Humans are most sensitive to light that is this color??
What is yellow-green
100
Much of sunlight is this color?
What is yellow
100
Why is the sky blue?
What is air molecules in the sky act as tiny resonators that scatter blue light (the molecules absorb and then re-emit blue light, scattering it in all directions).
100
Tennis ball color is seen easily when and because the color is . . .?
What is yellow-green
200
What does light NOT pass through?
a. transparent
b. opaque
c. reflective
d. none of the above
What is b. opaque
200
Colors seen on TV are from color _________.
What is addition
200
Colors of light correspond to their light __________.
What is frequencies
200
Why are sunsets red?
What is The longest path is at sunset or rise and a lot of high frequency light is scattered (blue light from the sky is scattered by Earth's atmosphere.)
200
What are the three primary colors of light for additive color mixing?
What is yellow, green, and blue.
300
Which is NOT an electromagnetic wave?
a. sound
b. radio
c. light
d. none of the above
What is a. sound
300
Colors seen in photographs are from color____________.
What is subtraction.
300
What are complementary colors?
What is colors that produce white light when added together.
300
T/F: Clouds transmit UV light.
What is TRUE
300
T/F: Electromagnetic waves are longitudinal.
What is False-they are transverse (they also can travel through a vacuum).
400
Why are solar eclipses seen less commonly than lunar eclipses?
What is Earth's shadow on the moon is larger than on the moon's shadow on the Earth.
400
What is the true color of water?
What is greenish-blue
400
What is the name of the instrument that tells what stars are made of?
What is spectroscope
400
T/F: Light waves are longitudinal waves.
What is False-they are transverse
400
How far is a light-second?
What is 300,000 km
500
Vibrating charged particles are from __________ waves.
What is Electromagnetic
500
What color are the colored dots that make up the color on a TV screen?
What is red, blue, and green
500
Polarized sunglasses block the glare from __________.
What is reflections.
500
If two polarizing filters are held with their polarization axes at right angles to each other, the amount of light transmitted compared to when their axes are parallel is?