Details

Title: AS102-Exam 1

Description: Butler University, Exam 1, Dr. Murphy

Total Flash Cards: 28

Created: 09/23/2009 18:27:51

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Additional Astronomy Flashcards

Cards in this set:

Term
Kilo
 Definition
103
Term
Mega
 Definition
106
Term
Giga
 Definition
109
Term
Tera
 Definition
1012
Term
Peta
 Definition
1015
Term
Milli
 Definition
10-3
Term
Micro
 Definition
10-6
Term
Nano
 Definition
10-9
Term
Pico
 Definition
10-12
Term

Astronomical Unit

-Definition

-Conversions (km, light minutes)

 

 Definition

The average distance from the Earth to the Sun

 

* 1.496x108 km

* 8 Light Minutes
Term

Order of Planets

(closest to furthest from the sun)

 Definition

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune
Term
Terrestrial Planets
 Definition
Mercury, Venus, Earth, Mars
Term

Solar System

(Center>Out)

 Definition

Sun

Terrestrial Planets

Asteroid Belt

Jovian Planets

Kuiper Belt

Oort Cloud
Term
 Definition
Term

Light Year

(Definition and Units)

 Definition

Distance that light can travel in one year

 

*Distance=VelocityxTime

 

*9.45x1012
Term
Speed of Light
 Definition

c= 3x108 m/sec

 

c= 3x105 km/sec
Term
Summer Solstice
 Definition

June 21

 

The northern hemisphere receives its most direct sunlight, the sun is highest in the sky.
Term
Winter Solstice
 Definition

December 21

 

When the sun is in its lowest point in the sky.  
Term
Spring Equinox
 Definition

March 21

 

The northern hemisphere goes from being tipped slightly away from the sun to being tipped slightly toward the sun.
Term
Fall Equinox
 Definition

September 22

 

Northern Hemisphere first starts to tip away from the sun
Term
 Definition
Term
Wavelength
 Definition
Distance between peaks
Term
Frequency
 Definition
# of times a wave moves up and down
Term
Photons
 Definition
Individual "pieces" of light
Term
Continuous spectrum
 Definition
Spans a broad range of wavelenths without interruption
Term
Emission Lines
 Definition
Emits light only at specific wavelengths that depend on its composition and temperature
Term
Absorption Line Spectrum
 Definition
?
Term
 Definition