The document contains a series of questions related to the brightness and distance of stars, focusing on how changes in distance affect apparent brightness. It asks about the effects of moving the sun and other stars further or closer in terms of their brightness. The questions involve calculations related to luminosity and distance in astronomical terms.

1. Flag question: Question
1
Question 1 1
pts
If the Sun were suddenly moved 5 times further away. How
many times fainter would it be?
Flag question: Question 2
Question 2 1
pts
If the distance to a star was suddenly cut in half, how many
times brighter would the star appear?
Flag question: Question 3
Question 3 1
pts
Two stars appear the same brightness in the sky, but Star A is
three times farther away than Star B. How many times more
energy is Star A giving off than Star B?

2. Flag question: Question 4
Question 4 1
pts
If the Sun was moved farther away and suddenly appeared 4
times fainter in the sky, how many times further away would it
be?
Flag question: Question 5
Question 5 1
pts
Two stars in the sky give off the same amount of total energy,
but Star A appears 121 times fainter in our night sky than Star
B. How many times farther away is Star A than Star B?