Question 1

Perigee is the point in ____.

Accepted Answer

A)  the Moon's orbit when the Moon is farthest from Earth 
B)  an object's orbit around Earth when the object is closest to Earth 
C)  an object's orbit around Earth when the object is closest to the Sun 
D)  a planet's orbit when the planet is closest to its sun 
E)  a planet's orbit when the planet is farthest from its sun 
A)  the Moon's orbit when the Moon is farthest from Earth 
B)  an object's orbit around Earth when the object is closest to Earth 
C)  an object's orbit around Earth when the object is closest to the Sun 
D)  a planet's orbit when the planet is closest to its sun 
E)  a planet's orbit when the planet is farthest from its sun B

Question 2

What is an example of the conservation of angular momentum?

Accepted Answer

A)  A volleyball player serves a ball and it follows a parabolic path. 
B)  A baseball player strikes the ball with the bat 
C)  A cross-country skier accelerates as she moves in a straight line 
D)  A skateboarder maintains the same velocity in the same direction 
E)  A diver brings his arms and legs closer to his body 
A)  A volleyball player serves a ball and it follows a parabolic path. 
B)  A baseball player strikes the ball with the bat 
C)  A cross-country skier accelerates as she moves in a straight line 
D)  A skateboarder maintains the same velocity in the same direction 
E)  A diver brings his arms and legs closer to his body E

Question 3

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

Accepted Answer

A) True 
 B)False  False

Question 4

Define and distinguish among the terms speed, velocity, and acceleration.

Accepted Answer

Speed is the pace at which an object mov

Question 5

An object in a closed orbit under the influence of an attractive force that follows the inverse square law must behave a(n) _______________ path.

Accepted Answer

The answer of An object in a closed orbit under...

Question 6

The second postulate of special relativity states that ____.

Accepted Answer

A)  observers cannot detect their uniform motion except relative to other objects 
B)  observers cannot distinguish locally between inertial forces and uniform gravitational forces due to acceleration and the presence of a massive body 
C)  the laws of physics are the same for all observers regardless of their motion as long as their speed is constant 
D)  the speed of light is constant and will be the same for all observers independent of their motion relative to the light source 
E)  the acceleration of an object is proportional to the applied force and inversely proportional to its mass 
A)  observers cannot detect their uniform motion except relative to other objects 
B)  observers cannot distinguish locally between inertial forces and uniform gravitational forces due to acceleration and the presence of a massive body 
C)  the laws of physics are the same for all observers regardless of their motion as long as their speed is constant 
D)  the speed of light is constant and will be the same for all observers independent of their motion relative to the light source 
E)  the acceleration of an object is proportional to the applied force and inversely proportional to its mass

Question 7

The apparent positions of stars around the sun during an eclipse have been used to prove the general theory of relativity.

Accepted Answer

A) True 
 B)False

Question 8

If an object's velocity equals or exceeds the escape velocity, it will follow a closed parabolic or hyperbolic orbit.

Accepted Answer

A) True 
 B)False

Question 9

The ______________ of the Moon's orbit is the location at which it is farthest from Earth.

Accepted Answer

The answer of The ______________ of the Moon's orbit is...

Question 10

_______________ occur when tides caused by the Sun and Moon partially cancel out.

Accepted Answer

The answer of _______________ occur when tides caused by the...

Question 11

Newton's second law of motion is represented by ____.

Accepted Answer

A)  $E = m _ { 0 } c ^ { 2 }$ 
B)  $F = - \frac { G M m } { r ^ { 2 } }$ 
C)  $V _ { c } = \sqrt { \frac { G M } { r } }$ 
D)  $V _ { c } = \sqrt { \frac { 2 G M } { r } }$ 
E)  $F = m a$ 
A)  $E = m _ { 0 } c ^ { 2 }$ 
B)  $F = - \frac { G M m } { r ^ { 2 } }$ 
C)  $V _ { c } = \sqrt { \frac { G M } { r } }$ 
D)  $V _ { c } = \sqrt { \frac { 2 G M } { r } }$ 
E)  $F = m a$

Question 12

The force due to the gravity between two objects depends on the ____,

Accepted Answer

A)  combined mass and velocity of both objects 
B)  mass of each object and the distance between them 
C)  distance of each object from Earth and distance between them 
D)  speed of light and the distance of each object from Earth 
E)  mass of each object and the speed of light 
A)  combined mass and velocity of both objects 
B)  mass of each object and the distance between them 
C)  distance of each object from Earth and distance between them 
D)  speed of light and the distance of each object from Earth 
E)  mass of each object and the speed of light

Question 13

Aristotle believed that objects falling to the ground fall at a constant rate of speed.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

The Answer of Mass and Inertia and Closed orbit and is...

Question 15

Special relativity states the relationship between energy and mass as $E = m _ { 0 } c ^ { 2 } v _ { E }$ .

Accepted Answer

A) True 
 B)False

Question 16

Explain why the term acceleration is important to the first postulate of special relativity.

Accepted Answer

The first postulate states that the laws

Question 17

The term _______________ refers to a change in velocity.

Accepted Answer

The answer of The term _______________ refers to a change...

Question 18

The importance of the general theory of relativity lies in its description of ____.

Accepted Answer

A)  acceleration 
B)  gravity 
C)  mass 
D)  space-time 
E)  velocity 
A)  acceleration 
B)  gravity 
C)  mass 
D)  space-time 
E)  velocity

Question 19

According to __________, _______________ motion occurs when natural motion has to be sustained by a force.

Accepted Answer

The answer of According to __________, _______________ motion occurs when...

Question 20

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

Exam 5: Gravity

Perigee is the point in ____.

What is an example of the conservation of angular momentum?

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

Define and distinguish among the terms speed, velocity, and acceleration.

An object in a closed orbit under the influence of an attractive force that follows the inverse square law must behave a(n) _______________ path.

The second postulate of special relativity states that ____.

The apparent positions of stars around the sun during an eclipse have been used to prove the general theory of relativity.

If an object's velocity equals or exceeds the escape velocity, it will follow a closed parabolic or hyperbolic orbit.

The ______________ of the Moon's orbit is the location at which it is farthest from Earth.

_______________ occur when tides caused by the Sun and Moon partially cancel out.

Newton's second law of motion is represented by ____.

The force due to the gravity between two objects depends on the ____,

Aristotle believed that objects falling to the ground fall at a constant rate of speed.

Special relativity states the relationship between energy and mass as E=m0c2vEE = m _ { 0 } c ^ { 2 } v _ { E }E=m0​c2vE​ .

Explain why the term acceleration is important to the first postulate of special relativity.

The term _______________ refers to a change in velocity.

The importance of the general theory of relativity lies in its description of ____.

According to __________, _______________ motion occurs when natural motion has to be sustained by a force.

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

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

Deaths of Stars

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

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters

Special relativity states the relationship between energy and mass as $E = m _ { 0 } c ^ { 2 } v _ { E }$ .

According to , _____ motion occurs when natural motion has to be sustained by a force.