromagnetic waves |
terrestrial radiation | the radiation emitted by Earth to outer space |
Newton's Law of Cooling | the rate of loss of heat from a warm object is proportional to the temperature difference between the object & its surroundings |
greenhouse effect | warming of the lower atmosphere by short wavelength radiation from the Sun that penetrates the atmosphere, is absorbed by the Earth, & is reradiated at longer wavelengths that cannot easily escape Earth's atmosphere |
solar constant | 1400J/m^2 received from the Sun each second at the top of Earth's atmosphere on an area perpendicular to the Sun's rays; expressed in terms of power, 1.4kW/m^2 |
solar power | energy per unit time received from the Sun |
evaporation | the change of phase from liquid to gaseous; a cooling process |
sublimation | the change of phase from solid to gaseous, bypassing the liquid phase |
condensation | the change of phase from gaseous to liquid; a warming process |
boiling | the rapid evaporation that takes place within a liquid as well as at its surface; a cooling process |
regelation | the process of melting under pressure & then subsequently refreezing when the pressure is removed |
heat pump | a device that transfers heat out of a cool environment & into a warm environment |
latent heat of fusion | the amount of energy required to change a unit mass of a substance from solid to liquid (and released in the reversed process) |
latent heat of vaporization | the amount of energy required to change a unit mass of a substance from liquid to gas (and released in the reversed process) |
Created by:
ginaliane
Popular Physics sets