V i s i b l e light color
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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

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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


Which color has the most energy and short small wavelength

Which color has the most energy and short/small wavelength???


Color

Color

Violet the HIGHEST energy… and SHORT wavelength


Which color has the lowest energy and long big wavelength

Which color has the lowest energy and long/big wavelength???


Color1

Color

Red the LOWEST energy… and LONG wavelength


What happens when you wear white on a hot day

What happens when you wear WHITE on a hot day?


How do we get white

How do we get white?

???


2 white light

2. White light

ALL the colors ROY G BIV being REFLECTED


What happens when you wear black on a hot day

What happens when you wear BLACK on a hot day?


How do we get black

How do we get black?

???


3 black

3. Black

ALL colors of rainbow being ABSORBED.


Example fashion

Example: Fashion

Fall/Winter Colors

Spring/Summer Colors


4 how do we see color

4. How do we see color?


4 how do we see colors

4. HOW DO WE SEE COLORS?

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

When all colors are REFLECTED

We see WHITE


Black

BLACK

When all colors are ABSORBED

We see BLACK


Summary

Summary

  • Answer the essential question:

    How do we perceive color?


Summary1

Summary

  • 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

1. House Plant

  • What color(s) go in?

  • What color (s) go out?


Color balloon toss

Color Balloon Toss

Light & Color!


Review

Review

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

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?

It’s okay…let’s give it a shot.

All colors are absorbed except…


Let s get started

Let’s get started…

Pay close attention

to the MAIN color


Last one

LAST ONE…

Get Ready!!!


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