ESS Unit 2-1: Star Formation and Life Cycle Test

What is the primary process that generates energy in stars?

• Nuclear fission
• Nuclear fusion
• Chemical combustion
• Radioactive decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

In the context of stellar evolution, what does the term 'main sequence' refer to?

• The initial formation of a star
• The longest and most stable period of a star's life
• The final stages of a star's life
• The period when a star becomes a red giant

What is the primary fuel for nuclear fusion in most stars?

• Helium
• Carbon
• Oxygen
• Hydrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What happens to a star when it exhausts its core hydrogen fuel?

• It immediately explodes
• It begins to contract
• It begins to expand
• It turns into a black hole

What is the term for a cloud of gas and dust in space where stars are born?

• Stellar nursery
• Cosmic cloud
• Nebula
• Star cradle

What force causes a nebula to begin collapsing to form a star?

• Electromagnetic force
• Strong nuclear force
• Weak nuclear force
• Gravity

Tags

NGSS.HS-PS2-4

What is the final stage in the life cycle of a low to medium mass star?

• Red giant
• White dwarf
• Neutron star
• Black hole

Tags

NGSS.HS-ESS1-1

What is the term for the explosive death of a massive star?

• Nova
• Supernova
• Hypernova
• Kilonova

Which of the following is NOT a possible end stage for a star?

• White dwarf
• Neutron star
• Black hole
• Red dwarf

What keeps a main sequence star from collapsing under its own gravity?

• Magnetic fields
• Rotation
• Nuclear fusion reactions
• Solar wind

Tags

NGSS.HS-ESS1-1