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