Question 1

Who was the first astronomer to make measurements of the sky with a telescope?

Accepted Answer

A)  Nicolaus Copernicus 
B)  Tycho Brahe 
C)  Galileo Galilei 
D)  Isaac Newton 
A)  Nicolaus Copernicus 
B)  Tycho Brahe 
C)  Galileo Galilei 
D)  Isaac Newton

Question 2

An object travels at 10 m/s through interstellar space.If no forces act upon it,it will:

Accepted Answer

A)  enter a circular orbit. 
B)  gradually slow to a stop. 
C)  accelerate. 
D)  continue with the same velocity. 
A)  enter a circular orbit. 
B)  gradually slow to a stop. 
C)  accelerate. 
D)  continue with the same velocity.

Question 3

In the heliocentric model,retrograde motion occurs when:

Accepted Answer

A)  a planet travels along an epicycle in the opposite sense of its usual orbit. 
B)  Earth is moving along its orbit on the opposite side of the Sun from another planet. 
C)  a planet's velocity changes as it moves nearer to or farther from the Sun. 
D)  Earth catches and passes another planet in its orbit. 
A)  a planet travels along an epicycle in the opposite sense of its usual orbit. 
B)  Earth is moving along its orbit on the opposite side of the Sun from another planet. 
C)  a planet's velocity changes as it moves nearer to or farther from the Sun. 
D)  Earth catches and passes another planet in its orbit.

Question 4

List four of Galileo's pieces of observational evidence for the heliocentric model.

Accepted Answer

His discoveries included the f

Question 5

Planet A has nine times the mass of planet B,but they have equal radii.How fast would you have to launch a rocket from planet A for it to escape the pull of its gravity,if the corresponding speed for planet A is 10 m/s?

Accepted Answer

A)  3 m/s 
B)  10 m/s 
C)  30 m/s 
D)  90 m/s 
A)  3 m/s 
B)  10 m/s 
C)  30 m/s 
D)  90 m/s

Question 6

How could Isaac Newton have measured the mass of Jupiter?

Accepted Answer

Under the assumption that Jupiter is muc

Question 7

The gravitational force experienced by Earth due to the Moon is ________ the gravitational force experienced by the Moon due to Earth.(Note that the Moon is about 1% of the mass of Earth.)

Accepted Answer

A)  10-4 times 
B)  10-2 times 
C)  equal to 
D)  104 
A)  10-4 times 
B)  10-2 times 
C)  equal to 
D)  104

Question 8

A ball is dropped from the top of a tower in New York City.Assuming that it begins at rest,what is its speed after three seconds have elapsed? (The acceleration due to gravity on Earth is 9.8 m/s².)

Accepted Answer

The answer of A ball is dropped from the top...

Question 9

The Copernican model required the solar system to be ________ than it was in Ptolemy's model.

Accepted Answer

A)  older 
B)  younger 
C)  larger 
D)  smaller 
A)  older 
B)  younger 
C)  larger 
D)  smaller

Question 10

Characterize the central difference between Aristotle's approach to understanding natural phenomena and Galileo's approach.

Accepted Answer

Aristotle formulated philosoph

Question 11

Sally Scientist applies an equal force to two objects.The first has a mass of 40 kg and the second has a mass of 10 kg.If the first object accelerates at 10 m/s²,what is the acceleration of the second?

Accepted Answer

A)  2.5 m/s2 
B)  5.0 m/s2 
C)  10 m/s2 
D)  40 m/s2 
A)  2.5 m/s2 
B)  5.0 m/s2 
C)  10 m/s2 
D)  40 m/s2

Question 12

Why did Copernicus's model set the scale of the solar system?

Accepted Answer

The timing of retrog

Question 13

Two asteroids orbit the sun at distances of 1 AU and 4 AU,respectively,both on circular orbits.If the first asteroid travels at about 30 km/s,what is the speed of the more distant asteroid? If you changed the more distant asteroid's speed to be 30 km/s,what would happen?

Accepted Answer

The second asteroid orbits at

Question 14

Name the elements A,B,C,and D of the ellipse shown below.

Accepted Answer

A is the semiminor a

Question 15

Pluto is about 40 times farther from the Sun than Earth is.How much smaller is Pluto's acceleration due to the Sun's gravity than Earth's?

Accepted Answer

A)  1/402 
B)  1/40 
C)  1/20 
D)  They are the same. 
A)  1/402 
B)  1/40 
C)  1/20 
D)  They are the same.

Question 16

Planets in the solar system follow:

Accepted Answer

A)  circular orbits with the Sun displaced from the center. 
B)  circular orbits with the Sun at the center. 
C)  elliptical orbits with the Sun at one focus. 
D)  elliptical orbits with the Sun at the center. 
A)  circular orbits with the Sun displaced from the center. 
B)  circular orbits with the Sun at the center. 
C)  elliptical orbits with the Sun at one focus. 
D)  elliptical orbits with the Sun at the center.

Question 17

The acceleration experienced by Earth due to the Moon's gravity is ________ the acceleration experienced by the Moon due to Earth's gravity.(Note that the Moon is about 1% of the mass of Earth.)

Accepted Answer

A)  10-4 times 
B)  10-2 times 
C)  equal to 
D)  104 
A)  10-4 times 
B)  10-2 times 
C)  equal to 
D)  104

Question 18

Galileo overturned Aristotelian physics by showing that:

Accepted Answer

A)  Earth is spherical. 
B)  Earth rotates daily. 
C)  the gravitational force decreases with distance. 
D)  objects accelerate as they fall. 
A)  Earth is spherical. 
B)  Earth rotates daily. 
C)  the gravitational force decreases with distance. 
D)  objects accelerate as they fall.

Question 19

Two asteroids,A and B,orbit the Sun on circular orbits with radii of 1 AU and 4 AU,respectively.How do their orbital velocities compare to each other?

Accepted Answer

A)  Asteroid A has twice the velocity of asteroid B. 
B)  Asteroid A has four times the velocity of asteroid B. 
C)  Asteroid A has eight times the velocity of asteroid B. 
D)  The asteroids have identical velocities. 
A)  Asteroid A has twice the velocity of asteroid B. 
B)  Asteroid A has four times the velocity of asteroid B. 
C)  Asteroid A has eight times the velocity of asteroid B. 
D)  The asteroids have identical velocities.

Question 20

Why did Ptolemy's work remain popular in Europe through 1500 CE?

Accepted Answer

Ptolemy's model made accurate

Who was the first astronomer to make measurements of the sky with a telescope?

An object travels at 10 m/s through interstellar space.If no forces act upon it,it will:

In the heliocentric model,retrograde motion occurs when:

List four of Galileo's pieces of observational evidence for the heliocentric model.

Planet A has nine times the mass of planet B,but they have equal radii.How fast would you have to launch a rocket from planet A for it to escape the pull of its gravity,if the corresponding speed for planet A is 10 m/s?

How could Isaac Newton have measured the mass of Jupiter?

The gravitational force experienced by Earth due to the Moon is ________ the gravitational force experienced by the Moon due to Earth.(Note that the Moon is about 1% of the mass of Earth.)

A ball is dropped from the top of a tower in New York City.Assuming that it begins at rest,what is its speed after three seconds have elapsed? (The acceleration due to gravity on Earth is 9.8 m/s².)

The Copernican model required the solar system to be ________ than it was in Ptolemy's model.

Characterize the central difference between Aristotle's approach to understanding natural phenomena and Galileo's approach.

Sally Scientist applies an equal force to two objects.The first has a mass of 40 kg and the second has a mass of 10 kg.If the first object accelerates at 10 m/s²,what is the acceleration of the second?

Why did Copernicus's model set the scale of the solar system?

Two asteroids orbit the sun at distances of 1 AU and 4 AU,respectively,both on circular orbits.If the first asteroid travels at about 30 km/s,what is the speed of the more distant asteroid? If you changed the more distant asteroid's speed to be 30 km/s,what would happen?

Name the elements A,B,C,and D of the ellipse shown below.

Pluto is about 40 times farther from the Sun than Earth is.How much smaller is Pluto's acceleration due to the Sun's gravity than Earth's?

Planets in the solar system follow:

The acceleration experienced by Earth due to the Moon's gravity is ________ the acceleration experienced by the Moon due to Earth's gravity.(Note that the Moon is about 1% of the mass of Earth.)

Galileo overturned Aristotelian physics by showing that:

Two asteroids,A and B,orbit the Sun on circular orbits with radii of 1 AU and 4 AU,respectively.How do their orbital velocities compare to each other?

Why did Ptolemy's work remain popular in Europe through 1500 CE?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

Filters

Exam 3: A Universe of Universal Laws

Who was the first astronomer to make measurements of the sky with a telescope?

An object travels at 10 m/s through interstellar space.If no forces act upon it,it will:

In the heliocentric model,retrograde motion occurs when:

List four of Galileo's pieces of observational evidence for the heliocentric model.

Planet A has nine times the mass of planet B,but they have equal radii.How fast would you have to launch a rocket from planet A for it to escape the pull of its gravity,if the corresponding speed for planet A is 10 m/s?

How could Isaac Newton have measured the mass of Jupiter?

The gravitational force experienced by Earth due to the Moon is ________ the gravitational force experienced by the Moon due to Earth.(Note that the Moon is about 1% of the mass of Earth.)

A ball is dropped from the top of a tower in New York City.Assuming that it begins at rest,what is its speed after three seconds have elapsed? (The acceleration due to gravity on Earth is 9.8 m/s².)

The Copernican model required the solar system to be ________ than it was in Ptolemy's model.

Characterize the central difference between Aristotle's approach to understanding natural phenomena and Galileo's approach.

Sally Scientist applies an equal force to two objects.The first has a mass of 40 kg and the second has a mass of 10 kg.If the first object accelerates at 10 m/s²,what is the acceleration of the second?

Why did Copernicus's model set the scale of the solar system?

Two asteroids orbit the sun at distances of 1 AU and 4 AU,respectively,both on circular orbits.If the first asteroid travels at about 30 km/s,what is the speed of the more distant asteroid? If you changed the more distant asteroid's speed to be 30 km/s,what would happen?

Name the elements A,B,C,and D of the ellipse shown below.

Pluto is about 40 times farther from the Sun than Earth is.How much smaller is Pluto's acceleration due to the Sun's gravity than Earth's?

Planets in the solar system follow:

The acceleration experienced by Earth due to the Moon's gravity is ________ the acceleration experienced by the Moon due to Earth's gravity.(Note that the Moon is about 1% of the mass of Earth.)

Galileo overturned Aristotelian physics by showing that:

Two asteroids,A and B,orbit the Sun on circular orbits with radii of 1 AU and 4 AU,respectively.How do their orbital velocities compare to each other?

Why did Ptolemy's work remain popular in Europe through 1500 CE?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

Filters