Life of Stars

Low mass stars expand into what after using up the hydrogen in their core

• red giants

• supergiants

• white dwarfs

• protostars

This stage is when a high mass star explodes

• Supergiant

• Red giant

• Supernova

• Black hole

What is the biggest difference between a protostar and a main sequence star?

• Protostars are more massive than main sequence stars

• Protostars do not engage in nuclear fusion

• Stars spend far longer in the protostar phase than their main sequence

• Protostars are hotter than main sequence stars

Our sun is known as a middle-aged, stable star. Also known as a ____________________.

• Gas Giant

• Nebula

• Pulsar

• Main Sequence Star

What stage fills in the blank. Nebula --> Main sequence --> red giant --> ______________ --> white dwarf --> black dwaft

• supergiant

• planetary nebula

• black hole

• supernova

Tags

NGSS.HS-ESS1-3

Which of the following is NOT a final stage of a star. 

• black hole

• black dwarf

• neutron star

• red giant

At which point in its development does a star exit the protostar stage and become a main sequence star?

• When the nuclear fusion process begins

• When collisions in particles result in an increase of temperature

• When gravity squeezes it making it more dense

• When it gets bigger and gravity gets stronger causing it to collide more often

There are 2 points in the life cycle of a star that stars can take different paths. In each of these cases, it is the _______ of the star that determines the path it will take.

• Color

• Mass

• Temperature

• Brightness

A star that has begun nuclear fusion will last for:

• millions of years

• a few thousand years

• as long as the universe survives

• forever

Tags

NGSS.HS-ESS1-1

Protostar

• Star left at the core of a planetary nebula

• a large cloud of gas or dust in space

• the earliest stage of a star's life

• red super giant explodes

Answer explanation