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- 1. Multiple Choice
Eduardo observes the stars through his telescope. He states that the star Regulus is brighter than the star Rigel. In reality, Rigel has a greater absolute brightness than Regulus. What can explain Eduardo’s observation?
Regulus is much closer to Earth than Rigel
Rigel is much closer to Earth than Regulus.
Regulus is a hotter star than Rigel
Rigel is a hotter star than Regulus
- 2. Multiple Choice
The graph above shows the relative sizes and surface temperatures of four groups of stars. The surface temperature of the stars is measured in Kelvin (K). The Sun is part of the main sequence group.
According to the graph, the Sun is best described as
average sized, with a surface temperature of approximately 6,000 K
massive sized, with a surface temperature of approximately 10,000 K
massive sized, with a surface temperature of approximately 20,000 K
average sized, with a surface temperature of approximately 8,000 K
- 3. Multiple Choice
One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?
the constellation the star is in
the number of times the star rotates
the distance the star is from Earth
the number of prominences the star makes
- 4. Multiple Choice
Which statement most accurately describes the relationship between the color and temperature of stars?
yellow stars are cooler than red.
Red stars are hotter than white stars
White stars are cooler than yellow stars
Blue stars are hotter than red stars
- 5. Multiple Choice
Which of the groups below best orders the stars from hottest to coolest?
Antares, Spica, Sun, Aldebaran
Sun, Spica, Antares, Aldebaran
Spica, Sun, Aldebaran, Antares
Antares, Aldebaran, Sun, Spica
- 6. Multiple Choice
The sun is an averaged sized star that was formed by the same processes that form most other stars. Which of the following describes what astronomers would expect to see if they examined most other stars?
Most are the same age
They all use the same fuel
Most appear to be white in color
Most are found outside of galaxies
- 7. Multiple Choice
In the following diagram, which star is most likely to be the coolest and dimmest?
C
A
B
E
- 8. Multiple Choice
What is absolute magnitude?
It is the relative brightness of a star.
It is how bright a star looks relative to how close it is to Earth.
It is the exact brightness.
it does not have to do with brightness
- 9. Multiple Choice
What is Apparent magnitude?
It is how bright a star looks relative to how close it is to Earth.
exact brightness
how bright a star actually is
brightness doesn't matter
- 10. Multiple Choice
What is the composition of a star?
made of gas mostly hydrogen and helium and emits light.
Made mostly of nitrogen and oxygen and emits light.
It is made of carbon dioxide and emits light.
It is made mostly of argon and nitrogen and emits light.
- 11. Multiple ChoiceTrue or False
The Sun is the biggest star in the sky.TrueFalse - 12. Multiple ChoiceWhy do other stars appear so much smaller than the sun?They are much smallerThey are so far awayThey are not as brightThey are dwarf stars
- 13. Multiple ChoiceWhat color of star is the hottest?BlueRedYellowOrange
- 14. Multiple ChoiceWhat color of star is the coolest?RedYellowBlueWhite
- 15. Multiple ChoiceWhat is the name of the gas/dust clouds that form stars?NebulasProtostarsSupernovaNeutron Star
- 16. Multiple Choice
The brightness of a star as seen from earth
Apparent magnitude
Awesome magnitude
Absolute magnitude
Amazing magnitude
- 17. Multiple Choice
Brightness determined by DISTANCE from the earth
Amazing magnitude
Absolute magnitude
Apparent magnitude
Awesome magnitude
- 18. Multiple Choice
Why can the apparent magnitude be inaccurate?
It doesn't exist
It may not be brighter compared to another star but instead just closer
It only shows the brightness of stars too far away for humans to detect
the scale is messed up
- 19. Multiple ChoiceWhat are stars?Rocky bodiesBurning balls of gas5 pointed shapesHollywood actors
- 20. Multiple ChoiceWhich star is closest to Earth?BetelgeuseOrionthe sunAntares
- 21. Multiple ChoiceThe color of a star tells us itsmagnitudetemperaturesizeage
- 22. Multiple ChoiceGalaxies are composed ofbillions of starsa star and the planets that orbit around itall of the bodies and objects in space
- 23. Multiple ChoiceMost stars are made of which gases?Hydrogen onlyHydrogen and LithiumHydrogen and SodiumHydrogen and Helium
- 24. Multiple ChoiceWhen a nebula heats up, a "baby" star forms in the middle. It is called asupernovasupergiantwhite dwarfprotostar
- 25. Multiple Choice
Stars that are very bright, large & burn at the highest temperature
Blue Giant stars
Red Giant
Neutron stars
Proto stars
- 26. Multiple Choice
Stars appear to twinkle because
of their temperature
their light is passing through our atmosphere
they constantly change direction
to make a wish on
- 27. Multiple Choice
The sun's yellow color indicates that it is a
star made up of stable gases
that it is a mid-range temperature star
that it is a low-range temperature star
that it is a high-range temperature star
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