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Science Exam Test
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Term | Definition |
---|---|
reflection | when light bounces or reflects |
refraction | the bending of light |
absorption | when an object gets taken into another object |
translucent | when you can mostly see through an object |
transparent | materials allow almost all the light to push through |
opaque | objects that don't let any light pass through |
light | is a form of energy |
energy | is the ability to do work |
absorb | soaks in |
pupil | lets light in |
cornea | protects the eye from dirt and dust that the eyelid missed |
muscel | it lets your eye move |
eyelid | blocks out most dirt and dust |
lens | focuses in on the object you are looking at |
retina | the picture is upside down here |
optic nerve | sends picture to the brain |
tapetum | only in nocturnal animals |
focal piont | light enter a curved glass at different angles that come together at the... |
blood vessel | brings food to the eye |
ultra violet light | very fast light that can cause sunburn |
infared ligt | very slow light that gives off heat and is visible to only some animals |
wavelengths | measurement from crest to crest or tough to tough |
magnet | anything that is made of iron steel and other certain metals |
conductor | a material through which an electric current moves easily. |
insulator | a material through which an electric current does not pass through easily |
series circuit | electricity can only flow in one path around a single loop |
parallel circuit | has 2 or more paths for an electric charge to fallow |
electric current | an electric charge in motion |
electrical circuit | the path through which controlled electric current flows |
resitor | a material that resists the flow of electric charge |
switches | opens and closes electrical circuits |