Review Light-3

Rainbows are produced by:

  1. Refraction

    Partly correct. Light entering the raindrop is reflected off of the back surface.
  2. Reflection

    Partly correct. As the light passes from air to water, and from water to air, the light is bent or refracted. Different colors are refracted different amounts, separating the colors.
  3. Both reflection and refraction

    Correct! When you see a rainbow, the sun will always be behind you. (There are other, similar looking phenomena which you see when facing the sun, but they are not rainbows.) The sunlight enters each raindrop, is refracted (bent). Different colors are refracted different amounts. When the light hits the far side of the raindrop, part of it goes on through, and part of it is reflected back towards the sun (and towards you.) As it passes leaves the drop, the difference in density from water to air refracts (bends) the light even more, separating the colors into bands for the rainbow.
  4. Neither reflection no refraction

    No. One or both take part in producing the rainbow.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.3.P.10.3 Demonstrate that light travels in a straight line until it strikes an object or travels from one medium to another.
Changing the Speed of Light video
Why is Foam White? video, checked
Microscopes: Growing Crystals video, free, learnalong, Updated
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Mirage video, free, ClosedCaptions, Updated
Pinhole Eyeglasses video, checked
Why Wet Things Turn Dark video, checked
Growing Crystals Under the Microscope video, free, learnalong, checked
A Long Lens text page
Review Light-5 practice
Review Light-1 practice
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice

SC.3.P.10.4 Demonstrate that light can be reflected, refracted, and absorbed.
Changing the Speed of Light video
Why is Foam White? video, checked
Onion Crystals video
Microscopes: Growing Crystals video, free, learnalong, Updated
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Mirage video, free, ClosedCaptions, Updated
Pinhole Eyeglasses video, checked
Looking for Rainbows video
Why Wet Things Turn Dark video, checked
Growing Crystals Under the Microscope video, free, learnalong, checked
A Long Lens text page
Sunlight, Energy, and Crayons text page, free
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice
Review Light-1 practice

SC.7.P.10.2 Observe and explain that light can be reflected, refracted, and/or absorbed.
Finding Fat in Foods video, ClosedCaptions, checked
Changing the Speed of Light video
Onion Crystals video
Why is Foam White? video, checked
Microscopes: Growing Crystals video, free, learnalong, Updated
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Mirage video, free, ClosedCaptions, Updated
Pinhole Eyeglasses video, checked
Why Wet Things Turn Dark video, checked
Growing Crystals Under the Microscope video, free, learnalong, checked
A Long Lens text page
Sunlight, Energy, and Crayons text page, free
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice
Review Light-1 practice

SC.8.E.5.11 Identify and compare characteristics of the electromagnetic spectrum such as wavelength, frequency, use, and hazards and recognize its application to an understanding of planetary images and satellite photographs.
Sunprints video
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
A Color You Can't See video, free, checked
CD Spectrum text page
Review Light-3 practice

Utah


UT.8.IV.1.e Demonstrate how white light can be separated into the visible color spectrum.
White Balance video, checked
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
A Color You Can't See video, free, checked
Sunlight, Energy, and Crayons text page, free
Review Light-3 practice

NGSS


1-PS4-3 Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light.
Sunprints video
Changing the Speed of Light video
Why is Foam White? video, checked
Onion Crystals video
Microscopes: Growing Crystals video, free, learnalong, Updated
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Mirage video, free, ClosedCaptions, Updated
A Color You Can't See video, free, checked
Pinhole Eyeglasses video, checked
Why Wet Things Turn Dark video, checked
Growing Crystals Under the Microscope video, free, learnalong, checked
A Long Lens text page
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice
Review Light-1 practice