Space Exploration - Section 11.1 Quiz

Which of the following statements about stars is false?
1. Once a star is made, it will exist until the end of the universe
2. Stars are made inside nebulae
3. Stars radiate energy
4. Stars are the most common celestial bodies in the universe
What force acts on interstellar gases and dust to ultimately create a star?
1. Gravity
2. Static electricity
3. Centripetal force
4. Electromagnetism
A star glows because
1. nuclear fusion is occurring in its core.
2. its core is filled with radioactive elements.
3. nuclear fission is occurring in its core.
4. it is burning off helium gas.
What is the last stage of evolution our Sun will eventually undertake?
1. Black dwarf
2. Red dwarf
3. White dwarf
4. Supernova
A black hole
1. can be detected by its gravitational effect.
2. is created from stars much smaller than our sun.
3. accelerates light around it creating a blue shift.
4. could be created from our sun.
Which of the following statements about the Russell-Hertzsprung diagram is true?
1. Massive stars tend to be more luminous
2. As a star's mass increases, so does its temperature
3. Blue stars are always the most luminous stars
4. The smallest stars are always red
Our Sun
1. is not hot enough to produce heavier elements.
2. contains only hydrogen and helium.
3. will exist another 50 billion years.
4. will explode into a neutron star.
Antares, a star, has a temperature of about 3500 K and a luminosity about 65,000 times that of our Sun. It is therefore likely to be a
1. red giant.
2. red dwarf.
3. white dwarf.
4. super giant.
O2 Eridani B, a star, has a temperature of about 11,000 K and a luminosity about 0.003 that of our sun. It is therefore likely to be a
1. white dwarf.
2. black dwarf.
3. red dwarf.
4. super giant.
The light a star produces can reveal many of its characteristics. Which of the following is not revealed by a star's light spectrum?
1. Rotation
2. Temperature
3. Age
4. Direction of travel