Stars
H - R Diagram
Miscellaneous
Galaxies
Universe
100
The Color of a Star depends on its: a. Size b. Temperature c. Shape d. Magnitude
Answer: b. Temperature
100

The H-R Diagram shows the relationship of a star's surface temperature and its: a. Color b. Apparent Magnitude c. Size d. Absolute Magnitude

Answer: d. Absolute Magnitude

100
Distance of stars is measured using what?
What is light years.
100
Scientists classify galaxies by: a. Size b. Shape c. Age d. Color
Answer: b. Shape
100

How many stars are in our solar system

What is one (the sun)

200
The color red represents the color of the __________ stars in the universe
Answer: Coolest
200
What type of star has used up all of its Hydrogen and is the leftover center of an older star? (Last phase of the star life cycle) a. Red Giant b. Supernova c. White Dwarf d. Main Sequence
Answer: c. White Dwarf
200

What kind of star is the sun? (Refer to temperature, brightness)

Answer: Average temperature and brightness; main sequence.

200
what binds a galaxy together? a. stars b. gravity c. a neutron star d. a globular cluster
Answer: b. gravity
200
Stars are composed mainly of what two elements?
Hydrogen and helium
300
Which of the following statements is true of stars: a. New stars form from the material of old stars. b. A star does not change its size or temperature during its life. c. The shortest stage in a star's life cycle is the main sequence. d. When a star dies, none of its material returns to space.
Answer: a. New stars form from the materials of old stars
300
Which of the following shows the sequence of a star's life cycle from its earliest stage to its latest stage? a. white dwarf, main sequence, red giant b. main sequence, red giant, white dwarf c. red giant, white dwarf, main sequence d. main sequence, white dwarf, red giant
Answer: b. Main Sequence, Red Giant, White Dwarf
300
How bright a star would be if it were located at a standard distance. Synonymous with luminosity.
Absolute magnitude.
300
Scientists think the Milky Way probably is: a. An Irregular Galaxy b. An Elliptical Galaxy c. A Good Brand for Chocolate d. A Spiral Galaxy
Answer: d. A Spiral Galaxy
300

an object so massive and dense that not even light can escape its gravitational pull

What is a black hole?

400

What is the process stars go through that allows them to shine?

Nuclear Fusion

400

What color are the hottest stars on the diagram?

Blue.

400

Approximately how many Earth's could fit in the sun?

1,000,000

400
A collection of hundreds of galaxies is called a?
Cluster
400

Distance light travels through space in one year

What is a light year?

500

What determines whether a star will form a black hole?

Mass

500

Astronomers collect data about stars using what?

Answer: Telescopes, space probes, observations, measurements (math).

500

This is the name of our Sun.

What is Sol?

500
Astronomical units are used to measure the distance of which specific star?
Sun
500

What scientific theory explains the early development of the universe?

What is the Big Bang theory?

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