Question 1

Explain how gravity is used to explain the presence of the tides we experience on Earth.

Accepted Answer

Tides are produced by small differences

Question 2

Geosynchronous satellites

Accepted Answer

A) have an orbital period of 24 hours. 
B) remain above a geographical point on Earth while Earth rotates underneath. 
C) have an orbital period of 24 hours and remain above a geographical point on Earth while Earth rotates underneath. 
D) None of the other choices are correct. 
A) have an orbital period of 24 hours. 
B) remain above a geographical point on Earth while Earth rotates underneath. 
C) have an orbital period of 24 hours and remain above a geographical point on Earth while Earth rotates underneath. 
D) None of the other choices are correct.

Question 3

The first observations of objects in the solar system that orbited neither the Sun nor Earth were made by ____________________.

Accepted Answer

The answer of The first observations of objects in the...

Question 4

Parallax is the apparent change in location of an object due to the motion of the observer.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements best describes Kepler's 3rd law of planetary motion

Accepted Answer

A) The smaller the diameter of a planet, the faster its rotational period is. 
B) The orbital period of a planet is directly proportional to the diameter of the planet. 
C) The smaller the orbit, the longer its orbital period is. 
D) The larger the orbit, the longer its orbital period is. 
A) The smaller the diameter of a planet, the faster its rotational period is. 
B) The orbital period of a planet is directly proportional to the diameter of the planet. 
C) The smaller the orbit, the longer its orbital period is. 
D) The larger the orbit, the longer its orbital period is.

Question 6

If a planet orbits the Sun at a distance of 4 AU, then its orbital period is 8 years.

Accepted Answer

A) True 
 B)False

Question 7

Galileo's telescopic discoveries of mountains on the Moon and spots on the Sun were controversial because they suggested that the Sun and Moon

Accepted Answer

A) were the same kind of object. 
B) were not perfect spheres. 
C) were inhabited. 
D) orbited each other. 
E) did not orbit Earth. 
A) were the same kind of object. 
B) were not perfect spheres. 
C) were inhabited. 
D) orbited each other. 
E) did not orbit Earth.

Question 8

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 9

Which of the following planets can be seen as a crescent phase from Earth

Accepted Answer

A) Mercury 
B) Venus 
C) Mars 
D) Mercury and Venus 
E) All of the other choices are correct. 
A) Mercury 
B) Venus 
C) Mars 
D) Mercury and Venus 
E) All of the other choices are correct.

Question 10

Saturn orbits the Sun and follows which laws Choose the best answer.
I. Kepler's first 
II. Kepler's second
III. Kepler's third
IV. Newton's law of gravitation

Accepted Answer

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

Question 11

Which of the following objects cannot transit (i.e., pass in front of) the Sun as seen from Jupiter

Accepted Answer

A) Mars 
B) Earth 
C) Saturn 
D) Mercury 
E) Venus 
A) Mars 
B) Earth 
C) Saturn 
D) Mercury 
E) Venus

Question 12

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 13

Tides occur because the gravitational force of the Moon on Earth ____ with increasing distance from the Moon.

Accepted Answer

A) stays constant 
B) increases 
C) decreases 
A) stays constant 
B) increases 
C) decreases

Question 14

Tycho's universe was the same as the Copernican universe except that

Accepted Answer

A) Earth did not move. 
B) the Sun did not move. 
C) the Moon orbited the Sun. 
D) the orbits were elliptical with the Sun at one focus. 
E) the orbits followed uniform circular motion. 
A) Earth did not move. 
B) the Sun did not move. 
C) the Moon orbited the Sun. 
D) the orbits were elliptical with the Sun at one focus. 
E) the orbits followed uniform circular motion.

Question 15

An object has been located orbiting the Sun at a distance from the Sun of 65 AU. What is the approximate orbital period of this object

Accepted Answer

A) 65 years 
B) 275,000 years 
C) 4225 years 
D) 8.1 years 
E) 524 years 
A) 65 years 
B) 275,000 years 
C) 4225 years 
D) 8.1 years 
E) 524 years

Question 16

The greatest inaccuracy in Copernicus's model of the solar system was that the planets

Accepted Answer

A) traveled in circular orbits with uniform motion. 
B) traveled on epicycles whose centers followed orbits around the Sun. 
C) traveled in elliptical orbits. 
D) were allowed to travel backwards in their orbits. 
E) orbited the Sun. 
A) traveled in circular orbits with uniform motion. 
B) traveled on epicycles whose centers followed orbits around the Sun. 
C) traveled in elliptical orbits. 
D) were allowed to travel backwards in their orbits. 
E) orbited the Sun.

Question 17

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

Accepted Answer

A) decreases 
B) increases 
C) stays the same 
D) is zero 
A) decreases 
B) increases 
C) stays the same 
D) is zero

Question 18

The force due to gravity between two objects depends on I.the mass of each object.II.the distance each object is from Earth.III.the distance between the two objects.IV.the speed of light.

Accepted Answer

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

Question 19

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

Accepted Answer

geocentric

Question 20

____ occur when the Moon is first or third quarter.

Accepted Answer

A) Neap tides 
B) Spring tides 
C) Total solar eclipses 
D) Annular eclipses 
E) A coppery red Moon will 
A) Neap tides 
B) Spring tides 
C) Total solar eclipses 
D) Annular eclipses 
E) A coppery red Moon will

Explain how gravity is used to explain the presence of the tides we experience on Earth.

Geosynchronous satellites

The first observations of objects in the solar system that orbited neither the Sun nor Earth were made by ____________________.

Parallax is the apparent change in location of an object due to the motion of the observer.

Which of the following statements best describes Kepler's 3rd law of planetary motion

If a planet orbits the Sun at a distance of 4 AU, then its orbital period is 8 years.

Galileo's telescopic discoveries of mountains on the Moon and spots on the Sun were controversial because they suggested that the Sun and Moon

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

Which of the following planets can be seen as a crescent phase from Earth

Saturn orbits the Sun and follows which laws Choose the best answer. I. Kepler's first II. Kepler's second III. Kepler's third IV. Newton's law of gravitation

Which of the following objects cannot transit (i.e., pass in front of) the Sun as seen from Jupiter

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

Tides occur because the gravitational force of the Moon on Earth ____ with increasing distance from the Moon.

Tycho's universe was the same as the Copernican universe except that

An object has been located orbiting the Sun at a distance from the Sun of 65 AU. What is the approximate orbital period of this object

The greatest inaccuracy in Copernicus's model of the solar system was that the planets

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

The force due to gravity between two objects depends on I.the mass of each object.II.the distance each object is from Earth.III.the distance between the two objects.IV.the speed of light.

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

____ occur when the Moon is first or third quarter.

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

Explain how gravity is used to explain the presence of the tides we experience on Earth.

Geosynchronous satellites

The first observations of objects in the solar system that orbited neither the Sun nor Earth were made by ____________________.

Parallax is the apparent change in location of an object due to the motion of the observer.

Which of the following statements best describes Kepler's 3rd law of planetary motion

If a planet orbits the Sun at a distance of 4 AU, then its orbital period is 8 years.

Galileo's telescopic discoveries of mountains on the Moon and spots on the Sun were controversial because they suggested that the Sun and Moon

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

Which of the following planets can be seen as a crescent phase from Earth

Saturn orbits the Sun and follows which laws Choose the best answer. I. Kepler's first II. Kepler's second III. Kepler's third IV. Newton's law of gravitation

Which of the following objects cannot transit (i.e., pass in front of) the Sun as seen from Jupiter

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

Tides occur because the gravitational force of the Moon on Earth ____ with increasing distance from the Moon.

Tycho's universe was the same as the Copernican universe except that

An object has been located orbiting the Sun at a distance from the Sun of 65 AU. What is the approximate orbital period of this object

The greatest inaccuracy in Copernicus's model of the solar system was that the planets

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

The force due to gravity between two objects depends on I.the mass of each object.II.the distance each object is from Earth.III.the distance between the two objects.IV.the speed of light.

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

____ occur when the Moon is first or third quarter.

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 .