ASTRONOMY 1010 STUDY GUIDE 2026
COMPLETE QUESTIONS AND SOLUTIONS
GRADED A+
⩥ size of a typical planet. Answer: Which of the following is the
smallest?
⩥ there are universal laws of physics that govern the universe.. Answer:
The Cosmological Principle can be summarized to say...
⩥ The observable universe is 14 billion light years in each direction so
the actual universe is greater than 14 billion light years across.. Answer:
Is the actual size of the universe larger than 14 billion light years?
⩥ Light travels at a constant speed.. Answer: Astronomers observe a
supernova explosion that is 100 lightyears away and they deduce that the
star exploded 100 years ago. What principle of light guides this
knowledge?
⩥ 8. Answer: Approximately how many minutes does it take light to
travel from the Sun to the Earth?
⩥ the sun. Answer: The star that provides energy for life on Earth is...
, ⩥ the number of protons in its nucleus.. Answer: For scientists, an
element (like gold) is defined by
⩥ the universe. Answer: Which of these is the largest?
⩥ the idea that scientists should prefer the simpler of two models that
agree equally well with observations. Answer: What is meant by
Occam's Razor?
⩥ 100 billion. Answer: Roughly how many stars are in the Milky Way
Galaxy?
⩥ the distance that light travels in one year.. Answer: a light year is...
⩥ make an observation. Answer: Which step of the scientific method
must occur first?
⩥ the average distance between the Earth and the Sun.. Answer: The
Astronomical Unit (AU) as defined by astronomers is
⩥ are further investigated and questioned by other scientists. Answer:
Using the scientific method, scientists develop new theories that...
COMPLETE QUESTIONS AND SOLUTIONS
GRADED A+
⩥ size of a typical planet. Answer: Which of the following is the
smallest?
⩥ there are universal laws of physics that govern the universe.. Answer:
The Cosmological Principle can be summarized to say...
⩥ The observable universe is 14 billion light years in each direction so
the actual universe is greater than 14 billion light years across.. Answer:
Is the actual size of the universe larger than 14 billion light years?
⩥ Light travels at a constant speed.. Answer: Astronomers observe a
supernova explosion that is 100 lightyears away and they deduce that the
star exploded 100 years ago. What principle of light guides this
knowledge?
⩥ 8. Answer: Approximately how many minutes does it take light to
travel from the Sun to the Earth?
⩥ the sun. Answer: The star that provides energy for life on Earth is...
, ⩥ the number of protons in its nucleus.. Answer: For scientists, an
element (like gold) is defined by
⩥ the universe. Answer: Which of these is the largest?
⩥ the idea that scientists should prefer the simpler of two models that
agree equally well with observations. Answer: What is meant by
Occam's Razor?
⩥ 100 billion. Answer: Roughly how many stars are in the Milky Way
Galaxy?
⩥ the distance that light travels in one year.. Answer: a light year is...
⩥ make an observation. Answer: Which step of the scientific method
must occur first?
⩥ the average distance between the Earth and the Sun.. Answer: The
Astronomical Unit (AU) as defined by astronomers is
⩥ are further investigated and questioned by other scientists. Answer:
Using the scientific method, scientists develop new theories that...
