Unit 4 Study Guide

Which statement best describes stars?

• large planets that are composed mostly of gases

• celestial bodies made up of gas that give off light

• faint dots of light that can be seen from Earth’s surface

• objects that form in the outer parts of the solar system

The chart below displays the names of different stars and their colors. Which of the groups below best orders the stars from hottest to coolest?

• A. Antares, Spica, Sun, Aldebaran

• B. Sun, Spica, Antares, Aldebaran

• C. Spica, Sun, Aldebaran, Antares

• D. Antares, Aldebaran, Sun, Spica

One physical property of a star is absolute brightness. Which of the following is used in determining the absolute brightness of a star?

• how bright the star actually is

• how bright the star appears to be from the Earth

• the number of prominences the star makes

• the direction the star rotates

Why do other stars appear so much smaller than the sun?

• They are much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

Tags

NGSS.5-ESS1-1

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

Tags

NGSS.MS-ESS1-3

What is the name of the gas/dust clouds that form stars?

• Nebulas
• Protostars 
• Supernova
• Neutron Star

Tags

NGSS.HS-ESS1-3

What category on the H-R diagram has the majority or the most stars?

• Super giants
• White Dwarfs
• Giants
• Main Sequence

Tags

NGSS.HS-ESS1-3

Apparent (magnitude) brightness is affected by a star's distance from Earth.

• False
• True

Which property of a star is the brightness of a star at a standard distance?

• Apparent (magnitude) brightness
• Absolute (magnitude) brightness
• Luminosity
• Size of the star

All stars are formed from a  __________?

• giant
• black hole
• white dwarf
• nebula

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3