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Published byAugustine Armstrong
Modified over 5 years ago
Light = straight path
An atom: emits light when an electron moves from a high to a low energy level. absorbs energy as its electrons move from a low to a high energy level.
The three primary colors of light are red, green, and blue.
The three primary pigment colors are: magenta, cyan, and yellow.
The primary colors used to construct an image on a color TV monitor are: red, green & blue.
Light can have different colors because it can have different: frequencies, wavelengths and energies
A laser is a device that emits a single frequency of light. X
The pictures represent the strength of signals reaching the brain from the color receptors in the eye. Filled boxes indicate a strong signal. Empty boxes represent no signal. NEXT
Which picture represents someone seeing the color we think of as RED? as WHITE? as BLACK?
B = red A = white D = Black
We see a tree because of light __________ by the tree. reflected
Why is this cloth blue? The cloth absorbs all colors except blue; reflects only blue light to our eyes.
Filters absorb some colors & transmit others as light passes If white light through a red filter the filter allows the passage of Absorbs all the colors except red….red passes through
If a laser printer mixes yellow & magenta pigment on the paper, it produces: red
The dotted line perpendicular to the surface is called the: NORMAL
The angle of incidence is identified as: B
Ray #2 is called the: reflected ray
A converging lens changes the direction of light through the process of: refraction
rays of light cross after they have been bent by a converging lens at the focal point.
In the picture below, the person sees the fish image in a different location than the actual fish because: The light rays reflected from the fish bend at the surface of the water.
The index of refraction best describes: the ability of a material to bend light rays. Materialn Vacuum1.00 Air1.0003 Water1.33 Plastic1.49 Glass1.56 Diamond2.41
A light ray strikes a lens parallel to the axis of the lens. Which of the following rays best represents the path of the light ray as it leaves the lens? Ray a
The human focuses on objects that are near & far away because: the lens changes shape
Types of Lenses
A fiber optic, (or light pipe) traps and transmits light inside its core as pictured in the diagram. The light is trapped because of total internal reflection.
Chapter 10 Light.
P H Y S I C S Chapter 8: Light and Optics Section 8A: Light and Refraction.
Perception of Color – Bellwork If a student hiking through Black Canyon in Gunnison calls out and the echo is heard 1.20s later, how far away is the other.
Foundations of Physics
WARM-UP ON YOUR HANDOUT PAGE, PLEASE DO THE FOLLOWING:
Chapter 15 Pretest Light and Refraction
Light Chapter 19.
REFRACTION OF LIGHT. REFRACTION THE BENDING OF LIGHT DUE TO A CHANGE IN ITS SPEED.
Light and Optics Physical Science 92 B Reference: Ch 14 & 15.
What is it? How does it work? How do we use it?. o Electromagnetic Waves display wave behavior o Created by.
Chapter 16.3 – Reflection and Color
Geometric Optics Conceptual MC Questions. If the image distance is positive, the image formed is a (A) real image. (B) virtual image.
Electromagnetic Radiation … aka Light The EM spectrum Not just the “light” we can see… Ranges from low frequency radio waves to high frequency x-rays.
Ch. 14 Light and Reflection. Spherical aberrations – a blurred image produced from rays that reflect at points on a mirror far from the principle axis.
EM SPECTRUM Miscellaneous Wave Properties of Light Light & Color Mirrors & Lenses.
1 GEOMETRIC OPTICS I. What is GEOMTERIC OPTICS In geometric optics, LIGHT is treated as imaginary rays. How these rays interact with at the interface of.
Chapter 18 PowerPoint Chapter Review Questions Mrs. Miller 6A light.
Light Chapter 18.
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