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omniscich78
ch 7,8 omni 8 sci test
| Question | Answer |
|---|---|
| The thermal energy transferred from objects at a high temperature to objects at a lower temperature | heat |
| Substances that do not conduct thermal energy very well | thermal insulators |
| temperature at which all molecular motion stops | absolute zero |
| one of the ways heat is transferred, over a distance, without a medium | radiation |
| shows how the physical state of water changes over time as its temperature increases | heating curve |
| phase change 'skips' a step | sublimation |
| only the SURFACE of a liquid is changing from liquid to a gas | evaporation |
| for a substance, it is the same as its freezing point | melting point |
| a measure of how 'sticky' a liquid is | surface tension |
| When atoms combine chemically, they can form these | molecules |
| defined as having mass and takes up space | matter |
| the capacity to absorb heat (water's is high) | specific heat |
| transfer of thermal energy by the movement of liquid or a gas | convection |
| atmospheric 'blankets' of water vapor, carbon dioxide, and methane | greenhouse gases |
| a measure of the resistance a liquid has to flowing | viscosity |
| its wavelengths are reflected by object | reason we see something a particular color |
| a chemical property where metal is oxidized | rusting |
| SI unit for mass | kilogram |
| one cubic centimeter | one milliliter |
| type of change exhibited by a trash can with a bad odor | chemical |
| ability of a substance to be 'pounded into a thin sheet' | malleability |
| ability to allow heat to move through it | thermal conductivity |
| like charges repel, and opposite charges attract | law of electric charges |
| part of a solar panel that converts the sun's energy into electrical energy | photocell |
| how a ruler gets to be negatively charged by electrons that are "wiped" from a cloth to a ruler | friction |
| Charging of an object by 'conduction' must involve this | contact |
| its what the air inside a hot air balloon becomes as that air is heated | less dense |
| its what all matter has as long as its particles are in motion | kinetic energy |
| happens during the 'horizontal line portions' of a heating curve | phase changes |
| measurement of amount of matter per unit of space | density |
| has waves with highest frequency | 'g' end of RaMIVUXG |
| has a wave with the largest wavelength | 'r' end of RaMIVUXG |
| type of wave that delivers its energy parallel to the direction of wave's particle motion. | longitudinal |
| type of wave that delivers its energy perpendicular to the direction of wave's particle motion. | transverse |
| amount of energy that is lost during the transfer of thermal energy | never 0%, always some |
| type of a mixture where you can see the different parts within it are not equal distributed | heterogeneous |
| type of mixture where its parts are evenly mixed, and you can not see any difference within it | homogeneous |
Created by:
schneiderw11
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