Question 1

Cosmology is the study of the overall structure and evolution of

Accepted Answer

A) the universe. 
B) stars. 
C) beauty. 
D) galaxies. 
A) the universe. 
B) stars. 
C) beauty. 
D) galaxies. A

Question 2

The "Big Bang" refers to the

Accepted Answer

A) point in time in which the known (and perhaps knowable)universe came into being. 
B) phenomenon of rapid chain reaction supernovae during the first 100 seconds of the universe. 
C) time when our Sun will become a nova,rendering Earth into molten lava. 
D) end of the universe when simultaneous supernovae will transform the universe into a supergiant black hole. 
A) point in time in which the known (and perhaps knowable)universe came into being. 
B) phenomenon of rapid chain reaction supernovae during the first 100 seconds of the universe. 
C) time when our Sun will become a nova,rendering Earth into molten lava. 
D) end of the universe when simultaneous supernovae will transform the universe into a supergiant black hole. A

Question 3

When we speak of time dilation,we mean that time

Accepted Answer

A) compresses with speed. 
B) stretches with speed. 
C) is constant at all speeds. 
A) compresses with speed. 
B) stretches with speed. 
C) is constant at all speeds. B

Question 4

Suppose at the surface of the Earth a person can do 20 pushups.In a spaceship far away from any gravitational influence,accelerating at g,the same person could do

Accepted Answer

A) less than 20 pushups. 
B) 20 pushups. 
C) more than 20 pushups. 
A) less than 20 pushups. 
B) 20 pushups. 
C) more than 20 pushups.

Question 5

It currently appears that within this universe we have mostly

Accepted Answer

A) neutrinos. 
B) matter. 
C) dark matter. 
D) dark energy. 
A) neutrinos. 
B) matter. 
C) dark matter. 
D) dark energy.

Question 6

Eternal Inflation refers to

Accepted Answer

A) the possibility that our universe is only a patch of a greater universe and that the process of universe spawning will continue forever. 
B) the observation that cosmic inflation could eventually curve back in on itself,causing its opposite: the compression of space. 
C) cosmic inflation inflating itself such that its own inflation is self-generating. 
D) the presence of a distinct beginning of time. 
A) the possibility that our universe is only a patch of a greater universe and that the process of universe spawning will continue forever. 
B) the observation that cosmic inflation could eventually curve back in on itself,causing its opposite: the compression of space. 
C) cosmic inflation inflating itself such that its own inflation is self-generating. 
D) the presence of a distinct beginning of time.

Question 7

We are actually looking into the past when we look at

Accepted Answer

A) a distant star. 
B) our physics book. 
C) actually,both of these 
D) none of these 
A) a distant star. 
B) our physics book. 
C) actually,both of these 
D) none of these

Question 8

Cosmic Inflation refers to

Accepted Answer

A) an extremely rapid expansion of the early universe that occurred in an extremely brief period of time. 
B) the fact that there is an ever increasing energy cost in order for fusion within stars to occur. 
C) the phenomenon of matter within the universe is becoming increasingly disordered. 
D) is another way of referring to the Big Bang itself. 
A) an extremely rapid expansion of the early universe that occurred in an extremely brief period of time. 
B) the fact that there is an ever increasing energy cost in order for fusion within stars to occur. 
C) the phenomenon of matter within the universe is becoming increasingly disordered. 
D) is another way of referring to the Big Bang itself.

Question 9

In his special theory of relativity,Einstein stated that the laws of physics are

Accepted Answer

A) different in different situations. 
B) common sense applied to microscopic and macroscopic things. 
C) the same in all frames of reference. 
D) the same in all uniformly moving frames of reference. 
A) different in different situations. 
B) common sense applied to microscopic and macroscopic things. 
C) the same in all frames of reference. 
D) the same in all uniformly moving frames of reference.

Question 10

The Big Bang is regarded as the expansion of

Accepted Answer

A) space. 
B) energy. 
C) time. 
D) matter. 
A) space. 
B) energy. 
C) time. 
D) matter.

Question 11

A greater gravitational field causes time to

Accepted Answer

A) speed up. 
B) slow down. 
C) fluctuate. 
D) Gravity has no measurable effect on time. 
A) speed up. 
B) slow down. 
C) fluctuate. 
D) Gravity has no measurable effect on time.

Question 12

If the elliptical orbit of Mercury were more eccentric,its precession rate would be

Accepted Answer

A) larger than it is now. 
B) smaller than it is now. 
C) the same as it is now. 
D) nonexistent. 
A) larger than it is now. 
B) smaller than it is now. 
C) the same as it is now. 
D) nonexistent.

Question 13

A strong gravitational field

Accepted Answer

A) slows a clock. 
B) speeds up a clock. 
C) has no effect on the speed of a clock. 
A) slows a clock. 
B) speeds up a clock. 
C) has no effect on the speed of a clock.

Question 14

According to cosmic inflation theory,the distribution of galaxies we see today is a consequence of

Accepted Answer

A) the evolution of dark matter. 
B) quantum fluctuations in the exceedingly small early universe. 
C) random expansion. 
D) some force yet to be identified. 
A) the evolution of dark matter. 
B) quantum fluctuations in the exceedingly small early universe. 
C) random expansion. 
D) some force yet to be identified.

Question 15

The Big Rip refers to the

Accepted Answer

A) accelerating influence of dark energy,causing all matter to become completely ripped apart. 
B) phenomenon of dark energy causing the universe to rip into multiple spacetimes. 
C) possibility that galactic centers may suddenly implode causing galactic disintegration. 
D) phenomenon of dark energy decelerating,causing all matter to disintegrate. 
A) accelerating influence of dark energy,causing all matter to become completely ripped apart. 
B) phenomenon of dark energy causing the universe to rip into multiple spacetimes. 
C) possibility that galactic centers may suddenly implode causing galactic disintegration. 
D) phenomenon of dark energy decelerating,causing all matter to disintegrate.

Question 16

The Big Bang

Accepted Answer

A) took place within space. 
B) marked the beginning of space and time. 
C) occurred as a result of disturbances within the Large Magellenic cloud. 
D) took place within time. 
A) took place within space. 
B) marked the beginning of space and time. 
C) occurred as a result of disturbances within the Large Magellenic cloud. 
D) took place within time.

Question 17

Cosmic background radiation refers to

Accepted Answer

A) uniformly distributed residual radiation that resulted from the Big Bang. 
B) pockets of radiation found in certain quadrants of the observable universe. 
C) the radiation emitted from galactic nuclei. 
D) redshifted microwave radiation being emitted from the center of the universe. 
A) uniformly distributed residual radiation that resulted from the Big Bang. 
B) pockets of radiation found in certain quadrants of the observable universe. 
C) the radiation emitted from galactic nuclei. 
D) redshifted microwave radiation being emitted from the center of the universe.

Question 18

The Big Bang occurred

Accepted Answer

A) at the tip of your nose. 
B) at the center of each galaxy. 
C) at some undetermined yet vastly distant point. 
D) within an unusually large supernova. 
A) at the tip of your nose. 
B) at the center of each galaxy. 
C) at some undetermined yet vastly distant point. 
D) within an unusually large supernova.

Question 19

According to dark matter theory,most of the mass of a spiral galaxy is found

Accepted Answer

A) within the central supermassive black hole. 
B) within the luminescent spiral arms. 
C) outside of the luminescent spiral arms. 
D) in the form of dark energy. 
A) within the central supermassive black hole. 
B) within the luminescent spiral arms. 
C) outside of the luminescent spiral arms. 
D) in the form of dark energy.

Question 20

In a 1-g gravitational field,in 1 s,a light beam will curve beneath a perfectly straight line by

Accepted Answer

A) much less than 4.9 m. 
B) about 4.9 m. 
C) much more than 4.9 m. 
A) much less than 4.9 m. 
B) about 4.9 m. 
C) much more than 4.9 m.

Exam 28: The Structure of Space and Time

Cosmology is the study of the overall structure and evolution of

The "Big Bang" refers to the

When we speak of time dilation,we mean that time

Suppose at the surface of the Earth a person can do 20 pushups.In a spaceship far away from any gravitational influence,accelerating at g,the same person could do

It currently appears that within this universe we have mostly

Eternal Inflation refers to

We are actually looking into the past when we look at

Cosmic Inflation refers to

In his special theory of relativity,Einstein stated that the laws of physics are

The Big Bang is regarded as the expansion of

A greater gravitational field causes time to

If the elliptical orbit of Mercury were more eccentric,its precession rate would be

A strong gravitational field

According to cosmic inflation theory,the distribution of galaxies we see today is a consequence of

The Big Rip refers to the

The Big Bang

Cosmic background radiation refers to

The Big Bang occurred

According to dark matter theory,most of the mass of a spiral galaxy is found

In a 1-g gravitational field,in 1 s,a light beam will curve beneath a perfectly straight line by

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

Prologue: The Nature of Science

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