Earth's Motions
Seasons
Equinoxes
Solstices
Angle of Insolation/Celestial Sphere
100
One period of rotation on Earth
What is 24 hours?
100
The primary reason for the seasons
What is Earth's tilt?
100
The date of the Fall Equinox in the NH
When is Sept 21st -23rd?
100
The date of Winter Solstice in the Southern Hemisphere
What is June 21st?
100
Altitude and direction of the Celestial Equator if the observer is at 37 degrees North
53 degrees South facing
200
Planetary winds deflect due to
What is the Coriolis Effect?
200
When the Northern hemisphere is tilted away from the sun, which season are we experiencing?
Winter
200
In what direction does the sun rise on the Fall Equinox?
Exactly on East (Due East)
200
The most daylight hours in Sydney, Australia occur on what date?
December 21st
200
The direction of the observer's shadow when the Sun is at Point A
What is Northeast?
300
What is the shape of the Earth's orbit?
Ellipse
300
How many degrees is the Earth tilted?
23.5
300
What degree latitude gets the most direct insolation on the Equinoxes?
0 degrees
300
The # of degrees of difference between the Sun's path in June and in December
47 degrees
300
How shadows change from noon to dusk
What is get longer?
400
The approximate # of degrees Earth moves in its orbit per day
What is 360 degree?
400
When the Northern Hemisphere is tilted towards the sun, what season is it in Sydney, Australia?
Winter
400
The number of daylight hours Rio de Janeiro receives on September 23rd
What is 12 hours?
400
In what direction does the sun set on the Winter Solstice in the Northern Hemisphere?
South of West
400
Polaris's altitude if the Sun is at the observer's zenith (at noon) on September 21st
0
500
How many "extra" days are there in a year?
.24 days
500
During what season are we furthest from the sun in our orbit?
Summer (July 3rd)
500
The kind of rays the Tropic of Cancer receives on March 21st
Oblique (indirect acceptable)
500
Name of the latitude sphere that receives direct sunlight on December 21st
What is the Tropic of Capricorn?
500
The date is June 21st. The altitude of Polaris for an observer is 90 degrees. How many hours of darkness is the observer receiving?
0