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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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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


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

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


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