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alicia325
Term | Definition |
---|---|
vibrations | a back-and-forth movement of matter |
pich | how high or low a sound is |
volume | the loudest of sound |
frequency | the number of vibrations per second |
opaque | not allowing light to pass thought |
refraction | the bending of light moves from one material to another |
transparent | allowing only some light to pass thought |
reflection | the bouncing of heat or light off an object |
concave lens | a lens that is thicker at the edges than it is at the center |
convex lens | a lens that is thicker at the center than it is st the edges |