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Random Facts
Things from stelar astronomy unit (random)
19
Physics
10th Grade
01/05/2007

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Cards

Term
estimated digit
Definition
-either 0 or 5
-found on end of all measurements
Term
acuracy
Definition
-how far your answers are from the right answer
-implies there is a spacific # that is official through science
Term
% error
Definition
-how far your answers are from the right answer
-implies there is a spacific # that is official through science
Term
precision
Definition
how far your answers are from eachother
Term
% difference
Definition
-how far your answers are from eachother
-used when there is no spacific given answer
Term
John Glen was the 1st...
Definition
...human to orbit the earth.
Term
Cartography is...
Definition
...the art and science of map-making.
Term
Astronomical Unit (AU)
Definition
-The mean distance between the earth and the sun.
-A unit of measure used for measuring long distances in space.
-1 AU = 1.496*10^8 km
Term
Aphelion
Definition
-When the earth is farthest from the sun.
-July 1
-152.6 million km.
Term
Perihelion
Definition
-When the earth is closest to the sun.
-January 1
-147.5 million km.
Term
How many hours of daylight are there at these places durring the summer and winter solstice?
-The Arctic Circle
-The Equator
-The Antarctic Circle
Definition
-Arctic Circle: 24 & 0
-Equator: 12 & 12
-Antarctic Circle: 0 & 24
Term
What date do the summer and winter solstices occur on?
Definition
Summer:June 21
Winter:December 21
Term
Where are the sun's rays vertical durring the summer and winter solstices?
Definition
Summer:Tropic of Cancer
Winter:Tropic of Capricorn
Term
Outer Gassey Planets...
Definition
...have higher mass
...have lower density
...have more satelites
...spin faster
...orbit slower
Term
Inner rockey planets...
Definition
...have lower mass
...have higher density
...have less satelites
...spin slower
...orbit faster
Term
What are mars's moons?
Definition
Phoboes and Demos
Term
What planets show evidence of plate techtonics?
Definition
Mars, Earth, Jupiter, Saturn, Uranus, Neptune, and Venus.
Term
Zenith
Definition
the point in the sky directly above you
Term
Eccentricity
Definition
= (distance b-tween 2 foci)/(length of major axis)
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