Question 1

At the beginning of spring,the vernal equinox,what is the right ascension of the sun?

Accepted Answer

A) 0 
B) 12 hr 
C) 18 hr 
D) 90 degrees 
A) 0 
B) 12 hr 
C) 18 hr 
D) 90 degrees A

Question 2

The ecliptic and zodiac are different names for the same thing

Accepted Answer

A) True 
 B)False  True

Question 3

Kepler's third law states that the planet's orbital period squared is equal to its mean solar distance cubed.Consequently,the solar distances of the planets can be calculated when their periods of revolution are known.The orbital period of Jupiter is 12 years,what is its distance from the sun in astronomical units?

Accepted Answer

A) 12 
B) 5)2 
C) 530 
D) 16.1 
A) 12 
B) 5)2 
C) 530 
D) 16.1 B

Question 4

The length of daylight on the Moon is about ________.

Accepted Answer

A) 24 hours 
B) 48 hours 
C) two weeks 
D) one month 
E) one year 
A) 24 hours 
B) 48 hours 
C) two weeks 
D) one month 
E) one year

Question 5

Who wrote the book entitled Of the Revolutions of Celestial Spheres (De Revolutionibus)?

Accepted Answer

A) Sir Isaac Newton 
B) Galileo 
C) Tycho Brahe 
D) Nicolaus Copernicus 
E) Johannes Kepler 
A) Sir Isaac Newton 
B) Galileo 
C) Tycho Brahe 
D) Nicolaus Copernicus 
E) Johannes Kepler

Question 6

An eclipse of the Moon can be seen by anyone on the side of Earth facing the Moon.

Accepted Answer

A) True 
 B)False

Question 7

Earth is closest to the Sun in January.

Accepted Answer

A) True 
 B)False

Question 8

The ancient Greeks proposed an Earth-centered view of the universe.

Accepted Answer

A) True 
 B)False

Question 9

The apparent annual path of the Sun upon the celestial sphere is called the ecliptic.

Accepted Answer

A) True 
 B)False

Question 10

Where will the North Star be,relative to the celestial coordinates,12,000 years from now?

Accepted Answer

A) Right where it is now; it isn't going anywhere. 
B) Several degrees from the North Pole position,with Vega as the North Star. 
C) 23 1/2 degrees away from the pole,due to precession. 
D) None of these is correct. 
A) Right where it is now; it isn't going anywhere. 
B) Several degrees from the North Pole position,with Vega as the North Star. 
C) 23 1/2 degrees away from the pole,due to precession. 
D) None of these is correct.

Question 11

What is the right ascension and declination for Polaris,the North Star?

Accepted Answer

A) RA 0 hr,D 0 degrees 
B) RA 0 hr,D 80 degrees 
C) RA indeterminate,D 90 degrees 
D) RA 90 hr,D -90 degrees 
A) RA 0 hr,D 0 degrees 
B) RA 0 hr,D 80 degrees 
C) RA indeterminate,D 90 degrees 
D) RA 90 hr,D -90 degrees

Question 12

In the Ptolemaic (Greek)model of the universe,the stars are attached to the ________.

Accepted Answer

A) celestial sphere 
B) zodiac 
C) plane of the ecliptic 
D) deferent 
E) stadia 
A) celestial sphere 
B) zodiac 
C) plane of the ecliptic 
D) deferent 
E) stadia

Question 13

The proposal that contends that Earth is in the center of the universe is called the ________ view.

Accepted Answer

The answer of The proposal that contends that Earth is...

Question 14

One of the discoveries which led to the modern view of the solar system was that the orbits of the planets are ________.

Accepted Answer

A) circles 
B) ellipses 
C) hyperbolas 
D) parabolas 
A) circles 
B) ellipses 
C) hyperbolas 
D) parabolas

Question 15

Why did Galileo's observation that Venus showed phases like the moon indicate that the geocentric theory of the solar system was not possible?

Accepted Answer

A) It demonstrated that Venus orbited earth like the moon,but both had to orbit the sun. 
B) It demonstrated that Venus could not be in orbit around earth between earth and the sun because it shows "full" and "new" phases that would never occur with geocentric geometry. 
C) It showed that Venus had to have a highly elliptical orbit that nearly crosses earth's to produce phases like the moon. 
D) It was not an important observation supporting heliocentric theory,but it did work out to be consistent with the theory. 
A) It demonstrated that Venus orbited earth like the moon,but both had to orbit the sun. 
B) It demonstrated that Venus could not be in orbit around earth between earth and the sun because it shows "full" and "new" phases that would never occur with geocentric geometry. 
C) It showed that Venus had to have a highly elliptical orbit that nearly crosses earth's to produce phases like the moon. 
D) It was not an important observation supporting heliocentric theory,but it did work out to be consistent with the theory.

Question 16

The planets stay in orbit around the Sun because of a balance between ________ and ________.

Accepted Answer

The answer of The planets stay in orbit around the...

Question 17

When the Sun crosses the celestial equator,and day and night are of equal length around the globe,it is the time of the ________.

Accepted Answer

equinox (c

Question 18

What is the modern explanation for what the ancient Chinese called "guest stars"?

Accepted Answer

A) They are comets. 
B) They are planets. 
C) They are Nova or Supernova. 
D) They are meteorites. 
E) None of the above. 
A) They are comets. 
B) They are planets. 
C) They are Nova or Supernova. 
D) They are meteorites. 
E) None of the above.

Question 19

The apparent westward drift of the planets as compared to the background stars is called ________ motion.

Accepted Answer

The answer of The apparent westward drift of the planets...

Question 20

The angular distance north and south of the celestial equator is called right ascension.

Accepted Answer

A) True 
 B)False

Exam 21: Origin of Modern Astronomy

At the beginning of spring,the vernal equinox,what is the right ascension of the sun?

The ecliptic and zodiac are different names for the same thing

The length of daylight on the Moon is about ________.

Who wrote the book entitled Of the Revolutions of Celestial Spheres (De Revolutionibus)?

An eclipse of the Moon can be seen by anyone on the side of Earth facing the Moon.

Earth is closest to the Sun in January.

The ancient Greeks proposed an Earth-centered view of the universe.

The apparent annual path of the Sun upon the celestial sphere is called the ecliptic.

Where will the North Star be,relative to the celestial coordinates,12,000 years from now?

What is the right ascension and declination for Polaris,the North Star?

In the Ptolemaic (Greek)model of the universe,the stars are attached to the ________.

The proposal that contends that Earth is in the center of the universe is called the ________ view.

One of the discoveries which led to the modern view of the solar system was that the orbits of the planets are ________.

Why did Galileo's observation that Venus showed phases like the moon indicate that the geocentric theory of the solar system was not possible?

The planets stay in orbit around the Sun because of a balance between ________ and ________.

When the Sun crosses the celestial equator,and day and night are of equal length around the globe,it is the time of the ________.

What is the modern explanation for what the ancient Chinese called "guest stars"?

The apparent westward drift of the planets as compared to the background stars is called ________ motion.

The angular distance north and south of the celestial equator is called right ascension.

Introduction to Earth Science

Matter and Minerals

Rocks: Materials of the Solid Earth

Weathering, soil, and Mass Wasting

Running Water and Groundwater

Glaciers, deserts, and Wind

Plate Tectonics: a Scientific Revolution Unfolds

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

Crustal Deformation and Mountain Building

Geologic Time

Earths Evolution Through Geologic Time

The Ocean Floor

Ocean Water and Ocean Life

The Dynamic Ocean

The Atmosphere: Composition,structure,and Temperature

Moisture, clouds, and Precipitation

Air Pressure and Wind

Weather Patterns and Severe Weather

World Climates and Global Climate Change

Touring Our Solar System

Light,astronomical Observations,and the Sun

Beyond Our Solar System

Filters

The planets stay in orbit around the Sun because of a balance between and .