Stars Quiz A >> Astronomy: Exploring Time and Space
TOTAL POINTS 8
1.True or False: Stars, like our Sun, are mostly made of Hydrogen and Helium.
1 point
True
2.The best way to view star formation that occurs in clouds of interstellar dust and gas is using a telescope that observes in _____ wavelengths.
1 point
Gamma Ray
Visible
Ultraviolet
Infrared
3.A main sequence star, like our Sun, is said to be in hydrostatic equilibrium when the inward collapse of matter due to (gravity/pressure) ________ is balanced by an outward (gravity/pressure) ________ created by the energy generated by fusion reactions in the core.
1 point
gravity… pressure
pressure… gravity
4.Sunspots are areas of the Sun’s surface that appear dark because they are _______ than the surrounding regions.
1 point
hotter
cooler
5.Stars come in many different sizes. High Mass stars have (hotter/cooler) ________ surface temperatures and (shorter/longer) _______ lifetimes. Low mass stars have (hotter/cooler) _______ surface temperatures and (shorter/longer) _______ lifetimes.
1 point
cooler… shorter… hotter… longer
hotter… longer… cooler… shorter
cooler… longer… hotter… shorter
hotter… shorter… cooler… longer
6.Hotter stars are more (red/blue) ________, and cooler stars are more (red/blue) _______.
1 point
blue… red
red… blue
7.In which of the following regions of the Hertzprung-Russell Diagram is the Sun located:
1 point
Giants
White Dwarfs
Supergiants
Main Sequence
8.Which of the following elements are created in stars through the process of nucleosynthesis?
1 point
Helium
Water
Hydrogen
Carbon
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