Review Light-1

Eyeglasses and camera lenses change the path of light to focus an image. Which of the following is responsible for that change?

  1. Refraction

    Yes! Refraction bends light as it moves from one substance to another. By bending the light, we can use refraction to focus the image in a camera, or to correct the focus of the lens in our eyes.
  2. Reflection

    No. While some light is reflected from a lens, that does not help us focus the image.
  3. Absorption

    No. The lens is clear, telling us that very little of the light is being absorbed. Absorption does not help the lens focus.
  4. Diffusion

    No. Diffusion is the scattering of light as it is reflected in many different directions. Diffusion would make the image cloudy and blurry, not help focus it.



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.
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
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
A Long Lens text page
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SC.3.P.10.4 Demonstrate that light can be reflected, refracted, and absorbed.
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
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
A Long Lens text page
Sunlight, Energy, and Crayons text page, free
Review Light-1 practice
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice

SC.7.P.10.2 Observe and explain that light can be reflected, refracted, and/or absorbed.
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
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
A Long Lens text page
Sunlight, Energy, and Crayons text page, free
Review Light-1 practice
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice

Utah


UT.8.IV.1.b Compare the transfer of energy (i.e., sound, light, earthquake waves, heat) through various mediums.
Noisy String video, checked
Mirage video, free, ClosedCaptions, Updated
About Microwaves video, checked
Microwave Chocolate video, checked
Spoon Bells video, checked
The Singing Glass video, checked
Why Wet Things Turn Dark video, checked
The Science of Pizza video, checked
Heating a Balloon video, ClosedCaptions, checked
Changing the Speed of Light video
Doppler Effect video, checked
Solar Power video, checked
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Comparing How Sound Moves Through Liquids and Gases text page
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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.
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
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
A Long Lens text page
Review Light-1 practice
Review Light-2 practice
Review Light-3 practice
Review Light-4 practice
Review Light-5 practice

MS-PS4-2 Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
Mirage video, free, ClosedCaptions, Updated
About Microwaves video, checked
Microwave Chocolate video, checked
Why Wet Things Turn Dark video, checked
Onion Crystals video
Sunprints video
Finding Fat in Foods video, ClosedCaptions, checked
Changing the Speed of Light video
Why is Foam White? video, checked
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
A Long Lens text page
Sunlight, Energy, and Crayons text page, free
Review Light-1 practice
Review Light-2 practice
Review Light-4 practice
Review Light-5 practice