Lives of Stars

How do astronomers classify stars?

• Luminosity and Brightness

• Brightness and Color

• Temperature and Luminosity

• Distance and Color

Using the HR Diagram on the board, which quadrant has the coolest, brightest stars?

• Quadrant 1

• Quadrant 2

• Quadrant 3

• Quadrant 4

What is the relationship between the mass of a star and it's lifespan?

• The more massive the shorter lifespan

• the more massive the longer lifespan

• the less massive the shorter lifespan

• there is no relationship

When is a star born?

• When a planet explodes
• When a galaxy collapses
• When nuclear fusion begins

• When a black hole implodes

How does a star lose mass?

• Nuclear fusion

• Nuclear fission

• Quantum tunneling

• Stellar wind

What determines how a star dies?

• Its color
• Its size
• Its mass
• Its brightness