Term
| Sound occurs when objects |
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Definition
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Term
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Definition
| sound travels through waves by matter |
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Term
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Definition
wave length - distance between point
frequency - number of waves |
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Term
| draw a picture to help you see |
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Definition
| wave lenths and frequency |
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Term
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Definition
high or low depending on frequency.
remember the rubber band experiment |
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Term
| Where can i find complete silence |
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Definition
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Term
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Definition
outer - the ear cancal
middle - three bones: hammer, stirrup, canal
inner-cochlea -filled with liquid and vibrates |
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Term
| name two sources of light |
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Definition
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Term
| names in the electromagnetic spectrum are not |
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Definition
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Term
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Definition
| radios, microwave, xrays, ultraviolet rays, infrared waves, gamma rays |
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Term
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Definition
light rays pass thru
ex. air, clean, water |
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Term
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Definition
lets some light pass thru
ex. water and paper |
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Term
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Definition
no light pass thru
ex. aluminum foil |
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Term
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Definition
| when light moves from one medium to another |
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Term
| what are the jobs of the iris and pupil in the eye? |
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Definition
iris - controls how much light goes thru
pupil - dark part and it changes size |
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Term
| what happens to light that is refracted through a concave lens? |
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Definition
convex - the light rays bend trend to the middle and make light look smaller
concave - makes light look smaller |
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