Chapter 21 - Section 3 - Lives of Stars Flashcards
nebula
A large cloud of gas and dust in space, spread out in an immense volume.
protostar
A contracting cloud of gas and dust with enough mass to form a star.
How long will a star that is the mass of the sun live?
approximately 2 million years
around 4.6 billion years
about 10 billion years
up to 200 billion years
about 10 billion years
Which of the following is NOT part of the evolution of a low-mass star?
white dwarf
black dwarf
black hole
planetary nebula
black hole
Our sun is a medium-mass star. What phase is our sun most likely to enter next?
red giant
supergiant
planetary nebula
black hole
red giant
Which stage of stellar evolution is unique to high-mass stars?
protostar
supernova
white dwarf
red giant
supernova
white dwarf
The blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space.
What is a white dwarf?
the brilliant explosion of a dying supergiant star
the small, dense remains of a high-mass star after a supernova
the blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space.
a rapidly spinning neutron star that produces radio waves
The blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space.
supernova
The brilliant explosion of a dying supergiant star.
neutron star
The small, dense remains of a high-mass star after a supernova.
pulsar
A rapidly spinning neutron star that produces radio waves.
black hole
An object whose gravity is so strong that nothing, not even light, can escape.
What is a black hole?
a contracting cloud of gas and dust with enough mass to form a star
a large cloud of gas and dust spread out in an immense volume
a type of star with a mass similar to that of the sun
an object whose gravity is so strong that nothing, not even light, can escape
an object whose gravity is so strong that nothing, not even light, can escape
