Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
38 Cards in this Set
- Front
- Back
|
where did aristarchus study?
|
alexandria
|
|
|
aristartcus calculated the distance between the moon___ and ___.
|
moon and the earth
|
|
|
name the 5 elements
|
eather, earth, air, fire, water
|
|
|
The earth is surrounded by_______.
|
water
|
|
|
What are the eight spheres?
|
moon, sun, stars, planets
|
|
|
Aristotle believed the seasons were caused by, what?
|
when the sun was higher or lower in the sky
|
|
|
what is a geocentric model
|
Aristotle's idea about the earth as the center of the universe
|
|
|
Who suggested a theory that the sun was the center of the universe?
|
Arsitarchus
|
|
|
The planets revolve around the ________.
|
sun
|
|
|
what is the heliocentric model?
|
the theory that the sun is the center of the universe
|
|
|
What did Aristarchus believe night and day were caused by?
|
the earth's rotation on its axis
|
|
|
Aristarchus believed the sun was ___ and _____ away than thought before.
|
farther away and larger
|
|
|
Who had similar ideas to Aristotle?
|
Ptolemy
|
|
|
Ptolemy belived the ______ moved around the earth
|
sun
|
|
|
Ptolemy belived the ______ moved around the earth
|
sun
|
|
|
what was hipparchus called?
|
the greatest astronomer of antiquilty
|
|
|
were did hipparchus build his observatory?
|
Rhodes
|
|
|
Anaxagoras said the moon had ____, ____, and _______.
|
revines, mountains, and valleys
|
|
|
What is astronomy?
|
the study of the planets, stars, adn everything in space
|
|
|
What is retrograde motion?
|
when a planet aparently goes foreward then backwards then forwards again
|
|
|
describe celestial
|
of or relating to the sky or the heavens
|
|
|
what is geocentric?
|
the earth being the center of the universe
|
|
|
what is heliocentric
|
when the sun is the center of the universe and the earth goes around the sun
|
|
|
describe astrolabe
|
an instrument that was used to to determine the altitude of the sun and other celestial objects
|
|
|
what is gnomon
|
an object like a sundial that projects a shadow.
|
|
|
what is rotation?
|
the act or process of turning around
|
|
|
describe revolution
|
spinning on it's axis
|
|
|
what is aparentmotion
|
when an object apears to be moving because another object is moving
|
|
|
Aristarchus said mars varies in ____ because sometimes it's closer to the earth.
|
brightness
|
|
|
say the lines on the planet in order from north to south.
|
artic circle, tropic of cancer, equator, tropic of capricorn, and antartic circle
|
|
|
how many days in one year
|
365
|
|
|
planets wander in and out of stars
|
true
|
|
|
the star patterns, or constellations, change shape from night to day
|
false
|
|
|
the moon is closer to the earth than the sun is
|
true
|
|
|
the only time you can see the moon is at night
|
false
|
|
|
we always see the same side of the ____.
|
moon
|
|
|
when is your shadow the shortest
|
the first day of summer at noon
|
|
|
each day the sun rises due east and sets due west
|
false
|
