ASTRONOMY 1010 TEST 1 EXAM 2026
QUESTIONS AND ANSWERS GRADED A+
⩥ Order of Planets Answer: Mercury, Venus, Earth, Mars, Jupiter,
Saturn, Uranus, Neptune
⩥ Multiplying exponents with same base Answer: add the exponents
⩥ The speed of light Answer: Earth to moon: 1.3 seconds
Earth to Sun: 8.3 minutes
⩥ Light Year Answer: the distance light travels in one year
1 light year = 5.88 x 10^12
9.5 trillion km
⩥ hypothesis Answer: testable explanation of an observation
⩥ law Answer: a series of observations that can be used to make
predictions
⩥ theory Answer: well developed ideas, tied to physical laws, that make
predictions
, ⩥ principle Answer: ideas that guide the construction of new theories
⩥ Cosmological Principle Answer: All known physical laws apply at all
places and all times
⩥ Why does CO2 rise and fall Answer: Biosphere starts sucking up CO2
in the spring and releasing it in the fall
⩥ Astronomy Answer: patterns among the stars
⩥ Occam's Razor Answer: when given 2 hypotheses that explain
equally, use the one that requires the fewest assumptions
⩥ Scientific Method Answer: testing new ideas or explanations
⩥ Apparent Daily motion Answer: as seen from Earth's surface, the path
each object takes across the sky
⩥ Celestial Sphere Answer: imaginary sphere
⩥ Latitude (Declination) Answer: North/South, determines view of the
sky
QUESTIONS AND ANSWERS GRADED A+
⩥ Order of Planets Answer: Mercury, Venus, Earth, Mars, Jupiter,
Saturn, Uranus, Neptune
⩥ Multiplying exponents with same base Answer: add the exponents
⩥ The speed of light Answer: Earth to moon: 1.3 seconds
Earth to Sun: 8.3 minutes
⩥ Light Year Answer: the distance light travels in one year
1 light year = 5.88 x 10^12
9.5 trillion km
⩥ hypothesis Answer: testable explanation of an observation
⩥ law Answer: a series of observations that can be used to make
predictions
⩥ theory Answer: well developed ideas, tied to physical laws, that make
predictions
, ⩥ principle Answer: ideas that guide the construction of new theories
⩥ Cosmological Principle Answer: All known physical laws apply at all
places and all times
⩥ Why does CO2 rise and fall Answer: Biosphere starts sucking up CO2
in the spring and releasing it in the fall
⩥ Astronomy Answer: patterns among the stars
⩥ Occam's Razor Answer: when given 2 hypotheses that explain
equally, use the one that requires the fewest assumptions
⩥ Scientific Method Answer: testing new ideas or explanations
⩥ Apparent Daily motion Answer: as seen from Earth's surface, the path
each object takes across the sky
⩥ Celestial Sphere Answer: imaginary sphere
⩥ Latitude (Declination) Answer: North/South, determines view of the
sky
