NSCI 111 ASTRONOMY TEST #1 6/8/07 Dr. Holmes NAME

ANSWER ALL THE QUESTIONS. THE WORTH OF EACH QUESTION IS CIRCLED AFTER THE QUESTION.

1) The constellations of the zodiac: Fill in the name, declination, right ascension for each of the constellations of the zodiac and then fill in the month that it crosses the meridian at noon (when the sun is in that constellation) and the month that it crosses the meridian at 9 pm (nice viewing time).

 NAME Dec R.A. Month it crosses meridian at noon Month it crosses meridian at 9 pm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2) a) What is the approximate declination and right ascension of the Big Dipper?

b) Draw the Big Dipper and place the North Star on the diagram also.

3) a) What is the zenith?

b) What is the ecliptic?

c) What is a heliacal rising?

d) What is the winter solstice?

4) Tell me two bits of data (observations) about the planets:

1.

2.

5) Briefly discuss one of the ancient (non-Greek) civilization's ideas on astronomy.

6) Briefly discuss one of the major Greek's ideas on astronomy.

7) Briefly discuss one of the following's influence on or work in astronomy: Copernicus, Brahe, Kepler, Galileo or Newton. (use the back of the page if necessary)

8) Describe Newton's three laws of motion in words:

First Law:

Second Law:

Third Law:

9)  What are the steps in the Scientific Method?

10) TRUE OR FALSE: (for each: +1 if correct, 0 if you leave it blank, -1 if wrong)

(or based on subtracting from 100: -0 if correct, -1 if blank, -2 if wrong)

_F___a) All stars rise in the East and set in the West each day.

_T___b) You can see the North Star from anyplace in the Northern Hemisphere (that has an unobstructed view of the sky) on any clear night regardless of the month of the year or the time of night.

_F___c) The moon appears to move from East to West (westward) through the constellations of the zodiac, and it never moves eastward.

_F___d) The North Star is one of the 10 brightest stars in the night sky.

_T___e) On or around June 21, the sun appears to rise the farthest North of due East and to set the farthest North of due West.

_T___f) There are five planets visible to the naked eye (at one time or another):

_T___g) Since the sun moves relative to the stars, the stars appear to rise (and set) a couple of minutes earlier each day.

_F___h) Columbus argued that the earth was round and not flat. This was contrary to the generally accepted belief by the educated leaders that the earth was flat. This disagreement was the main reason why he had such a hard time getting his ships.

_F___i) At the time of Columbus, sailors (at least the navigators) could tell their position (both latitude and longitude) by looking at the stars.

_F___j) Copernicus and Galileo were contemporaries (they lived at the same time and knew of each other).