life cycle of stars

life cycle of stars

Poll

how ya doin today?

• GREAT

• Good

• meh

• Me = stress

Multiple Choice

Based off of the picture alone, what type of galaxy is this?

• Spiral

• elliptical

• irregular

Multiple Choice

What is the sun?

• huh? The sun is ... its a sun...

• The sun is a large planet

• The Sun is a huge, gigantic Star

• The sun is an average star, it looks big because it is the closest one to us

EMS

- wavelengths

-frequencies

-temperature / energy

Multiple Choice

Click on the picture to enlarge it. What type of light has a wavelength of 10^-5

• radio

• infrared

• visible

• x-ray

Multiple Choice

click on the picture to enlarge it What color stars are the hottest?

• Red

• Orange

• Yellow

• Blue

Stars change over time. This is the life of the Stars.

Multiple Choice

All stars start as gas and dust in a(n)

• nebula

• black hole

• red giant

• black dwarf

Multiple Choice

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion

• gravity

• hydrogen

• iron

Multiple Choice

Stars can take different paths due to having different _____________

• Temperature

• mass

• brightness

• color

Multiple Choice

After a supergiant, a high mass star explodes. This explosion is called?

• supernova

• red giant

• black hole

• planetary nebula

Multiple Choice

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

• supergiant

• planetary nebula

• black hole

• supernova

Multiple Choice

What are the three things that can be left behind after a stars dies?

• Planetary nebula, black hole, white dwarf

• Plasma circle, white dwarf, black hole

• White dwarf, black hole, neutron star

• White hole, brown dwarf, asteroid.

Multiple Choice

What is the most dense type of star?

• brown dwarf star

• neutron star

• white dwarf star

• black dwarf star

Multiple Choice

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion

• gravity

• hydrogen

• iron

Multiple Choice

A high mass star can end as this stage, which is so dense that not even light can escape!

• black dwarf

• white dwarf

• supernova

• black hole

All Stars go through a similar sequence.

Our Sun is no exception. The End is inevitable. =] .... but not for another 4-5 billion years