The particular temperature at which vaporisation occurs is known as the boiling point of liquid. Volume of water increases when it boils at 100° C. 1 cm3 of water at 100 ° C becomes 1760 cm3 of steam at 100 ° C.
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Based on the number of positive and negative charges
<u>Explanation</u>:
- In a positive charge particle, the number of proton is higher than the number of electron. Due to this fact alone, we can come to the conclusion that positive charge consists of more number of protons than electrons.
- In a negative charge particle, the number of electron is higher than the number of proton. Due to this fact alone, we can come to the conclusion that negative charge consists of more number of electrons than protons.
<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.)
- Best with a smooth surface (it is easiest for light to bounce off when the surface is smooth)
- 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
