Question

6 multiple choice 3 points which of the following are not labels for the axes of the hr diagram? luminosity temperature absolute magnitude mass 7 multiple choice 2 points which statement correctly describes a relationship between the distance from earth and a characteristic of a star? as the distance from earth to the star decreases, its size increases. as the distance from earth to the star increases, its size decreases. as the distance from earth to the star decreases, its apparent brightness increases. as the distance from earth to the star increases, its apparent brightness increases.

Explanation:

• Question 6: The Hertzsprung - Russell (HR) diagram has axes labeled with luminosity (or absolute magnitude) and temperature. Mass is not an axis label for the HR diagram.
• Question 7: The apparent brightness of a star follows the inverse - square law. If the distance \(d\) from Earth to a star decreases, the apparent brightness \(b=\frac{L}{4\pi d^{2}}\) (where \(L\) is the luminosity of the star) increases. The size of a star is not directly related to its distance from Earth in a simple, direct - proportional or inverse - proportional way based on distance alone.

Answer:

• Question 6: Mass
• Question 7: As the distance from Earth to the star decreases, its apparent brightness increases.