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zhenek [66]
3 years ago
9

Choose all the answers that apply. The sun: -is the largest star in our solar system -is the largest star in our galaxy

Physics
2 answers:
Hatshy [7]3 years ago
8 0

-is made mostly of hydrogen and helium.

-will eventually run out of fuel and die.

-creates energy through nuclear reactions

ch4aika [34]3 years ago
5 0

Answer:

The sun:

-is the largest star in our solar system

- is made mostly of hydrogen and helium  

-will eventually run out of fuel and die  

-creates energy through nuclear reactions

Explanation:    

The sun an average mass and sized star composed of hydrogen and helium gas. It generates energy in its core by nuclear fusion reaction. It is the only star in the solar system. Once all the fuel is run out, the nuclear fusion reaction would stop and the sun would die. There are billions of stars in our milky way galaxy and sun is not the largest of them.

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<u>[Reflection]</u>

- This occurs when light bounces off a surface (reflection is when light bounces off of something, a medium, but doesn't go through.)

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- If not for this behavior, mirrors wouldn't work (mirrors use reflection, if they did not you would not be able to see your <em>reflection</em>)

<u>[Refraction]</u>

- Light moves from one medium to another (when light moves from one medium to another, it refracts)

- Lenses in your glasses to bend light waves (refraction is all about bending light waves, so this option falls under this category)

- Microscopes and telescopes take advantage of this behavior of light (again, refraction is bending light waves. When you bend a light wave, it can make it easier to see [larger, smaller, etc] so this option is refraction)

- Light wave changes speed (light does not change speed when being reflected because it is in the same medium and just bouncing, but it refraction is changes mediums so it will bend and change speed)

[Note]

- Some of these can be figured out by knowing the definitions. For example, refraction is defined as "change in direction ... of any wave as a result of its traveling at different speeds at different points along the wave front" (Oxf/ord Languages)

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

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