The Eye
Radio
Waves
Microwaves
and
Infrared
Visible Light
Ulraviolet
X-Rays and
Gamma Rays
Light
Versus
Matter
Misc.
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• This convex part of the
eye focuses and bends
light to a focal point
before projecting it upside
down on the retina.
• This part of the retina allows
you to see colors while this
part lets is used to see
brightness or darkness.
• This part of the eye has
color and regulates the
amount of light that enters
the eye by relaxing or
contracting.
• This is the area of the eye
where an image is projected
and the image is usually
________.
• The Cornea is the clear covering of the eye,
and is this, meaning light is able to pass
through a substance without being reflected
or absorbed.
• This type of wave is used in
certain types of ovens, Wi-Fi
devices, and Bluetooth to
communicate between devices
or cook food.
• Cell phones call signals, cordless
phones, remote control cars,
CBs, TVs, music listening devices
such as radios use this type of
electromagnetic spectrum wave.
• Water absorbs this type of
electromagnetic spectrum wave
very well which is why we use it
to cook food very fast.
• This type of electromagnetic wave
is just below the human range of
vision, but can be seen in the
desert, on a road, waving above a
car on hot days, or above a very hot
stove. It is often used to cook food.
• This type of electromagnetic
spectrum wave has the longest
wavelength.
• This is the most useful part of
the electromagnetic spectrum
to mankind. This equals 50% of
the Sun’s light and lets us see
the environment around us.
• This part of the
electromagnetic spectrum lets
us look inside of human bodies
to find cavities, broken bones,
foreign objects, and
abnormalities in them.
• Cancer doctors may use this
type of electromagnetic
spectrum wave to kill the
infected cells. It also has the
highest frequency and shortest
wavelength.
• Lasers use this form of light
whose crests and troughs are
parallel to each other.
• Many people use this light in the
summer from the Sun or in the
winter from special beds to tan and
bronze their skin. This type of light
also helps the skin make Vitamin D,
but too much of this light can be
harmful to humans.
• These types of materials do
not allow light to pass through
them and either absorb or
reflect light that is striking
them.
• Light is doing this when objects
underwater appear broken or
further way than they really are
because the photons of light are
being slowed and bent by the
water when they enter it.
• When light or lasers bounce
off a shiny surface, such as a
mirror, they are doing this
principle of mirrors.
• The following are all examples
of this type of material: clear
glass, air, clear water spheres,
clean water, and clear plastic.
• This is when a mirror curves
out providing a wide angle
view. The opposite type of
mirror curves inward and can
show a magnified image of you
or show you upside down.
• This is the type of wave that
the electromagnetic spectrum
moves, and has the
characteristics of crests and
troughs.
• These are shiny opaque
objects that reflect light in the
same direction that the light
struck them.
This is an
example of
this type of
light source.
• This is an
example of
this type of
light source.
Choose an amount to wager now.
• The sky is blue during the day and in
the morning and evening it turns to
purple, yellow, orange and red
because of this happening as the light
from the Sun passes through the
many layers of atmosphere. This can
also describe why the Moon looks red
on the horizon at night.
Make your wagers now
.
• The following number
represents _____ in a vacuum:
• 299,792 km/sec (186,282
mi/sec)
•What is the Speed of
Light?