Exploring the Life Cycle of Stars

Where are stars born?

• In galaxies

• In nebulae

• In supernovae

• In black holes

What is the initial stage of a star called?

• Hypergiant

• Protostar

• Neutron star

• White dwarf

What process generates a star's heat and energy?

• Chemical reaction

• Thermonuclear fusion

• Gravitational collapse

• Magnetic field interaction

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

How are stars classified by surface temperature?

• By their age

• By spectral classes

• By their color

• By their size

Which spectral class represents the hottest stars?

• M

• O

• G

• K

What is the term for the amount of light a star emits?

• Brightness

• Radiance

• Intensity

• Luminosity

What happens to less massive stars like our sun at the end of their lifecycle?

• They become black holes

• They turn into neutron stars

• They explode in a supernova

• They release material and become white dwarfs

Tags

NGSS.HS-ESS1-1

What is left behind after a massive star undergoes a supernova?

• A white dwarf

• A neutron star

• A black hole

• A planetary nebula

What do the most massive stars become after collapsing?

• White dwarfs

• Neutron stars

• Black holes

• Hypergiants

What do the remnants of stars contribute to the universe?

• Dark matter

• Heavier elements

• New galaxies

• Cosmic rays

Tags

NGSS.HS-ESS1-3