Stars & HR Diagrams

A collection of stars, dust, and gas bound together by gravity is...

• Universe
• Solar System
• Planet
• Galaxy

The distance that light travels in one year...

• Light year
• Quantumyear
• Stellar-year
• 1 million kilometers

Which comes first in the following sequence of stars?

• Main Sequence Star
• Red Giant
• White Dwarf
• Black Dwarf

A nebula can eventually turn into...

• a star.
• a star and all of the planets that orbit it.
• a galaxy.
• a constellation.

A Super Giant star will eventually turn into...

• a neutron star or a black hole.
• a red giant.
• a main sequence star.
• a white dwarf or a black dwarf.

What is the graph that shows the relations between a star's surface temperature and absolute magnitude?

• H-R Diagram
• Star Cluster Map
• Einstein's Diagram
• Newton's Chart of Stars

How do stars generate energy?

• Fusion of hydrogen and helium atoms
• Fission of hydrogen and helium atoms
• Burning hydrogen
• Burning helium

Lightyear is used by scientist to measure what?

• Distance
• Time
• Energy

Nebulae are considered "Stellar Nurseries" because...

• Planets are created from the gases
• Stars form from them
• Asteroids are formed from them

The Hertzprung Russell Diagram consists of two axis that are labelled...

• Luminosity and Size
• Luminosity and Temperature
• Luminosity and Age