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19 questions
Which description is considered most accurate regarding what actually happened during the Big Bang?
Two galaxies collided causing an immense explosion as stars crashed into one another
All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.
All matter emerged from a massive black hole at the center of the universe.
Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.
The Big Bang Theory is the most widely accepted theory about the origin of the universe.
true
false
A date that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago.
One hundred thousand
Two hundred and fifty million
Thirteen point seven billion
Ten trillion
Observations of space indicate that most matter in the universe is ___.
hydrogen, helium, and dark matter
gold and plutonium
oxygen and water vapor
carbon
Big Bang theorists believe that there should be energy left over from the Big Bang, and it should be in the form of ___.
low level microwave energy
extreme heat
a swirling vortex
visible light
What instrument has allowed us to look deep into space to observe things far away that give us hints to the past?
The Hubble telescope
The Eiffel Tower
Binkley's barometer
The Smith Space Balloon
Galaxies that are REDSHIFTED are:
actually BLUE
really NEAR earth
invisible or not visible
moving AWAY from us.
If something that makes light is moving AWAY from you, it spreads the wavelengths of light out. This application of the Doppler effect is known as ___.
blue shift
green shift
red shift
black shift
Most distant galaxies show a RED SHIFT. This is considered EVIDENCE that the universe is ___.
getting cooler
expanding
condensing into a small point
swirling around
A galaxy showing BLUE SHIFT is ___.
very cold
moving TOWARDS OR TO us
dying
about to supernova
The CMB (Cosmic Background Radiation) is:
the remaining energy from the big bang.
incredibly cool.
a cloud of light
only located in certain places in the universe.
Ever since the universe began, the universe has been
expanding
contracting
stays the same size
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