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40 Cards in this Set
- Front
- Back
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In this model everything revolves around a stationary earth |
Geocentric |
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What is the name for the Sun centered model of the solar system |
Heliocentric |
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How do we explain night and day in a heliocentric model of the solar system?
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Earth rotates |
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What are the two pieces of evidence that prove that the Earth revolves around the Sun? |
Seasons change and constellation change |
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What are the two things that prove the Earth rotates? |
Focault's Pedulum and the Coriolis Effect |
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What Earth motion causes winds, ocean currents, rockets and anything else moving across Earth to be deflected or (curved) |
rotation |
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Which direction are winds and ocean currents deflected to in the Northern Hemisohere due to the corilis effect? |
Right |
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Foucault’s pendulum and Coriolis effect prove the earth ________________________
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Earth rotates on its axis |
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Changing seasons and constellations prove the Earth_________ |
Revolves around the sun
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Why do stars like the sun appear to move in the sky?
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Earth rotates on its axis |
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Stars like the Sun and all other celestial objects appear to move at a rate of ______ degrees per hour
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15
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Which is the only star that does not appear to move due to Eaerth's rotation? |
Polaris |
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All celestial objects like the Sun and moon appear to rise in the ____ and set in the _____ |
East West |
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The earth ________________ counterclockwise (in 24 hours) at a rate of _______degrees per hour |
rotates |
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The earth _____________ around the sun (in 365 1/4 days) at rate of ____degree per day. |
revolves |
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What does the term zenith mean?
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spot directly above your head at a 90 degree angle |
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Polaris is located directly above |
The Earth's axis of rotation |
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The Altitude of star is the measurement of its angle above the _________ |
horizon |
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You can only see Polaris in the _________hemisphere |
Northern
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you always have to look _________ to see polaris |
North |
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Polaris is the last star in the handle of the ________ ________ (constellation) |
Little Dipper |
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What direction are you |
north |
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The altitude of Polaris (north star) above the horizon is the same as the observer’s ________________ |
latitude
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As a person’s latitude increases, the altitude of Polaris ______________ |
increases
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Plot the apparent position for Polaris as seen from an observer at 41N |
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If you’re at 90°N, then Polaris is _______° above the horizon- If you are at the equator then Polaris is at ______° |
90 |
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the latitude of the North pole is_____ |
90N |
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The latitude of the Equator is |
0 |
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The longitude of the Primer meridian is |
0 |
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What direction are you looking? indicate which star is polaris. |
North |
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the altitude of Polaris is always the same as the observer's |
latitude
this person is at 52N |
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As a person's latitude increases, Polaris's angle.................. |
Increases |
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latitude lines measure distances__________ or ___________ of the equator |
north or south |
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Longiude lines measure disdtance ________and ______of the Prime Meridian |
East and west |
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Every 15 degrees of longitude equals a ___________ hour time difference |
1 |
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Two location 60 degrees apart will have a _______ time difference |
4 |
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As you travel west, what happens to your local time? |
Gets earlier |
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Altitude is the angle of a star above the _________ |
Horizon |
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The degrees measured from North along the horizon is called the |
Azimuth |
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What is the observer's latitude? |
42 since Polaris is at an angle of 42 |
