CH28
According to calculations made by modern astronomers, the age of the universe is close to?
14 billion years
In a 1G field in 1 S a light beam will curve beneath a perfectly straight line by
About 4.9 m
We are actually looking into the past when we look at
Actually, both of these
Dark energy
All of the above
The theory of dark every tells us that
All of the above
General relativity is most conceded with
All of these
It currently appears that within this universe we have mostly
Dark energy
When we speak of time dilation, we mean that time
stretches with speed.
How did Mr. Hubble calculate the age of the universe?
by measuring the rate of expansion of the universe
Dark matter is matter that
cannot be seen or felt, but can be measured through its gravitational effects
"Local observations made in an accelerated frame of reference cannot be distinguished from observations made in a gravitational field" is known as the principle of
equivalence
Edwin Hubble discovered that the farther away a galaxy is the ?
faster it is receding from us
Dark energy bends the curvature of spacetime ?
in the opposite manner of gravity
The formation of more protons than neutrons (at about a 7:1. ratio) was favored in the early universe because
it takes more energy to create a neutron from a proton than a proton from a neutron
Heat death refers to the universe ?
reaching the lowest energy state possible, which will mean the greatest level of entropy
A person on the ground floor of a skyscraper ages
slower than a person on the top floor
According to inflation theory, parallel lines appear to remain parallel because
the universe is so unbelievably large
Comic inflation refers to ?
An extremely rapid expansion of the early universe that occurred in an extremely brief period of time
The bing bang occurred ?
At the tip of your nose
The "Red shift " of a galaxy refers to the rate
At which is receding
Light bends when it
Both of these
The quantity that undergoes a red shift is ?
Both of these
Space and time are ?
Bound together
The currently accepted reasoning for why the cosmic background radiation is so uniform in temperature is because ?
It's uniformity was achieved in the moments before cosmic inflation
Cepheids are types of stars that regularly change how bright they are over a period of a few
Days
Our local group is situated ?
Directly between two major super clusters
According to Einstein gravity is not the force exerted by one object on another but rather the
Effect we witness
Compared to a clock at the bottom of a very tall skyscraper, a clock at the top of this skyscraper will appear to run
Faster
The modern theory of dark energy arises from observation showing that
Galaxies are accelerating away from each other
The universe as a whole is ?
Has yet to be determined although most astrophysical data points to a flat universe
As a blinking light source approaches you at an increasing speed, the frequency of the flashes
Increases
The big gap refers to the ?
Influence of dark enthusiasts causing all matter to become completely ripped apart
Einstein theories tells us that the speed of light ?
Is constant in all frames of reference
The Big Bang ?
Marked the beginning of Space and time
Space time is curved by ?
Mass
In a flat universe parallel lines ?
Never converge
Where is dark Matter found in the periodic table
No where at all
The bing bang refers to the
Point in time in which the known and perhaps knowable universe came into being
A greater G field causes time to ?
Slow down
A greater gravitational field causes time to
Slow down
A clock on the surface of a shrinking star will run progressively
Slower
A strong gravitational field ?
Slows a clock ⏰
The Big Bang is regarded as the expansion of
Space
According to Alan guru magnetic monopoles are not observed in our universe because ?
Space expanded so much that they are exceedingly rare
Relatively is the
Study of how space energy and mass are related to time
Cosmological redshift refers to
The expansion of space itself
Eternal inflation refers to ?
The possibility that our universe is only a patch of greeter into and the process of etc
Cosmology is the study of the overall structure and evolution of ?
The universe
Cosmic background radiation refers to
Uniformly distributed residual radiation that resulted from the Big Bang
A four dimensional image of a coffee table Is depicted in a
Video
The difference between light waves approaching and light waves receding is ?
When approaching light waves have higher frequency when receding their frequency is lower
Precession is ?
When the elliptical orbits of planets slip forests with each revolution
If you told travel at high speed then compared with your friends who " stay at home 🏡 " you are ?
Younger
If the orbit of Mercury were perfectly circular, its rate of precession would be
Zero
Distant galaxies are
accelerating away from each other
What Einstein discovered about space and time is that they
are parts of one whole
If dark matter were to be found on this planet it would likely be ?
at the center of Earth's core
