ACTUAL Exam Questions and CORRECT
Answers
Open Universe - CORRECT ANSWER - Universe with no boundaries or limits.
Closed Universe - CORRECT ANSWER - Universe with boundaries or limits.
Astronomical Unit - CORRECT ANSWER - Average distance to the sun.
93 million miles.
Light Year - CORRECT ANSWER - Distance light travels in a year. 6 trillion mile
distance in the space of a year.
How fast does light travel? - CORRECT ANSWER - 186,282 mi/sec.
Parsec - CORRECT ANSWER - 3.26 light years or 19 trillion miles.
Weight - CORRECT ANSWER - Defined as how hard gravity pulls on an object.
Astronomical Mass - CORRECT ANSWER - Special unit to measure space, equal to the
mass of the Earth.
6 x 10^24 = mass in kilos.
On Earth what does 1 kilogram weigh? - CORRECT ANSWER - 1 kilogram= 2.2 lbs.
, Why does Astronomy need its own unit of measurement? - CORRECT ANSWER -
Because the universe exists on such a large scale.
What are the three components that make up the universe? - CORRECT ANSWER -
Space: Separates objects.
Time: Separates events.
Matter: Occupies space.
As a star is moved farther from Earth, its yearly shift against the background stars increases. -
CORRECT ANSWER - False
The Earth is closest to the sun when? - CORRECT ANSWER - In January.
The moon has about 1/5 the gravity of the Earth. On the moon objects would... - CORRECT
ANSWER - Weigh less than on the Earth and have the same mass as on the Earth.
Geocentric Theory - CORRECT ANSWER - The theory that Earth was located at the
center of the universe.
Retrograde Motion - CORRECT ANSWER - Retrograde motion occurs when a planet
reverses its normal eastward motion in the sky and appears to travel backwards.
Epicycle - CORRECT ANSWER - Small circles/loops that the planets move in.
Deferent - CORRECT ANSWER - Large circles in epicycles.
Approximately when was Stonehenge built? - CORRECT ANSWER - 2500 B.C.