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question 5
light: a range of energy waves
light waves traverse in straight lines until they strike a surface. when light waves strike a surface, three things can happen. the light waves may be absorbed by the surface, bounce off the surface, or pass through the surface. the bouncing of light waves off of an object is reflection. these objects are seen when the reflected light waves strike someones eyes. a mirror is an example of this. refraction is the bending of light, and takes place when light waves travel through two different transparent materials. observing a straw in a glass of water appearing to bend would be described as refraction, or the bending of those energy waves.
the range of energy waves that includes all visible and invisible light waves is called the electromagnetic spectrum. waves in the electromagnetic spectrum are arranged by the amount of energy they have.
gamma waves are extremely powerful, and have the most energy of all the waves in the electromagnetic spectrum. they are used to fight types of cancer. another type of
in paragraph 1, the word transparent means —
select one:
thick
clear
colorful
dark
The word "transparent" in English means allowing light to pass through so that objects behind can be distinctly seen, which is closest in meaning to "clear".
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clear