What do the orbits of Populations I and II stars tell us about the formation of the Milky Way?
What will be an ideal response?
Question 2The ________ explains why the spectral lines from a rapidly rotating star are broader than those from a slowly rotating star.
Fill in the blank(s) with correct word
Question 3Pluto is most similar to:
A) Europa.
B) Miranda.
C) Triton.
D) our Moon.
E) Mercury.
Question 4What is thought to be the reason that there are no small impact craters on Mars?
A) Like Venus, Mars' atmosphere is too thick and these meteorites do not survive to make impacts on the surface.
B) The surface of Mars is too young to have impact craters.
C) Due to the gravitational pull of Mars' moons, most small meteoroids are deflected and never make it to the surface.
D) The wind blows small dust particles, eroding the surface of Mars, erasing small impact craters faster than they can form.
E) None of the above. Mars has lots of small impact craters.
Question 5Falling stars and shooting stars are simply other names for meteors.
Indicate whether the statement is true or false
Question 6It took two centuries for the Copernican model to replaced the Ptolemaic model because
A) in Copernicus' time, there were no telescopes.
B) the Church wouldn't let anyone talk about Copernicus' model for 200 years.
C) there was no scientific evidence to support either model until Galileo made his observations.
D) the Ptolemaic model was simpler and more aesthetically pleasing.
E) the Copernican model required complicated new terms to explain it correctly.
Question 7Arcturus shows a large proper motion, almost perpendicular to the galactic plane. What Population does it belong to, and why?
What will be an ideal response?
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