Question 1

The neap tides occur at the new moon and full moon.

Accepted Answer

A) True 
 B)False

Question 2

Kinetic energy refers to the energy of a(n)____.

Accepted Answer

A)  stationary body 
B)  moving body 
C)  moon 
D)  gravitational field 
E)  object due to its position 
A)  stationary body 
B)  moving body 
C)  moon 
D)  gravitational field 
E)  object due to its position

Question 3

If the orbital velocity of the Moon is 1.0 km/s, what is the orbital velocity of a satellite that is 1/16th as far from Earth as the Moon? Hints: There is a long way and a short way to do this calculation.    ; G = 6.67  10-11 m3/s2/kg

Accepted Answer

A)  1/16 km/s 
B)  1/8 km/s 
C)  4 km/s 
D)  8 km/s 
E)  16 km/s 
A)  1/16 km/s 
B)  1/8 km/s 
C)  4 km/s 
D)  8 km/s 
E)  16 km/s

Question 4

Newton's first law of motion was very similar to descriptions of motion proposed by _______________.

Accepted Answer

The answer of Newton's first law of motion was very...

Question 5

According to Aristotle, an object with no forces acting on it will ____.

Accepted Answer

A)  move faster and faster 
B)  eventually stop moving 
C)  move at a constant speed forever 
D)  first increase and then decrease in speed 
E)  first decrease and then increase in speed 
A)  move faster and faster 
B)  eventually stop moving 
C)  move at a constant speed forever 
D)  first increase and then decrease in speed 
E)  first decrease and then increase in speed

Question 6

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

Accepted Answer

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

Question 7

Match between columns
                        Premises: Occurs without force
States that observers cannot detect their uniform motion through space through internal tests
States that a gravitational field is a curvature of space-time caused by the presence of mass
A measure of an object's mass along with its speed of rotation
The amount of matter in a body
A measure of an object's amount of motion
Follows an elliptical path
States that the force of gravity is inversely proportional to the square of the distance between two masses
The resistance of matter to changes in motion
The velocity required to break free of an astronomical body

Accepted Answer

The Answer of Closed orbit and Natural motion and Special is...

Question 8

Explain why the spring and neap tides occur periodically.

Accepted Answer

Gravity is universal, so the Sun also pr

Question 9

The ____ of an object is a measure of the amount of matter it contains. The ____ is a measure of the gravitational force on an object.

Accepted Answer

A)  weight; mass 
B)  mass; weight 
C)  energy; force 
D)  force; energy 
E)  momentum; energy 
A)  weight; mass 
B)  mass; weight 
C)  energy; force 
D)  force; energy 
E)  momentum; energy

Question 10

A ball is dropped from the top of a science building. After falling for three seconds, the speed of the ball would be _______________ m/sec.

Accepted Answer

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

Question 11

Gravity obeys the inverse square law, which implies that the gravitational force of one body on another will be ____ times stronger at two meters than at six meters apart.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  9 
E)  10 
A)  2 
B)  3 
C)  4 
D)  9 
E)  10

Question 12

According to Aristotle, which scenario illustrates violent motion?

Accepted Answer

A)  An apple falling from a tree 
B)  A mass of warm air rising above hot pavement 
C)  An arrow moving through the air after leaving the bow 
D)  A person pushing a car along the street 
E)  A barrel rolling down a ramp 
A)  An apple falling from a tree 
B)  A mass of warm air rising above hot pavement 
C)  An arrow moving through the air after leaving the bow 
D)  A person pushing a car along the street 
E)  A barrel rolling down a ramp

Question 13

Which statement expresses Newton's first law of motion?

Accepted Answer

A)  An object with no force on acting on it continues at rest or moves in uniform motion 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. 
E)  The force between two objects is inversely proportional to the product of their masses and directly proportional to the distance between them squared. 
A)  An object with no force on acting on it continues at rest or moves in uniform motion 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. 
E)  The force between two objects is inversely proportional to the product of their masses and directly proportional to the distance between them squared.

Question 14

In contradiction to the teachings of Aristotle, Galileo found that an object with no forces (and no friction) acting on it will ____.

Accepted Answer

A)  move faster and faster 
B)  eventually stop moving 
C)  move at a constant speed forever 
D)  first increase and then decrease in speed 
E)  first decrease and then increase in speed 
A)  move faster and faster 
B)  eventually stop moving 
C)  move at a constant speed forever 
D)  first increase and then decrease in speed 
E)  first decrease and then increase in speed

Question 15

According to Galileo, the acceleration of a freely falling object due to gravity is ____.

Accepted Answer

A)  larger if the object is dropped from a greater height 
B)  smaller if the object is dropped from a greater height 
C)  larger if the mass of the object is larger 
D)  smaller if the mass of the object is larger 
E)  the same regardless of the mass and the height from which it is dropped 
A)  larger if the object is dropped from a greater height 
B)  smaller if the object is dropped from a greater height 
C)  larger if the mass of the object is larger 
D)  smaller if the mass of the object is larger 
E)  the same regardless of the mass and the height from which it is dropped

Question 16

As described by Kepler's second law, an object in an elliptical orbit reaches its highest velocity when it is as at ____.

Accepted Answer

A)  lowest; perigree 
B)  highest; apogee 
C)  highest; perigree 
D)  lowest; apogee 
E)  escape velocity; perigree 
A)  lowest; perigree 
B)  highest; apogee 
C)  highest; perigree 
D)  lowest; apogee 
E)  escape velocity; perigree

Question 17

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint:   ; G = 6.67  10 -11 mS1U1P13S1S1P0 /sS1U1P12S1S1P0 /kg

Accepted Answer

A)  0.2 m/s 
B)  2 m/s 
C)  20 m/s 
D)  200 m/s 
E)  2,000 m/s 
A)  0.2 m/s 
B)  2 m/s 
C)  20 m/s 
D)  200 m/s 
E)  2,000 m/s

Question 18

The escape velocity at a given distance from a planet is less than the circular velocity of an orbit around that planet at the same distance.

Accepted Answer

A) True 
 B)False

Question 19

Special relativity predicts that the observed mass of a moving particle depends on its ____.

Accepted Answer

A)  inertia 
B)  curvature 
C)  velocity 
D)  force 
E)  true position 
A)  inertia 
B)  curvature 
C)  velocity 
D)  force 
E)  true position

Question 20

The equivalence principle can be best illustrated by ____.

Accepted Answer

A)  a person riding in an elevator 
B)  a rocket coasting through space at a constant velocity 
C)  the change in mass of a moving body 
D)  the formation of energy by nuclear fusion 
E)  a car ride on a highway with the windows open 
A)  a person riding in an elevator 
B)  a rocket coasting through space at a constant velocity 
C)  the change in mass of a moving body 
D)  the formation of energy by nuclear fusion 
E)  a car ride on a highway with the windows open

Exam 5: Gravity

The neap tides occur at the new moon and full moon.

Kinetic energy refers to the energy of a(n)____.

If the orbital velocity of the Moon is 1.0 km/s, what is the orbital velocity of a satellite that is 1/16th as far from Earth as the Moon? Hints: There is a long way and a short way to do this calculation. ; G = 6.67 10-11 m3/s2/kg

Newton's first law of motion was very similar to descriptions of motion proposed by _______________.

According to Aristotle, an object with no forces acting on it will ____.

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

Explain why the spring and neap tides occur periodically.

The ____ of an object is a measure of the amount of matter it contains. The ____ is a measure of the gravitational force on an object.

A ball is dropped from the top of a science building. After falling for three seconds, the speed of the ball would be _______________ m/sec.

Gravity obeys the inverse square law, which implies that the gravitational force of one body on another will be ____ times stronger at two meters than at six meters apart.

According to Aristotle, which scenario illustrates violent motion?

Which statement expresses Newton's first law of motion?

In contradiction to the teachings of Aristotle, Galileo found that an object with no forces (and no friction) acting on it will ____.

According to Galileo, the acceleration of a freely falling object due to gravity is ____.

As described by Kepler's second law, an object in an elliptical orbit reaches its highest velocity when it is as at ____.

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint: ; G = 6.67 10 -11 m3 /s2 /kg

The escape velocity at a given distance from a planet is less than the circular velocity of an orbit around that planet at the same distance.

Special relativity predicts that the observed mass of a moving particle depends on its ____.

The equivalence principle can be best illustrated by ____.

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

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Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

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Uranus Neptune Pluto and the Kuiper Belt

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If the orbital velocity of the Moon is 1.0 km/s, what is the orbital velocity of a satellite that is 1/16th as far from Earth as the Moon? Hints: There is a long way and a short way to do this calculation. ; G = 6.67 10^-11 m³/s²/kg

The of an object is a measure of the amount of matter it contains. The is a measure of the gravitational force on an object.

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint: ; G = 6.67 10 -11 m³ /s² /kg