ASTR 121|104 FINAL EXAM Questions Well Solved|2024
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Course
ASTR 121
Institution
ASTR 121
Perihelion - ️️when the earth is closest to the Sun on its orbit
Leap year - ️️an extra day to help synchronize calendar with seasons
Math:
Is the year divisible by 4?
yes:
Is the year divisible by 100?
Yes: its a leap year
No: is it divisible by 400?
Yes: it is a leap year
...
ASTR 121|104 FINAL EXAM Questions
Well Solved|2024
Perihelion - ✔ ✔ when the earth is closest to the Sun on its orbit
Leap year - ✔ ✔ an extra day to help synchronize calendar with seasons
Math:
Is the year divisible by 4?
yes:
Is the year divisible by 100?
Yes: its a leap year
No: is it divisible by 400?
Yes: it is a leap year
Spring Tides - ✔ ✔ more extreme tides happen when new moon/full moon (Moon and Earth lineup)
Lunar eclipse - ✔ ✔ sun is eclipsed by the Earth, casting a shadow on the Moon
Earth completely blocks the Sun: Total Lunar Eclipse
Earth partially blocks Sun: Partial lunar eclipse
Solar eclipse - ✔ ✔ Sun eclipsed by the Moon, cast a shadow on Earth
Moon completely blocks Sun: Total solar eclipse
Moon partially blocks Sun: Partial solar eclipse
Four seasons - ✔ ✔ Summer Solstice (June 21)
Autumnal Equinox (September 21)
, Winter Solstice (December 21)
Vernal Equinox(March 21)
Foucault's Pendulum - ✔ ✔ When you swing a large pendulum, it will swing in a fixed plane
At a pole, plane of pendulum rotates every 24 hours
New Moon to Third quarter moon - ✔ ✔ about 22 days
Seasons - ✔ ✔ 1.Direct/Indirect sunlight
direct: more concentrate, effective heating
indirect: is less concentrated, less effective heating
2.Longer and shorter daylight hours
- more time above the horizon = more time heating that part of the Earth
- Summer: above horizon
- Spring and Fall: on the horizon
- Winter: below horizon
Tides - ✔ ✔ Since the water is squashed....we have two high and two low tides each day
Tides are primarily caused by the moon
BUT the sun pulls the Earth
Why does water squashes to form two bulges on either side of the Earth?
there is a lot of water and earth's in the way
What happens if the Sun and Moon are perpendicular?Less extreme neap tides
What happens if Sun and Moon line up?
extremely Large spring tides
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