ISP 205 Exams Questions and Answers

Which of the stars in the H-R diagram is fusing hydrogen into helium in its core? A: Star 8 B: Star 2 C: Star 10 D: Star 12 Ans- C Which star in the H-R diagram does not have any fusion occurring in it at all? A: Star 8 B: Star 4 C: Star 12 D: Star 1 Ans- C Which of these stars ...

You learned about the general concept of parallax in Chapter 2, and the video offers a review of the basic ideas. To check your understanding of the concept, which of the following is a valid way of demonstrating parallax for yourself? a. Get a camera, and photograph a person who is running bac...

Cosmic Address, from small to large Ans- Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe The Universe is expanding means that... Ans- The average distance between galaxies is growing with time If stars existed but galaxies did not... Ans- We would not exist be...

Explain why we see objects at great distances as they were in the distant past Ans- -The universe is constantly expanding -an observer in any galaxy sees more distant galaxies moving away faster -Distances and speeds help determine the universe is expanding Summarize the major cosmic events that...

The Andromeda Galaxy is faintly visible to the naked eye in the constellation Andromeda. Suppose instead it were located in the same direction in space as the center of the Milky Way Galaxy (but still at its current distance). How would it appear to the eye in that case? a) It would be much b...

he Andromeda Galaxy is faintly visible to the naked eye in the constellation Andromeda. Suppose instead it were located in the same direction in space as the center of the Milky Way Galaxy (but still at its current distance). How would it appear to the eye in that case? a) It would be much br...

Describe the major patterns we find among objects orbiting the Sun. Ans- -Terrestrial planets: rocky planets -Jovian Planets: gaseous planets -Asteroid belt between Mars and Jupiter -Kuiper belt past Neptune full of ice balls and comets -Dwarf planets orbit past Neptune -All rotate countercloc...

Which two factors primarily determine the characteristics of a star? Ans- its mass and its stage of life Star A is identical to Star B, except that Star A is twice as far from us as Star B. Therefore... Ans- both stars have the same luminosity, but the apparent brightness of Star B is four ti...

Rank the following 4 items by how long it takes for light to reach us from these object, from shortest to longest. The Andromeda Galaxy the center of the Milky Way Pluto Sun. Ans- Sun, Pluto, center of the Milky Way, the Andromeda Galaxy. The current best estimate for the age of the univers...