5.2 Test Review

What is the definition of apparent magnitude?

• The brightness of a star if all the stars were at a uniform distance from Earth

• The cooler areas on the sun

• The brightness of a star as seen from Earth

• A cloud of gas and dust

What does absolute magnitude refer to?

• The brightness of a star as seen from Earth

• The brightness of a star if all the stars were at a uniform distance from Earth

• Found in the space between stars in galaxy

• The cooler areas on the sun

Where is the interstellar medium found?

• The cooler areas on the sun

• Within clouds of gas and dust

• In the space between stars in galaxy

• Just beyond the Earth's atmosphere

What are sunspots?

• Bright spots on the sun

• Dark spots we see when we look at the sun for too long

• The warmer areas on the sun

• The cooler areas on the sun

What is a nebula?

• The "graveyard" of stars

• What we find in the space between stars

• A cloud of gas and dust

• A dead star

What is the small, hot, extremely dense core left after a star collapses called?

(a)  

• white dwarf
• red giant
• red dwarf
• brown dwarf

During the main-sequence stage, energy is generated in a star's core when

​ (a)   fuses into ​ (b)   .

• hydrogen
• helium
• iron
• uranium
• carbon
• oxygen
• nitrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

How long would a star with the sun's mass stay on the main sequence?

• until it makes iron

• until it makes uranium

• as long as it fuses helium

• as long as it fuses hydrogen

Tags

NGSS.HS-ESS1-1

When does a protostar become a star?

• Carbon fusion ends

• nuclear fission ends

• nuclear fusion begins

• nuclear fission begins

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is a large, bright star whose hot core has used most of its hydrogen?

• nova

• giant

• pulsar

• supernova

Tags

NGSS.HS-ESS1-1