Science Unit 3: Light & Color Flashcards
White Light
Made up of all the colors of the spectrum
TOP
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BOTTOM
Crest
Amplitude
Rest/Start Position
Wavelength
Trough
How Does Radiant Energy Move
Travels in straight lines and as waves
Relationship With Frequency & Wavelength
Frequency Increases; Wavelength Decreases
Frequency Decreases; Wavelength Increases
Relationship With Energy & Amplitudes
High Energy; High Amplitudes
Low Energy; Low Amplitudes
What Happens When Light Is Absorbed? What Is Created?
It is when light is trapped by matter, therefore creating heat
Two Factors That Determine Intensity
- Brightness of the light
- Distance from the light
How Are Shadows Created
- Light travels in straight lines
- Light strikes an opaque object
- Light is not transmitted
What Happens When An Object Is Transparent
Light passes straight through; produces a clear image
What Happens When An Object Is Translucent
Light still passes through but scatters; produces a fuzzy image
What Happens When An Object Is Opaque
Light can not pass through; no image is seen
What Is A Diffuse Reflection & Why Do We See Them
A reflection that occurs when light bounces off an object at different angles. The result is a fuzzy image. (Rough Surface)
What Is A Regular Reflection & Why Do We See Them
A reflection that occurs when light bounces off an object at the same angle. The result is a clear image. (Smooth Surface)
Labels For Models For Law Of Reflection
- Incidence Ray
- Reflected Ray
- Angle of Incidence
- Angle of Reflection
- Normal
Define Refraction
The change in speed and direction of light when it passes from one kind of material to another
Why Does A Green Shirt Appear Green Under White Light? What is Happening To The Light?
We see certain colors because the color we see is being reflected and all of the other colors are being absorbed. We see green because all of the colors of the spectrum are being absorbed, except for green. Green is being reflected.
What Happens When Light Hits A Prism
Light is refracted
How Does White Light Behave When Hitting Something White Compared To Something Black?
White: Light is reflected; stays cooler
Black: Light is absorbed; creates heat
How Do Filters Affect The Light We See?
Objects can appear to change color if you view them in different color light
What Happens If You Shine A Red Light On A Green Apple?
The green apple appears black in red light because it absorbs all of the available light
ROYGBIV
Red
Orange
Yellow
Green
Blue
Indigo
Violet
