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- 1. Multiple Choice
Which of the following EM radiation has the highest frequency and energy?
X-rays
Infrared
Visible light
Microwaves
- 2. Multiple Choice
How do stars form?
Stars form directly from black holes as they are created from supernovae.
Stars formed as gravity split off from the combined force just after the Big Bang.
Stars formed as soon as hydrogen atoms began being mass-produced about 380,000 years after the Big Bang.
Stars form as the dust and gas of the Universe are drawn in and condensed by gravity to smaller and smaller areas.
- 3. Multiple Choice
Clouds of gases and dust that absorb ionizing ultraviolet radiation from nearby hot stars or star remnants and reemit it as visible light are called:
bright reflection nebulae.
bright emission nebulae.
supernova remnants.
dark nebulae.
neutron stars.
- 4. Multiple Choice
Identify this object.
a white dwarf star
the planet Jupiter
the Eskimo nebula
the Pillars of Creation in the Eagle Nebula
- 5. Multiple Choice
The Crab Nebula is actually:
a planetary nebula.
a white dwarf star.
a red supergiant star.
a supernova remnant.
- 6. Multiple Choice
Which of the following is classified as a dark nebula?
- 7. Multiple Choice
Astronomers use the term _____________________ to describe how bright a star appears from Earth.
apparent magnitude
radiometry
luminance
Doppler Shift
- 8. Multiple Choice
When the core of a middle-sized star shrinks and the outer layers of the star are expelled into space, which of the following are formed? CHOOSE ALL THAT APPLY!
a planetary nebula
a black hole
a neutron star
a white dwarf star
- 9. Multiple Choice
Nearly all of Earth's energy needs are met by:
wind power.
the Sun.
oil and water.
gamma rays.
- 10. Multiple Choice
Which of the following is the "engine" for stars?
gravity
chemical combustion
thermonuclear fusion
electromagnetism
- 11. Multiple Choice
In a binary star system, the stars are orbiting each other.
True
False
- 12. Multiple Choice
A star at apparent magnitude +1.2 would appear brighter to us than a star at apparent magnitude +3.9.
True
False
- 13. Multiple Choice
Which of these stars has the highest surface temperature?
- 14. Multiple Choice
Which of the following have we named "the Trapezium "?
- 15. Multiple Choice
This is an example of:
an elliptical galaxy.
a spiral galaxy.
a supernova remnant.
a planetary nebula.
- 16. Multiple Choice
Which type of galaxy contains mostly young stars?
irregular galaxies
elliptical galaxies
spiral galaxies
barred-spiral galaxies
- 17. Multiple Choice
The first galaxies formed:
about 1 billion years ABB.
about 200 million years ABB.
about 380000 years ABB.
about 4.6 billion years ago.
- 18. Multiple Choice
Astronomers now agree that the Milky Way is shaped like this.
True
False
- 19. Multiple Choice
Galaxies may be partially held together by:
thermonuclear fusion.
dark matter.
dark energy.
the Doppler Effect.
- 20. Multiple Choice
Our Milky Way, for instance, is in the _____________, a galaxy group about 10 million light-years across that also includes the Andromeda galaxy and its satellites.
Andromeda Galaxy
Trapezium
Local Group
Large Magellanic Cloud
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