Astronomy 101 - Final Exam || || || || ||
Review Questions With Answers || || || ||
Explain the physical reason why we on Earth experience
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day and night. - CORRECT ANSWER(S)✔✔Earth rotates
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about an axis of rotation once every 24 hours.
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What is a light year? - CORRECT ANSWER(S)✔✔The
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distance light travels in one year. || || || || ||
Approximately how far is the Sun from Earth? - CORRECT || || || || || || || || || ||
ANSWER(S)✔✔1 AU, 150 million km, 93 million miles, 8 || || || || || || || || ||
light minutes
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About how far is the closest star to the Sun? - CORRECT
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ANSWER(S)✔✔4 light years || ||
Explain why Earth has seasons. - CORRECT
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ANSWER(S)✔✔Earth's axis is tilted with respect to the || || || || || || || ||
orbital plane. When the northern hemisphere is tilted
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toward the Sun it is summer, even though we are further
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from the Sun.
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, Objects in the sky rise in the east and set in the west
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because Earth rotates from ___ to ___ about its axis. -
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CORRECT ANSWER(S)✔✔West to East || || ||
What two main factors dictate how bright a star is as seen
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from Earth? - CORRECT ANSWER(S)✔✔How intrinsically
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bright it is and how far away it is.
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What are commonly recognized star patterns known as? -
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CORRECT ANSWER(S)✔✔Constellations ||
What is significant about the Zodiac in the sky? -
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CORRECT ANSWER(S)✔✔They lie along the plane of the || || || || || || || ||
ecliptic (the plane of the solar system)
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Explain why stars appear at the same locations on the
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celestial sphere while the Sun, Moon, and planets move
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during the course of the year. - CORRECT
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ANSWER(S)✔✔The stars are so incredibly far away that || || || || || || || ||
even though they are moving, the motion is hardly
|| || || || || || || || ||
recognizable from Earth . || || ||
List the 7 major types of electromagnetic radiation (light)
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from highest to lowest energy. - CORRECT
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ANSWER(S)✔✔Gamma, x-ray, ultra violet, visible, infra || || || || || ||
red, microwave, radiowave
|| ||
Review Questions With Answers || || || ||
Explain the physical reason why we on Earth experience
|| || || || || || || || ||
day and night. - CORRECT ANSWER(S)✔✔Earth rotates
|| || || || || || ||
about an axis of rotation once every 24 hours.
|| || || || || || || ||
What is a light year? - CORRECT ANSWER(S)✔✔The
|| || || || || || || ||
distance light travels in one year. || || || || ||
Approximately how far is the Sun from Earth? - CORRECT || || || || || || || || || ||
ANSWER(S)✔✔1 AU, 150 million km, 93 million miles, 8 || || || || || || || || ||
light minutes
||
About how far is the closest star to the Sun? - CORRECT
|| || || || || || || || || || || ||
ANSWER(S)✔✔4 light years || ||
Explain why Earth has seasons. - CORRECT
|| || || || || || ||
ANSWER(S)✔✔Earth's axis is tilted with respect to the || || || || || || || ||
orbital plane. When the northern hemisphere is tilted
|| || || || || || || ||
toward the Sun it is summer, even though we are further
|| || || || || || || || || || ||
from the Sun.
|| ||
, Objects in the sky rise in the east and set in the west
|| || || || || || || || || || || || ||
because Earth rotates from ___ to ___ about its axis. -
|| || || || || || || || || || ||
CORRECT ANSWER(S)✔✔West to East || || ||
What two main factors dictate how bright a star is as seen
|| || || || || || || || || || ||
from Earth? - CORRECT ANSWER(S)✔✔How intrinsically
|| || || || || || ||
bright it is and how far away it is.
|| || || || || || || ||
What are commonly recognized star patterns known as? -
|| || || || || || || || ||
CORRECT ANSWER(S)✔✔Constellations ||
What is significant about the Zodiac in the sky? -
|| || || || || || || || || ||
CORRECT ANSWER(S)✔✔They lie along the plane of the || || || || || || || ||
ecliptic (the plane of the solar system)
|| || || || || ||
Explain why stars appear at the same locations on the
|| || || || || || || || || ||
celestial sphere while the Sun, Moon, and planets move
|| || || || || || || || ||
during the course of the year. - CORRECT
|| || || || || || || ||
ANSWER(S)✔✔The stars are so incredibly far away that || || || || || || || ||
even though they are moving, the motion is hardly
|| || || || || || || || ||
recognizable from Earth . || || ||
List the 7 major types of electromagnetic radiation (light)
|| || || || || || || || ||
from highest to lowest energy. - CORRECT
|| || || || || || ||
ANSWER(S)✔✔Gamma, x-ray, ultra violet, visible, infra || || || || || ||
red, microwave, radiowave
|| ||
