Flag question: Question 1 Question 1 1 pts

What two colors of light would you combine to make the color yellow? 
Group of answer choices 

red and green
red and blue
green and blue
red, green, and blue

Flag question: Question 2 Question 2 1 pts
When we look into the night sky, we are literally looking ….
Group of answer choices

into a black hole
into a worm hole
into the future
into the past

Flag question: Question 3 Question 3 1 pts
The number of waves passing a point each second is the …. 
Group of answer choices

wavelength
frequency
period
amplitude

Flag question: Question 4 Question 4 1pts
Each pixel acts kind of like a …
Group of answer choices

flashlight
lens
solar panel
telescope

Flag question: Question 5 Question 5 1 pts
Which of the four observatories you explored had the worst light pollution? 
Group of answer choices

Kitt Peak National Observatory
McDonald Observatory
Mauna Kea
Griffith Observatory

Flag question: Question 6 Question 6 1 pts
What is the typical dynamic range of an astronomical image? 
Group of answer choices

4:1
60,000:1
256:1
10,000:1

Flag question: Question 7 Question 7 1 pts
How can you increase the resolution of a telescope?
Group of answer choices

use digital cameras instead of film cameras
increase the magnification
increase the aperture/size of the telescope
decrease the light pollution

Flag question: Question 8 Question 8 1 pts
Light pollution has been linked to which of the following? (Select all that apply)
Group of answer choices

Survival of specific bat species
Sea turtle hatchling survival rates
Negative changes to bird migration
Breast cancer rates in women

Flag question: Question 9 Question 9 1 pts
In the sky, you see a red star and a blue star. Which one is hotter? 
Group of answer choices

The red star
They are probably the same temperature
The blue star
The answer will depend on how far away the stars are

Flag question: Question 10 Question 10 1 pts
An an object gets hotter, it will …. 
Group of answer choices

slowly get dimmer
quickly get brighter
quickly get dimmer
slowly get brighter

Flag question: Question 11 Question 11 1 pts
The discovery of light "beyond the rainbow" is attributed to which scientist? 
Group of answer choices

Isaac Newton
Ludwig Boltzmann
Josef Stefan
William Herschel

Flag question: Question 12 Question 12 1 pts
What is the temperature of a star (in Kelvin) if its peak wavelength is 1,200 nm (that is, 1200 x 10^-9 m)? 

Flag question: Question 13 Question 13 1 pts
As an object gets hotter, its spectrum will move toward the _________ end of the spectrum. 
Group of answer choices

red
yellow
green
blue

Flag question: Question 14 Question 14 1 pts
The freezing point of water corresponds to …
Group of answer choices

32 K
273 K
– 32 K
0 K

Flag question: Question 15 Question 15 1 pts
In order for an electron to move from one orbit to another, it must … 
Group of answer choices

reach absolute zero
increase in temperature
hit another electron
emit or absorb light

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