Understanding light notes
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Understanding Light- Notes PowerPoint PPT Presentation


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Understanding Light- Notes. Reflection of light:. Mirrors and smooth objects reflect light to form clear images. Refraction of light:. When light waves bend they separate into the ROY G BIV colors. Prisms, Diffraction Gratings, and Spectroscopes are tools used to refract light.

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Understanding Light- Notes

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Understanding light notes

Understanding Light- Notes


Reflection of light

Reflection of light:

Mirrors and smooth objects reflect light to form clear images.


Refraction of light

Refraction of light:

When light waves bend they separate into the ROY G BIV colors.

Prisms, Diffraction Gratings, and Spectroscopes are tools used to refract light.


Transmission of light

Transmission of light:

Light waves pass through space or a medium.

Materials that can transmit light are either transparent or translucent.

Transparent- clear material that allows light to pass easily. The image is not distorted.

Translucent- material that appears “hazy” or “foggy”. The image is distorted.


Absorption of light

Absorption of light:

When objects absorb light they become warmer because the energy is not “passed” on.

Materials that cannot transmit light are opaque.

Opaque- material that transmits no light.


How do we perceive objects as having color

How do we perceive objects as having color?

The wavelength of light reflected off an object will be the color we see.

Ex: A red apple….reflects red light

Absorbs _OY G BIV


What about that black cat

What about that black cat?

ROY G BIV is

absorbed (all light)

No light is reflected back to

our eye


Understanding light notes

Black objects:absorb all wavelengths of light (ROY G BIV)

White objects:reflect all wavelengths of light (ROY G BIV)


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