|
VIDEO: Basics of Physics: Exploring Light and Color
We collect 95% of all our input about the world around us
through our sense of sight. This program describes how our eyes work and
provides information about the nature of light and color. People have been
fascinated with light and eyes for a long time but their ideas have not
always been correct. For instance, 2,000 years ago the Greeks thought that
our eyes sent out rays of energy that struck an object and then returned to
our eyes with information about the object. They thought this way because
when they viewed the eyes of cats, dogs, and deer they noticed that the eyes
of these animals were glowing. It was this glowing that they interpreted as
a source of energy that was generated by the eyes. Today we know that our
ability to see is totally dependent on reflected light. light strikes an
object and then some of it is absorbed and the rest is reflected or bounces
off the object. It is this reflected light that enters our eyes.
Grades: Gr. 5 - Gr. 8 Runtime: 30:21 ©2004 United Learning |
|
The
Visual World
(00:56)
|
The
Sun, Light, and Photosynthesis
(01:31)
|
The Sense
of Sight
(02:44)
|
|
The Human
Eye
(02:17)
|
How
Is Light Produced?
(02:15)
|
Refracted Light
(01:44)
|
|
The Electromagnetic Spectrum
(04:07)
|
Reflected Light
(01:08)
|
Primary
Colors of Light
(01:30)
|
|
The
Nature of Light
(01:49)
|
Fiber Optics
(00:51)
|
Laser
Light
(00:58)
|
|
Transparent, Translucent, and Opaque
(01:27)
|
Mirrors
and Lenses
(02:55)
|
The
Light Bulb
(00:58)
|
| |
|
VIDEO:
Exploring Light and Color
Through experimentation and observation, this
program explores light and color. Topics include the electromagnetic
spectrum, the sources of light, the properties of light, reflection,
refraction, lenses, and how human and animal eyes work. How light is used
will cover lasers, their use in stores and in medicine. Fiber optics will
also be discussed and demonstrated.
Grades: Gr. 5 - Gr. 8 Runtime: 29:30 ©1993 United Learning |
|
Introduction to Light
(02:46)
|
Light and
the Sense of Sight
(04:54)
|
Light and
Color
(06:39)
|
|
The Nature
of Light
(04:25)
|
Mirrors and Lenses
(03:14)
|
Light Technologies
(01:36)
|
|
Video Quiz: Exploring Light
(02:57)
|
|
|
| |
|
VIDEO:
Out of Darkness: An
Introduction to Light
How do we see colors? What makes a rainbow?
How does a magnifying lens work? These are just some of the questions
explored in this informative and entertaining video. All the major topics
concerning light are covered, including: reflection, refraction, the
spectrum and the speed of light. Students see how light has energy and how
the energy of sunlight is used by plants in photosynthesis. The program
explains how prisms and different types of lenses work. Key points are
clarified by animated illustrations. Simple experiments are shown
encouraging students to investigate the properties of light on their own and
fostering curiosity and the sense that science can be fun.
Grades: Gr. 4 - Gr. 8 Runtime: 21:00 ©1988 Rainbow
Educational Media |
|
An Introduction to Light
(01:10)
|
Facts
About Light
(15:38)
|
Light:
A Review
(01:43)
|
|