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Light and Color

Physical Science Chapter 4 Unit B (Light and Color only)

QuestionAnswer
True or False: Ancient Greeks believed that light moved in waves. False: Ancient Greeks believed that light traveled in straight lines, contained particles, and traveled at high speeds.
Describe how to find a wave's amplitude. The amplitude is the distance between a trough or crest and the midpoint of the wave.
When light bounces off a rough surface, an image is... scattered.
When looking into a tank of water to drop a penny into a small glass in the tank, what do you have to allow for when aiming for the small glass? You will have to allow for refraction..the bending of light waves as they move through air, glass, and water.
Be able to identify the coherent light wave pattern from a laser light. The light of a single wavelength has all the waves lined up.
To see all the colors in the visible light spectrum, your eyes need to sense only... 3 primary colors: red, blue, and green
The sensation you get when very little light of ANY color enters your eyes is of... black
2 properties for objects to transmit light colorless and transparent
The extra energy given off in packets or bundles when atoms lose some energy photon
The bouncing of a wave off a smooth surface... reflection
The bending of a light wave traveling between different clear substances... refraction
Be able to identify how light waves reflect off a concave mirror and a convex mirror. Be able to identify how light waves refract through a convex lens and a concave lens.
DaVinci believed that light behaved in a way similar to... sound waves
The top of a wave... crest
The bottom of a wave... trough
When light bounces back from a smooth surface, an image is... reflected
In order for Mary to scoop out a small rock in the bottom of a fish tank, what she will need to allow for to aim accurately for the small rock? Mary will have to allow for refraction, the bending of light waves through air, glass, and water.
White light can be separated into... Colors of the rainbow: Roy G. Biv
When you mix red, blue, and green PAINT, what gets reflected? Very few wavelengths are reflected back to your eyes.
Light travels through clear glass because the glass is... transparent
The number of waves that pass a point in a given amount of time... frequency
Used to play CD's... laser light
Light-sensitive cells in the eye... cones
This does not allow light to pass through... opaque
Allows light to pass through so objects on the other side can be seen... transparent
Red Monkeys In Very Ugly X-Ray Glasses = the electromagnetic spectrum from least energy to most energy Radio; Microwave; Infrared; Visible light; Ultraviolet; X-ray; Gamma = the electromagnetic spectrum from least energy to most energy
Always remember...Light can be RATTOed Light can be Reflected; Absorbed; and Transmitted Through Objects.
Speed of light per SECOND... about 186,000 miles per SECOND
Speed of light per HOUR... almost 700 million miles per HOUR
Speed of light per YEAR... Almost 6 trillion miles per YEAR..That is a LIGHT YEAR!
Created by: fernanm
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