Question 1

The Copernican model of the solar system has the planets orbit the Sun along elliptical paths.

Accepted Answer

A) True 
 B)False

Question 2

When two objects of unequal masses orbit each other, the center of mass is

Accepted Answer

A) at the center of the more massive object. 
B) at the center of the least massive object. 
C) half way between the centers of each object. 
D) always closer to the less massive of the two objects. 
E) always closer to the more massive of the two objects. 
A) at the center of the more massive object. 
B) at the center of the least massive object. 
C) half way between the centers of each object. 
D) always closer to the less massive of the two objects. 
E) always closer to the more massive of the two objects.

Question 3

Which law refers to a planet sweeping out equal areas in equal times as it orbits its host star

Accepted Answer

A) Kepler's first 
B) Kepler's second 
C) Kepler's third 
D) universal law of gravitation 
A) Kepler's first 
B) Kepler's second 
C) Kepler's third 
D) universal law of gravitation

Question 4

The purpose of using epicycles and deferents to explain the motion of the planets in the night sky was to account for

Accepted Answer

A) prograde motion. 
B) Mercury's and Venus's limited angular distance from the Sun. 
C) retrograde motion. 
D) non-uniform speed of the planets in their orbits. 
E) precession of the equinoxes. 
A) prograde motion. 
B) Mercury's and Venus's limited angular distance from the Sun. 
C) retrograde motion. 
D) non-uniform speed of the planets in their orbits. 
E) precession of the equinoxes.

Question 5

Kepler used Tycho's observations to show that the planets

Accepted Answer

A) followed perfectly circular orbits. 
B) followed perfectly cubical orbits. 
C) all circled the Earth. 
D) followed elliptical orbits. 
A) followed perfectly circular orbits. 
B) followed perfectly cubical orbits. 
C) all circled the Earth. 
D) followed elliptical orbits.

Question 6

You and your friend put the palms of your hands together and push equally on each other so your hands don't move. Which law(s) does this follow Choose the best answer.
I. Newton's first 
II. Newton's second
III) Newton's third
IV) Newton's law of gravitation

Accepted Answer

A) I, III 
B) II, IV 
C) I, II, III, IV 
D) III 
A) I, III 
B) II, IV 
C) I, II, III, IV 
D) III

Question 7

The force due to gravity has the mathematical form .

Accepted Answer

A) True 
 B)False

Question 8

Using the definitions for neap and spring tides, explain when is the best time to go surfing in one 24-hour day on Earth.

Accepted Answer

Spring tides are the

Question 9

According to Kepler's third law, a planet's orbital period ____________________ is equal to its average distance from the Sun ____________________.

Accepted Answer

The answer of According to Kepler's third law, a planet's...

Question 10

____________________ is a description of the Ptolemaic model of the solar system.

Accepted Answer

The answer of ____________________ is a description of the Ptolemaic...

Question 11

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center   G = $6.67 × 10^{−11}$ m3⋅kg−1⋅s−2; MEarth = $5.98 × 10^{24}$ kg

Accepted Answer

A) 2 m/s 
B) 20 m/s 
C) 200 m/s 
D) 2000 m/s 
E) 20,000 m/s 
A) 2 m/s 
B) 20 m/s 
C) 200 m/s 
D) 2000 m/s 
E) 20,000 m/s

Question 12

A(n) ____ is a single conjecture that can be tested.

Accepted Answer

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

Question 13

Galileo wrote the Almagest.

Accepted Answer

A) True 
 B)False

Question 14

Newton used only the work of Kepler to discover his three laws of motion and the law of gravity.

Accepted Answer

A) True 
 B)False

Question 15

If an object's orbital velocity is greater than its escape velocity, then the shape of the path is a/an __________________ and the orbit is____________.

Accepted Answer

A) ellipse, closed 
B) circle, closed 
C) parabola, open 
D) parabola, closed 
A) ellipse, closed 
B) circle, closed 
C) parabola, open 
D) parabola, closed

Question 16

If a satellite is in orbit around Earth and the satellite's altitude increases, then the circular velocity __________________.

Accepted Answer

A) decreases 
B) increases 
C) is zero 
D) None of the other choices are correct. 
A) decreases 
B) increases 
C) is zero 
D) None of the other choices are correct.

Question 17

____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables.

Accepted Answer

The answer of ____________________ made very accurate observations of the...

Question 18

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 19

Kepler's second law is about the speed of planets, where planets move faster at perihelion and slower at aphelion.

Accepted Answer

A) True 
 B)False

Question 20

The spring tides occur during the new and full lunar phases.

Accepted Answer

A) True 
 B)False

The Copernican model of the solar system has the planets orbit the Sun along elliptical paths.

When two objects of unequal masses orbit each other, the center of mass is

Which law refers to a planet sweeping out equal areas in equal times as it orbits its host star

The purpose of using epicycles and deferents to explain the motion of the planets in the night sky was to account for

Kepler used Tycho's observations to show that the planets

You and your friend put the palms of your hands together and push equally on each other so your hands don't move. Which law(s) does this follow Choose the best answer. I. Newton's first II. Newton's second III) Newton's third IV) Newton's law of gravitation

The force due to gravity has the mathematical form .

Using the definitions for neap and spring tides, explain when is the best time to go surfing in one 24-hour day on Earth.

According to Kepler's third law, a planet's orbital period is equal to its average distance from the Sun .

____________________ is a description of the Ptolemaic model of the solar system.

A(n) ____ is a single conjecture that can be tested.

Galileo wrote the Almagest.

Newton used only the work of Kepler to discover his three laws of motion and the law of gravity.

If an object's orbital velocity is greater than its escape velocity, then the shape of the path is a/an ______ and the orbit is.

If a satellite is in orbit around Earth and the satellite's altitude increases, then the circular velocity __________________.

____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables.

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

Kepler's second law is about the speed of planets, where planets move faster at perihelion and slower at aphelion.

The spring tides occur during the new and full lunar phases.

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

The Copernican model of the solar system has the planets orbit the Sun along elliptical paths.

When two objects of unequal masses orbit each other, the center of mass is

Which law refers to a planet sweeping out equal areas in equal times as it orbits its host star

The purpose of using epicycles and deferents to explain the motion of the planets in the night sky was to account for

Kepler used Tycho's observations to show that the planets

You and your friend put the palms of your hands together and push equally on each other so your hands don't move. Which law(s) does this follow Choose the best answer. I. Newton's first II. Newton's second III) Newton's third IV) Newton's law of gravitation

The force due to gravity has the mathematical form .

Using the definitions for neap and spring tides, explain when is the best time to go surfing in one 24-hour day on Earth.

According to Kepler's third law, a planet's orbital period ____________________ is equal to its average distance from the Sun ____________________.

____________________ is a description of the Ptolemaic model of the solar system.

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center G = 6.67×10−116.67 × 10^{−11}6.67×10−11 m3⋅kg−1⋅s−2; MEarth = 5.98×10245.98 × 10^{24}5.98×1024 kg

A(n) ____ is a single conjecture that can be tested.

Galileo wrote the Almagest.

Newton used only the work of Kepler to discover his three laws of motion and the law of gravity.

If an object's orbital velocity is greater than its escape velocity, then the shape of the path is a/an __________________ and the orbit is____________.

If a satellite is in orbit around Earth and the satellite's altitude increases, then the circular velocity __________________.

____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables.

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

Kepler's second law is about the speed of planets, where planets move faster at perihelion and slower at aphelion.

The spring tides occur during the new and full lunar phases.

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

According to Kepler's third law, a planet's orbital period is equal to its average distance from the Sun .

If an object's orbital velocity is greater than its escape velocity, then the shape of the path is a/an ______ and the orbit is.