ASTRO 7N - UNIT 3 PART 1 (quiz)
What is the general result of the p-p chain? - correct answer-4H -> He + energy + other
products
The corona of the Sun: - correct answer-is visible during a solar eclipse
In the convective zone of the Sun: - correct answer-columns of hot gas rise, cool, and
descend
What part of the Sun do we typically see? - correct answer-Photosphere
In nuclear fusion, energy is produced because... - correct answer-the mass of the reacting
chemicals is larger than that of the products
When using different points in the Earth's orbit as a baseline for a parallax experiment it is
best to do the observations: - correct answer-6 months apart
One star is four times farther away than another. The parallax angle of the more distant star
is: - correct answer-four times smaller than that of the nearer star
The parallax angle for the star Hadar is .010 arc seconds. How far away is Hadar? - correct
answer-100 parsecs
Put one of your thumbs at arm's length in front of your face. Now focus on something in the
background and look through one eye at a time. What do you notice about your thumb? -
correct answer-It appears to move more when it's closer.
Star A is 4 times as luminous as Star B. Star A is 2 times as far away as Star B. Which star
appears brighter and by how much? - correct answer-The stars appear the same brightness.
What is the general result of the p-p chain? - correct answer-4H -> He + energy + other
products
The corona of the Sun: - correct answer-is visible during a solar eclipse
In the convective zone of the Sun: - correct answer-columns of hot gas rise, cool, and
descend
What part of the Sun do we typically see? - correct answer-Photosphere
In nuclear fusion, energy is produced because... - correct answer-the mass of the reacting
chemicals is larger than that of the products
When using different points in the Earth's orbit as a baseline for a parallax experiment it is
best to do the observations: - correct answer-6 months apart
One star is four times farther away than another. The parallax angle of the more distant star
is: - correct answer-four times smaller than that of the nearer star
The parallax angle for the star Hadar is .010 arc seconds. How far away is Hadar? - correct
answer-100 parsecs
Put one of your thumbs at arm's length in front of your face. Now focus on something in the
background and look through one eye at a time. What do you notice about your thumb? -
correct answer-It appears to move more when it's closer.
Star A is 4 times as luminous as Star B. Star A is 2 times as far away as Star B. Which star
appears brighter and by how much? - correct answer-The stars appear the same brightness.
