Topic 3- Earth in the Universe

Mercury, Venus, Mars, Earth

What are the terrestrial planets?

similar to Earth with dense, rocky material

Terrestrial planets are (details)

Jupiter, Saturn, Uranus, Neptune

What are the jovian planets?

large, low density, no solid surfaces, have moons and many rings

Jovian Planets are (details)

closer

Terrestrial planets are ______ to the sun

15 degrees/hr

How long is Earth's rotation around the sun?

1 day

How long is Earth's revolution?

Milky Way Galaxy

The sun revolves around the center of the

outside the earth's atmosphere

Celestial

A theory on how the universe began and is expanding, how all matter and energy started in a small area, and atoms organized into small celestial bodies

What is the Big Bang Theory?

Doppler Effect

What is evidence of the Big Bang Theory?

Causes relative movement between Earth and other celestial objects

Doppler Effect

basic structural unit of matter

Galaxy

Large ball of gas; produces tremendous energy, shines

Stars

temperature and luminoscity

Star Classification is based on

actual brightness of a star

Luminoscity

90% of stars; smallest and coolest: red dwarfs

Main sequence stars

red-blue-white

Luminoscity of main sequence stars increases

Late stage in a star; 10x diameter of sun, high luminoscity+ low temperature

Giant stars

100-1000x diameter of sun; High luminoscity + low temp

Super Giants

Not white; size of the earth; low luminoscity

White Dwarfs

Dead; no nuclear fusion; No longer emits electromagnetic energy

Black Dwarfs

Star formation

Gas + dust clouds ->

Main sequence

Star formation ->

Black hole

Red Giants (massive) ->

neutron star

Super giants (massive) ->

White dwarf -> Black dwarf

Super giants (low mass) ->

degrees of flatness of an orbit

Ecentricty