Chapter 14

Question 1

The distance that lights travels in one year, about 9.5 trillion km

Answer 1

Light year

Question 2

How bright a star appears to be from earth

Answer 2

Apparent magnitude

Question 3

The brightness of a star or the power radiated by the star

Answer 3

Luminosity

Question 4

A measure of brightness of celestial objects

Answer 4

Magnitude (brightness)

Question 5

How bright a star actually is

Answer 5

Absolutely magnitude

Question 6

Surface temperature of stars increases as you go down the color spectrum

Answer 6

Color

Question 7

A unit of measurement used to describe distances between celestial objects, equal to 3.258 light-years

Answer 7

Parsec

Question 8

Expressed in terms of solar radius

Answer 8

Size

Question 9

Relationship between size and luminosity

Answer 9

Bigger stars are brighter and smaller stars are dimmer

Question 10

Relationship between temperature and color

Answer 10

Red stars are cooler and blue stars are hotter

Question 11

Relationship between luminosity and color

Answer 11

Brighter stars are blue and dimmer stars are red