| A | B |
|---|
| wavelength | the distance in the line of advance of a wave from any point to the next point of corresponding phase |
| conductors | material or object that pewrmits an electric current to flow easily |
| conduction | transfer of thermal energy that happens when particles move from one place to another |
| infared waves | light that is not visible to the human eye that is beyond red such as osme sun rays |
| endothermic | chemical reaction in which energy is absorbed |
| color | phenomenon of light (as red, brown, pink, or gray) or visual perception that enables onbe to differentiate otherwise identical objects |
| visible spectrum | visible colors that can be seen by the human eye |
| ultra violet | situated beyond the visual spectrum at the violet end - radiation - having a wvelength shorter than visual light and longer than xray. |
| x-rays | to examine, treat, or photograph with x-rays - doctor use these to see bones |
| gamma ray | a photon emitted sponaneously by a radioactive substance; a photon of a higher energy than that of an xray - usually used in plural |
| radiation | energy that travles in waves in all directions from its source |
| Law of Conservation of Energy | States that energy can not be created or destroyed but only transformed from one form to another |
| Law | well tested description of how something in nature works |
| conservation | a careful preservation and protection of something; especially planned management of a natural resource |
| energy | the ability to cause change; can effect temperature, speed, shape, or direction of an object; can not be destroyed or created, only transformed |
| convection | transfer of thermal energy from particles to particle through a material when there is a temperature difference |
| insulators | an element that is a poor conductor |
| thermodynamics | physics that deal with mechanical action or relations of heat |
| exothermic | chemical reaction that releases energy; such as propane burning |
| radio waves | an electromagnetyic wavewith radio frequencies such as AM or FM |
| microwaves | a comparatively short electromagnetic wave; one between about 1 mm and 1 m in wavelength |
