PSU Astro Exam #1 with Verified Answers
1. Q: What causes
day and night?
2. Q: How does the
Sun appear to
move in the sky
in the course of a
day?
3. Q: What time of
day does the Sun
transit the merid-
ian?
4. Q: What happens
to the Earth in
one year?
5. Q: Why do we
have seasons?
6...
PSU Astro Exam #1 with Verified Answers
1. Q: What causes A: Rotation of the Earth on its axis.
day and night?
2. Q: How does the A: East to West because of Earth's rotation
Sun appear to
move in the sky
in the course of a
day?
3. Q: What time of A: noon
day does the Sun
transit the merid-
ian?
4. Q: What happens A: It orbits the Sun one time.
to the Earth in
one year?
5. Q: Why do we A: Tilt of the Earth's axis (not changing distance from Sun)
have seasons?
6. Q: How is the A: With the North pole toward the Sun
Earth's axis tilt-
ed when we have
summer in the
Northern hemi-
sphere?
7. Q: What season A: winter
is it in the South-
ern hemisphere
when it is sum-
mer in the North-
ern hemisphere?
8. Q: When does A: approximately Dec. 21 = nights longer than days
Winter begin?
9. Q: When does A: approximately March 21 = days and nights equal length
Spring begin?
, PSU Astro Exam #1 with Verified Answers
10. Q: When does A: approximately June 21 = days longer than nights
Summer begin?
11. Q: When does A: approximately Sept. 21 = days and nights equal length
Fall begin?
12. Q: What happens A: It moves once around the Earth.
to the moon in 1
month?
13. Q: What causes A: Sun is lighting different fractions of the part of the Moon
the phases of the that we see.
Moon?
14. Q: What is the or- A: New - First Quarter - Full - Third Quarter - New
der of the phases
of the Moon
15. Q: When is the A: Only at night.
full moon visi-
ble?
16. Q: When is the A: The new moon is visible during the day and sets at
new moon visi- sunset.
ble?
17. Q: How are the A: Sun - Moon - Earth
Sun, Earth, and
Moon positioned
when it is new
Moon?
18. Q: How are the A: Sun - Earth - Moon
Sun, Earth, and
Moon positioned
when it is full
Moon?
19. A: Moon blocking the Sun's light.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller learndirect. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
