2/15 Warm-Up

Characteristics used to classify stars include

• distance, size, and color.

• size, distance, and brightness.

• color, brightness, and distance.

• size, brightness, and temperature.

What color are the coolest stars?

• blue-white

• yellow

• red

• orange

The absolute brightness of a star depends on its

• distance and temperature.

• size and temperature.

• color and temperature.

• distance and color.

The brightness of a star as seen from Earth is its 

• apparent brightness.

• absolute brightness.

• parallax.

• reflective brightness.

The brightness the star would have if it were a standard distance from earth.

• Apparent Brightness

• Absolute Brightness

• Brightness

• Candid Brightness

What color of star is the hottest?

• Blue

• Red

• Yellow

• Orange

The color of a star depends on its

• size

• temperature

• shape

• magnitude

Stars give off heat and light in a process called ___________.

• nuclear fusion

• supernova

• luminosity

• spectroscopy

The luminosity of a star describes its ______________.

• brightness

• temperature

• age

• color

What determines the life cycle path that a star will take?

• Mass of the star

• Temperature of the star

• Location of the star

• Speed of a star's rotation