Stars and Galaxies

The category that contains the most stars is...

• Main Sequence

• Supergiants

• Giants

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called

• supernova

• pulsar

• nuclear fusion

• nuclear fission

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Galaxies are composed of (best answer)

• stars

• stars and gas

• stars, dust, and gas

• stars, dust, and gas held together by gravity

What does the Big Bang theory suggest?

• The universe was just there

• The Milky Way is the only solar system

• The universe is continually expanding

• The universe started as a point and is moving towards each other

Tags

NGSS.HS-ESS1-2

What type of galaxy must likely can be described as a large, flat disk surrounded by arms of stars and dus

• elliptical

• irregular

• sprial

• ring

Tags

NGSS.MS-ESS1-2

more massive stars generally have shorter life cycles than less massive stars because massive stars...

• are older

• Use fuel much faster than less massive stars

• have a stronger gravitational pull

• formed earlier than less massive stars

Tags

NGSS.HS-ESS1-1

What layer of a star does nuclear fusion take place

• The photosphere

• The radiation zone

• The convection zone

• The core

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is a characteristic of the White Dwarf?

• Low Luminosity, not very bright

• Extremely hot

• High Luminosity, very bright

• Larger than the earth

Tags

NGSS.HS-ESS1-3

Which of the following statements about Milky Way is not true?

• It is a spiral galaxy.

• It is a constellation of asteroids and comets.

• It consists of approximately 200 billion stars.

• The Sun is one of the stars in Milky Way.

Tags

NGSS.HS-ESS1-4

Our Solar System is located in the galaxy of

• Andromeda

• Ursa Major

• Milky way

• Large Magellanic Cloud

Tags

NGSS.MS-ESS1-2