WorksheetsStars and Galaxies Review
Total questions: 28
Worksheet time: 17mins
What was the first stage of our Sun’s life cycle?
Nebula
Red Giant
Main Sequence Star
White Dwarf
What will be the last stage of our Sun’s life cycle?
Nebula
Red Giant
Main Sequence Star
White Dwarf
Is the surface temperature of White Dwarf stars higher or lower than Red Supergiants?
Higher
Lower
What type of star has a high temperature and a low luminosity?
White Dwarfs
Blue Giants
Red Supergiants
Smaller Main Sequence stars
What type of star has a low temperature and a high luminosity?
White Dwarfs
Blue Giants
Red Supergiants
Smaller Main Sequence stars
Which star is brighter than the sun?
Sirius B
Procyon B
Van Maanan's Star
Aldebaran
Which of the following best describes the difference between main sequence stars and supergiants?
Main sequence stars are cooler and brighter than supergiants.
Main sequence stars are hotter and dimmer than supergiants.
Main sequence stars are cooler and dimmer than supergiants.
Main sequence stars are hotter and brighter than supergiants.
Where would you classify a star with a temperature of 20,000 K with a luminosity of 0.001?
White Dwarf
Main Sequence
Giant
Supergiant
Where would you classify a star with a temperature of 3,000 K with a luminosity of 10,000?
White Dwarf
Main Sequence
Giant
Supergiant
An image shows galaxies moving away from Earth, with their light shifting toward the red end of the spectrum. What piece of evidence is this representing?
Cosmic background radiation
Redshift and the expansion of galaxies
Blueshift and the contraction of galaxies
The age of the universe
Which of the following explains how redshift provides evidence for the expansion of the universe?
Redshift shows that galaxies are moving toward Earth, indicating a shrinking universe.
Redshift shows that galaxies are moving away from Earth, suggesting the universe is expanding.
Redshift shows that galaxies are stationary, implying the universe is stable.
Redshift shows that the universe is cooling, which supports the contraction theory
Which one of the following statements supports the big bang theory?
(Select two)
Cosmic microwave background radiation is found throughout space.
Redshift shows that galaxies are moving away from each other.
Matter is spread unevenly throughout the universe.
The universe has always existed and been the same.
Which one of the following statements supports the steady state model?
(Select two)
Cosmic microwave background radiation is found throughout space.
Redshift shows that galaxies are moving away from each other.
Matter is spread unevenly throughout the universe.
The universe has always existed and been the same.
Which elements are most abundant in the visible universe?
Hydrogen and Carbon
Carbon and Helium
Hydrogen and Oxygen
Hydrogen and Helium
The Cosmic Background Radiation is:
the remaining energy from the big bang.
incredibly hot.
visible to the human eye.
only located in certain places in the universe.
Which of the following theories involves all matter starting from a single point.
Steady State Theory
The Big Crunch
The Big Bang Theory
Multiverse Theory
The ______ of a star determines its life cycle.
gravity
mass
age
color
Choose the image that represents the irregular galaxy
Choose the image that represents the spiral galaxy
Choose the image that represents the elliptical galaxy
