Astronomy

Which of the following do all terrestrial planets have in common

• matching atmospheres

• small and rocky

• considered gas planets

• ring systems

The average distance between the Earth and the sun is measured in which type of unit?

• planetary

• astronomical

• space

• light

Which of the following describes the groups from smallest to largest by mass in the visible universe?

• universe--superclusters-- galaxy clusters-- galaxies--stars

• stars--galaxies--galaxy clusters--superclusters--universe

• stars--galaxies--galaxy clusters--superclusters--dark matter-- universe

• stars--dark matter--galaxies--galaxy clusters--superclusters--universe

Modern theory of the universe's origin: Which graph shows the trend in the volume of the universe over time?

• 
• 
• 
• 

What is structure Y?

• star

• planet

• nebula

• galaxy

What type of star is our sun?

• dwarf

• main-sequence star

• giant stars

• supergiant stars

In comparison to other stars, the sun is

• an average size compared to other stars, powered by fusion

• very small compared to other stars, powered by fusion

• very large compared to other stars, powered by fusion

• average size compared to other stars, powered by fission

More massive stars usually have shorter lifespans because

• they are older

• formed earlier than smaller stars

• have a stronger gravitational pull on each other

• use fuel faster than massive stars

What determines the fate of a star as it develops?

• mass

• location

• luminosity

• temperature

Which number is a protostar?

• 1

• 2

• 3

• 4