WorksheetsLight: Color, Intensity, Shadows, & Polarization
Total questions: 20
Worksheet time: 14mins
When the three primary colors mix they produce?
Red, Green, Blue
Black
White
Magenta, Yellow, Cyan
As one approaches (gets closer) to a light bulb, the brightness of the bulb....
Increases (brighter)
Decreases
Stays the same
Changes in some unknown way
A student stands 10 feet away from a light bulb. The student walks toward the light bulb to a 5 feet distance. Which is true? Intensity = 1 / d2
The bulb appears 2x's brighter
The bulb appears 4x's brighter
The bulb appears 5x's brighter
The bulb appears 25x's brighter
What color has a longer wavelength?
Red
Yellow
Blue
Violet
What color has the highest frequency?
violet
red
blue
green
Light always travels in a .........................line.
straight
curved
elliptical
none
A microwave oven emits radiation at a wavelength of 0.050 m. What is the frequency of this radiation?
6.67 x 107 Hz
2.00 Hz
1.50 x 106 Hz
6.00 x 109 Hz
Why does a banana look yellow?
it reflects yellow wavelengths of light and absorbs most other wavelengths
it absorbs yellow wavelengths of light and reflects most other wavelengths
what is the correct order of the visible light spectrum?
red, yellow, green, orange, blue, violet and indigo
indigo, blue, violet, orange, yellow, green and red
violet, blue, indigo, green, yellow, orange and red
red, orange, yellow, green, blue, indigo and violet
The darkest part of a shadow is called the...
shadow
umbra
penumbra
pentagram
