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