LIGHT REFLECTION, REFRACTION, AND ABSORPTION

The way light waves bounce and bend show details of objects around us REFLECTION Bouncing waves Like a ball bounces back REFRACTION bending waves Do NOT bounce back Helps us see Makes the rainbow

REFLECTION

Bouncing waves

Like a ball bounces back

REFRACTION

bending waves

Do NOT bounce back

Helps us see

Makes the rainbow

Not all waves bend or bounce, some stick ABSORPTION Light waves that get taken up or absorbed Opaque objects you can not see through, like wood or wool, can absorb light waves Absorption helps us see color

ABSORPTION

Light waves that get taken up or absorbed

Opaque objects you can not see through, like wood or wool, can absorb light waves

Absorption helps us see color

3 kinds of Mirrors reflect light waves PLANE Flat mirrors in our bathroom Reflection is the same size CONVEX Not the same size View is wider—you can see more The mirrors on our cars CONCAVE Curved like a spoon Can look upside-down, right-side up, smaller or bigger Like a funhouse mirror

PLANE

Flat mirrors in our bathroom

Reflection is the same size

CONVEX

Not the same size

View is wider—you can see more

The mirrors on our cars

CONCAVE

Curved like a spoon

Can look upside-down, right-side up, smaller or bigger

Like a funhouse mirror

Telescopes use mirrors to see far distances Telescopes Reflect or refract light Use plane and concave mirrors The bigger and more mirrors the larger the image the further away to see

Telescopes

Reflect or refract light

Use plane and concave mirrors

The bigger and more mirrors

the larger the image

the further away to see

Why do things look different in the water? REFRACTION —bending light Light travels through air very fast—faster than water Light travels through water faster than through glass As light goes through material it slows down and bends

REFRACTION —bending light

Light travels through air very fast—faster than water

Light travels through water faster than through glass

As light goes through material it slows down and bends

In order to see, our eyes need to use refraction Our eyes focuses light to form and see objects Light enters in a straight line The lens bends the light rays and focuses in the retina to make images

Our eyes focuses light to form and see objects

Light enters in a straight line

The lens bends the light rays and focuses in the retina to make images

Light is made of many colors— I can only see the visible spectrum. White light is made up of the colors of the rainbow. Red bends the least Violet bends the most In order: red , orange , yellow, green , blue , indigo , violet Other colors we see come from mixing the visible spectrum colors

White light is made up of the colors of the rainbow.

Red bends the least

Violet bends the most

In order: red , orange , yellow, green , blue , indigo , violet

Other colors we see come from mixing the visible spectrum colors

The ABSORPTION of light is very important to how we see things. Objects with colors absorb some light and reflect others The color of light the object reflects is the color we see

Objects with colors absorb some light and reflect others

The color of light the object reflects is the color we see

In summary, I have learned Light can be reflected (like in mirrors), Convex—made bigger Concave—changes size , shape or direction refracted (by water) Makes it look like it doesn’t match up absorbed (by objects) Other colors taken in, color I see is reflected I can see only the visible spectrum of colors from the rainbow—ROY G BIV My eyes’ lenses use the refraction of light to see Light travels slower through objects than air Light travels very fast Telescopes use plane and concave mirrors to see things far away Light is like up and down waves

Light can be

reflected (like in mirrors),

Convex—made bigger

Concave—changes size , shape or direction

refracted (by water)

Makes it look like it doesn’t match up

absorbed (by objects)

Other colors taken in, color I see is reflected

I can see only the visible spectrum of colors from the rainbow—ROY G BIV

My eyes’ lenses use the refraction of light to see

Light travels slower through objects than air

Light travels very fast

Telescopes use plane and concave mirrors to see things far away

Light is like up and down waves

Manipulating Light by Darlene Stille Reflection—I see Refraction—it bends Absorption—goes into By Darlene Stille

Reflection—I see

Refraction—it bends

Absorption—goes into

By Darlene Stille