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V i s i b l e Light & Color. OBJECTIVE: SWBAT identify the different colors of the visible light and compare each of its frequency and wavelength. Essential Question:. How do we perceive colors?. 1. What is visible light?. -smallest part of the EM spectrum that the human eyes can see.

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V i s i b l e light color

Visible Light & Color

OBJECTIVE:

SWBAT identify the different colors of the visible light and compare each of its frequency and wavelength.


Essential question
Essential Question:

  • How do we perceive colors?


1 what is visible light
1. What is visible light?

-smallest part of the EM spectrum that the human eyes can see

Red to Violet (ROYGBIV)


What are the different colors of visible light
What are the different colors of visible light?

  • Red – lowest energy, longest wavelength

  • Orange

  • Yellow

  • Green

  • Blue

  • Indigo

  • Violet – highest energy, shortest wavelength

  • ROYGBIV



Color
Color wavelength???

Violet the HIGHEST energy… and SHORT wavelength



Color1
Color wavelength???

Red the LOWEST energy… and LONG wavelength



How do we get white
How do we get white? wavelength???

???


2 white light
2. White light wavelength???

ALL the colors ROY G BIV being REFLECTED



How do we get black
How do we get black? wavelength???

???


3 black
3. Black wavelength???

ALL colors of rainbow being ABSORBED.


Example fashion
Example: Fashion wavelength???

Fall/Winter Colors

Spring/Summer Colors



4 how do we see colors
4. HOW DO WE SEE COLORS? wavelength???

First, light goes from the source (sun, lamp, etc.) to the object.

Second, the color we see is reflected and the rest is absorbed by the object.


White
WHITE wavelength???

When all colors are REFLECTED

We see WHITE


Black
BLACK wavelength???

When all colors are ABSORBED

We see BLACK


Summary
Summary wavelength???

  • Answer the essential question:

    How do we perceive color?


Summary1
Summary wavelength???

  • Answer the essential question:

    How do we perceive color?

    Light from sun reflects off object and we see the color that is reflected.

    Quick Review Point

  • What is the smallest band of the Electromagnetic spectrum?


Hw how we see light
HW: How We See Light wavelength???

1. House Plant

  • What color(s) go in?

  • What color (s) go out?


Color balloon toss

Color Balloon Toss wavelength???

Light & Color!


Review
Review wavelength???

When white light hits an object, all the colors are absorbed except for the color of that object.

Example:

Blue – All colors absorbed except blue, which is reflected to eye.

White – No colors are absorbed.

All colors are reflected to eye. (white light)

Black – All colors are absorbed.

No colors are reflected to eye.


Activity instructions
Activity Instructions wavelength???

For this activity, you will be given a colored balloon. You will see objects of various colors on the screen.

If the color you have is absorbed by the object, you need to cover the balloon with your body. DON’T POP IT!!

If the color you have is reflected by the object, you need to reflect the balloon into the air above you.


Confused
Confused? wavelength???

It’s okay…let’s give it a shot.

All colors are absorbed except…


Let s get started
Let wavelength???’s get started…

Pay close attention

to the MAIN color


Last one

LAST ONE… wavelength???

Get Ready!!!


Add more slides
ADD MORE Slides wavelength???


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