5 Written Questions
5 Matching Questions
- Label on a H-R Diagram the following: Main sequence, red giant, supergiant, white dwarf, and our sun.
- Main sequence
- Apparent magnitude
- When is a star "born?"
- a The brightness of a star as seen from Earth.
- b The brilliant explosion of a dying supergiant star. Stage after main sequence for high mass stars.
- c A diagonal area on an H-R diagram that includes more than 90 percent of all stars
- d When the contracting gas and dust becomes so hot that nuclear fusion starts.
- e see H-R Diagram in book and on worksheets
5 Multiple Choice Questions
- the mass of our sun. So, three solar mass is three times the mass of our sun
- a black hole
- When gravity pulls some of the gas and dust in a nebula together and there is enough mass to form a star (nuclear fusion has not begun)
- main sequence star, 4.6 billion years old, middle of life, medium sized, yellow- 6,000 degrees celsius, center of our solar system
- Absolute magnitude
5 True/False Questions
How are mass and the length of a star's life related? → yellow and middle (pretty close to center)
white dwarf → The blue-white hot core of a star that is left behind after its outer layers have expanded and defined out into space. The death of low to medium-mass stars
3 main characteristics used to classify stars → temperature (color), mass, and absolute magnitude (also diameter size, stage in life cycle)
Absolute magnitude → The brightness of a star as seen from Earth.
Two pieces of evidence that astronomers use as evidence of the presence of a black hole: → Main Sequence