Understanding Stars

Where are stars born?

• In nebulae

• In supernovas

• In black holes

• In galaxies

What is the initial stage of a star called?

• Black hole

• Protostar

• White dwarf

• Neutron star

What process generates a star's heat and energy?

• Gravitational collapse

• Thermonuclear fusion

• Magnetic fields

• Chemical reaction

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

How are stars classified by surface temperature?

• By spectral classes

• By their color

• By their age

• By their size

Which spectral class represents the hottest stars?

• K

• G

• O

• M

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 when they die?

• They explode as supernovas

• They turn into neutron stars

• They become black holes

• They leave behind a white dwarf

What is left behind after a massive star explodes in a supernova?

• A planetary nebula

• A neutron star

• A white dwarf

• A black hole

What do the most massive stars become after collapsing?

• Red giants

• Black holes

• Neutron stars

• White dwarfs

What do the remnants of stars contribute to the universe?

• New galaxies

• Cosmic rays

• Heavier elements

• Dark matter

Tags

NGSS.HS-ESS1-3