Question 1

A(n) ____ is a small circle whose center is located on the circumference of another larger circle.

Accepted Answer

A)  equant 
B)  deferent 
C)  retrograde loop 
D)  ellipse 
E)  epicycle 
A)  equant 
B)  deferent 
C)  retrograde loop 
D)  ellipse 
E)  epicycle

Question 2

In Ptolemy's view of the universe, a planet moves on an epicycle whose center moves around the Earth on the deferent circle.

Accepted Answer

A)  Correct 
B)  FALSE; Ptolemy put the sun at the center. 
C)  FALSE; The planet stays on the deferent circle. 
D)  FALSE; Earth is at the center of the epicycle. 
E)  FALSE; Both c and d are correct. 
A)  Correct 
B)  FALSE; Ptolemy put the sun at the center. 
C)  FALSE; The planet stays on the deferent circle. 
D)  FALSE; Earth is at the center of the epicycle. 
E)  FALSE; Both c and d are correct.

Question 3

The Ptolemaic model of the universe was heliocentric.

Accepted Answer

A) True 
 B)False

Question 4

The force due to gravity has the mathematical form   .

Accepted Answer

A) True 
 B)False

Question 5

The circular velocity of a satellite orbiting Earth is given by   . In this equation,

Accepted Answer

A)  M represents the mass of the satellite, and r is its radius. 
B)  M represents the mass of Earth, and r the radius of Earth. 
C)  M represents the mass of the satellite, and r the distance from Earth to the satellite. 
D)  M represents the mass of Earth, and r the distance from Earth to the satellite. 
E)  M represents the mass of the satellite, and r the distance from Earth's surface to the satellite. 
A)  M represents the mass of the satellite, and r is its radius. 
B)  M represents the mass of Earth, and r the radius of Earth. 
C)  M represents the mass of the satellite, and r the distance from Earth to the satellite. 
D)  M represents the mass of Earth, and r the distance from Earth to the satellite. 
E)  M represents the mass of the satellite, and r the distance from Earth's surface to the satellite.

Question 6

Copernicus proposed that Earth moved around the sun.

Accepted Answer

A) True 
 B)False

Question 7

The ____ produce(s) tides on the Earth.

Accepted Answer

A)  moon alone 
B)  sun alone 
C)  moon and sun 
A)  moon alone 
B)  sun alone 
C)  moon and sun

Question 8

The period of Jupiter's orbit around the sun is approximately 12 years. What is the approximate distance from the sun to Jupiter?

Accepted Answer

A)  144 AU 
B)  1728 AU 
C)  42 AU 
D)  5.2 AU 
E)  2.3 AU 
A)  144 AU 
B)  1728 AU 
C)  42 AU 
D)  5.2 AU 
E)  2.3 AU

Question 9

Classical Greek astronomers believed the motions of the heavens could be described by uniform circular motion.

Accepted Answer

A) True 
 B)False

Question 10

Newton's law of gravitational force is expressed as follows:

Accepted Answer

A)  An object with no force on it moves in a straight line with constant velocity. 
B)  An object with a force on it is accelerated in the direction of the force an amount inversely proportional to its mass and directly proportional to the size of the force. 
C)  For every action there is an equal and opposite reaction. 
D)  The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them squared. 
A)  An object with no force on it moves in a straight line with constant velocity. 
B)  An object with a force on it is accelerated in the direction of the force an amount inversely proportional to its mass and directly proportional to the size of the force. 
C)  For every action there is an equal and opposite reaction. 
D)  The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them squared.

Question 11

How did the geocentric model and the heliocentric model of the universe explain retrograde motion?

Accepted Answer

The answer of How did the geocentric model and the...

Question 12

An apparent westward motion of a planet in the sky compared to the background stars (as viewed from Earth) when observed on successive nights is referred to as

Accepted Answer

A)  epicycle. 
B)  retrograde motion. 
C)  prograde motion. 
D)  heliocentric motion. 
E)  deferent. 
A)  epicycle. 
B)  retrograde motion. 
C)  prograde motion. 
D)  heliocentric motion. 
E)  deferent.

Question 13

Direct motion of a planet is its normal motion ____________ among the stars.

Accepted Answer

A)  west to east along the ecliptic 
B)  east to west along the ecliptic 
C)  west to east along the celestial equator 
D)  east to west along the celestial equator 
A)  west to east along the ecliptic 
B)  east to west along the ecliptic 
C)  west to east along the celestial equator 
D)  east to west along the celestial equator

Question 14

Tables based on a heliocentric model of the universe which used elliptical orbits for the planets were more accurate than ____________________.

Accepted Answer

geocentric

Question 15

The lunar tides on Earth are making the moon recede from Earth.

Accepted Answer

A) True 
 B)False

Question 16

Tycho failed to detect ______ for the nova of 1572 indicating it was ______.

Accepted Answer

A)  parallax; beyond the orbit of Earth's moon 
B)  parallax; inside the Earth's atmosphere close to Earth 
C)  light; beyond the orbit of Earth's moon 
D)  light; inside the Earth's atmosphere close to Earth 
A)  parallax; beyond the orbit of Earth's moon 
B)  parallax; inside the Earth's atmosphere close to Earth 
C)  light; beyond the orbit of Earth's moon 
D)  light; inside the Earth's atmosphere close to Earth

Question 17

Kepler completed the Rudolphine Tables.

Accepted Answer

A) True 
 B)False

Question 18

A(n) ____ is a commonly accepted set of scientific ideas and assumptions.

Accepted Answer

A)  theory 
B)  paradigm 
C)  hypothesis 
D)  natural law 
E)  model 
A)  theory 
B)  paradigm 
C)  hypothesis 
D)  natural law 
E)  model

Question 19

Explain why the spring and neap tides occur periodically.

Accepted Answer

The answer of Explain why the spring and neap tides...

Question 20

A(n) ____ orbit is one where the orbiting object is always above the same location on Earth's surface.

Accepted Answer

A)  elliptical 
B)  geosynchronous 
C)  closed 
D)  hyperbolic 
E)  parabolic 
A)  elliptical 
B)  geosynchronous 
C)  closed 
D)  hyperbolic 
E)  parabolic

A(n) ____ is a small circle whose center is located on the circumference of another larger circle.

In Ptolemy's view of the universe, a planet moves on an epicycle whose center moves around the Earth on the deferent circle.

The Ptolemaic model of the universe was heliocentric.

The force due to gravity has the mathematical form .

The circular velocity of a satellite orbiting Earth is given by . In this equation,

Copernicus proposed that Earth moved around the sun.

The ____ produce(s) tides on the Earth.

The period of Jupiter's orbit around the sun is approximately 12 years. What is the approximate distance from the sun to Jupiter?

Classical Greek astronomers believed the motions of the heavens could be described by uniform circular motion.

Newton's law of gravitational force is expressed as follows:

How did the geocentric model and the heliocentric model of the universe explain retrograde motion?

An apparent westward motion of a planet in the sky compared to the background stars (as viewed from Earth) when observed on successive nights is referred to as

Direct motion of a planet is its normal motion ____________ among the stars.

Tables based on a heliocentric model of the universe which used elliptical orbits for the planets were more accurate than ____________________.

The lunar tides on Earth are making the moon recede from Earth.

Tycho failed to detect for the nova of 1572 indicating it was .

Kepler completed the Rudolphine Tables.

A(n) ____ is a commonly accepted set of scientific ideas and assumptions.

Explain why the spring and neap tides occur periodically.

A(n) ____ orbit is one where the orbiting object is always above the same location on Earth's surface.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 4: The Origin of Modern Astronomy

A(n) ____ is a small circle whose center is located on the circumference of another larger circle.

In Ptolemy's view of the universe, a planet moves on an epicycle whose center moves around the Earth on the deferent circle.

The Ptolemaic model of the universe was heliocentric.

The force due to gravity has the mathematical form .

The circular velocity of a satellite orbiting Earth is given by . In this equation,

Copernicus proposed that Earth moved around the sun.

The ____ produce(s) tides on the Earth.

The period of Jupiter's orbit around the sun is approximately 12 years. What is the approximate distance from the sun to Jupiter?

Classical Greek astronomers believed the motions of the heavens could be described by uniform circular motion.

Newton's law of gravitational force is expressed as follows:

How did the geocentric model and the heliocentric model of the universe explain retrograde motion?

An apparent westward motion of a planet in the sky compared to the background stars (as viewed from Earth) when observed on successive nights is referred to as

Direct motion of a planet is its normal motion ____________ among the stars.

Tables based on a heliocentric model of the universe which used elliptical orbits for the planets were more accurate than ____________________.

The lunar tides on Earth are making the moon recede from Earth.

Tycho failed to detect ______ for the nova of 1572 indicating it was ______.

Kepler completed the Rudolphine Tables.

A(n) ____ is a commonly accepted set of scientific ideas and assumptions.

Explain why the spring and neap tides occur periodically.

A(n) ____ orbit is one where the orbiting object is always above the same location on Earth's surface.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Tycho failed to detect for the nova of 1572 indicating it was .