Chapter 30 Review

What is does the law of conservation of energy state

What information does a star’s spectrum offer about the star

A Hertzsprung-Russell (H-R) diagram shows the relationship between ____.

When a main-sequence star has exhausted the fuel in its core, it becomes a ____.

According to Figure 25-1, the sun (letter C) has an absolute magnitude of ____.

The measure of a star’s brightness is called its ____.

If star A is farther than star B, the same absolute magnitude, what is true apparent mag.?

Which of the following indicates that the universe is expanding?

Which of the following is change in wavelength that occurs when an object moves toward or away?

Stars of which color have the highest surface temperature?

Which magnitude would be associated with the brightest star

Using the Doppler effect, astronomers can determine a star’s ____.

Massive stars terminate in a brilliant explosion called a ____.

Which type of spectrum is this?

About 90 percent of stars on the H-R diagram are ____.

The Sun is a 

Light cannot escape the intense gravitational pull of a ____.

Which of the following is true about parallax?