Earth Science And Astronomy

Front 1

4 Components of ESci

Back 1

atmoshpere, hydrosphere, biosphere, geosphere

Front 2

Branches of ESci

Back 2

Geology, Oceanography, Meteorology, Astronomy

Front 3

Science that studies the universe

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Astronomy

Front 4

States that at one time, the universe was confined to a dense, hot, supermassive ball

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Bigbang

Front 5

Bigbang occured ____ years ago

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13.7 Billion

Front 6

Bigbang is based on what two assumptions?

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1.) Gravitational Interaction of All Matter

2.) Cosmological Principle

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Doppler Effect

Far: ______ wavelength

frequency ________

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Longer wavelength

Frequency decreased

Front 8

_____ Law: far galaxies are moving away from earth

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Hubble's Law

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_____ Telescope: 1 mirror, 1 lens

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Reflecting

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______ Telescope: 2 lenses

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Refracting

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Telescope that uses radio waves

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Radiator Telescope

Front 12

____ years ago, a violent explosion occured.

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13.7 Billion

Front 13

Bigbang is based on what two assumptions?

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1.) Gravitational Interaction of all Matter

2.) Cosmological Principle

Front 14

Evidence of Expanding Universe

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Red Shift

Front 15

Doppler Effect: Malayo = ____ wavelength, frequency ____

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long, decreased

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_____ Law: malayong galaxies = moving away from earth

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Hubble's

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1 mirror, 1 lens

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Reflecting Telescope

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Group of starts, dust and gases held together by gravity

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Galaxy

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System of galaxies containing several to to thousands of member galaxies

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Galaxy Cluster

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Type of galaxy that appears bluish

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Spiral

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Type of Galaxy that appears redish

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Elliptical

Front 22

Milky way is what type of galaxy?

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Spiral

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Example of Elliptical Galaxy

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ESO 325-GOO4

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Small & Big Magellanic Clouds are what type of galaxy?

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Irregular

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Spiral Galaxy: ____%

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30%

Front 26

Elliptical Galaxy: ____%

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60%

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Irregular Galaxy: ____%

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18%

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2 gases that make up the star

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Hydrogen and Helium

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_______ reactions in the core support the star against gravity and produce photons and heat

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Nuclear Fusion

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Red Giant ---> _____ ---> White Dwarf

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Planetary Nebula

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Start of star's life cycle

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Stellar Nebula

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Red Supergiant ---> ____ ---> Neutron Star or Black Hole

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Supernova

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slight shifting

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Parallax

Front 34

One light year = ____ kms

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9.5 Trillion

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Next nearest star

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Proxima Centauri

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Stellar Brightness

negative: ____

positive: ____

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Brighter

Dimmer

Front 37

Diagram with absolute magnitude and temperature of stars

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Hertsprung-Russell

Front 38

Sun: ____% of all matter in solar system

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85%

Front 39

Most accepted theory about solar system

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Nebular Thoery

Front 40

Person behind Big Bang Thoery

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Georg Gamow