Form 2: Star Brightness and Magnitudes

Questions

1. MultiChoice

   What term describes how bright a star looks from Earth?

2. MultiChoice

   What term describes the actual brightness of a star from a standard distance?

3. MultiChoice

   In the magnitude scale, what does a lower or negative number mean?

4. MultiChoice

   Which two factors affect a star's apparent brightness?

5. MultiChoice

   What is the brightest star in the night sky as seen from Earth?

6. MultiChoice

   Why does the Sun appear brighter than any other star?

7. MultiChoice

   What word means the total amount of light energy a star emits per second?

8. MultiChoice

   If you move twice as far away from a light source, how does its brightness change?

9. MultiChoice

   Which celestial object has the lowest (most negative) apparent magnitude?

10. MultiChoice

    If a star looks dim in our sky, what can we conclude?

11. MultiChoice

    At what standard distance is absolute magnitude calculated?

12. MultiChoice

    Which instrument measures light intensity from stars?