A
"Equinox" means
equal night
How long is a rotation?
24 hours
How long is a revolution?
1 year
"Autumnal" means
Fall (season, or Autum)
Earth's axis is currently tilted about ________ degrees from its path around the Sun.
23.4
The Earth is closest to the Sun in
January
T/F: On the March Equinox, the South Pole Receives 0 hours of sunlight.
False. Equinoxes have 12 hours of daylight and 12 hours of night everywhere.
When would be the best time to visit Antarctica to get maximum sunlight?
December
"Vernal" means:
Spring (season)
How many hours of sunlight does the North Pole receive on the June Solstice?
24 hours
The northernmost latitude where the Sun is directly overhead on the June Solstice is the
Tropic of Cancer
How may hours of daylight does Norway receive on the Autumnal Equinox?
12 hours
The southernmost latitude where the Sun is directly overhead on the September Solstice is the
Tropic of Capricorn
Which planets do not experience seasons, and why?
Mercury, Venus, Jupiter. Their orbits have almost no axial tilt.
Why is the Summer Solstice not the hottest day in the hemisphere?
Seasonal lag is caused by all the water on Earth.
Slide 1, Picture A represents
An Equinox
Slide 1, Picture B represents
Northern Hemisphere Summer/Southern Hemisphere Winter
Slide 1, Picture C represents
An Equinox
Slide 1, Picture D represents
Northern Hemisphere Winter/Southern Hemisphere Summer
Why are seasons so extreme on Uranus?
Uranus orbits nearly on its side, so each pole gets 42 years of continuous sunlight, followed by 42 years of darkness.
"Arctic" means:
Bear (like the constellation Ursa Major)
Where would be the best place for humans to settle of Mercury, and why?
Very close to the poles. The equator is very hot and the poles are freezing. Close to the poles the temperature could be just right for humans.
When was the December Solstice before the Julian Calendar switched to the Gregorian calendar?
December 25
How long is a year (precisely) on Earth?
365.25 days (actually a tiny bit shorter)
Scientists have estimated the universe to be about how old?