the big bang (physical science)
what is name of OUR galaxy
the milky way
what is 3 pieces of evidence for the big bang
1.) Expanding Universe 2.) cmbr (cosmic microwave background radiation) 3.) univserse composition
give a detailed explanation of the 3 biggest pieces of evidence for the bid ban=d
1.) expanding universe- galaxies are moving away from us (redshift), implies that there is a starting point 2.) cmbr- a microwave telescope reveals an evenly distribution of radiation throughout space 3.)universe composition- we have an abundance of light elements in our universe. If the simplest elements formed first, they should exist in larger quantities than the heavier elements
how old is the universe estimated
13.7 billion years old
what decade was hubble's discovery that the universe is expanding
1920's to be specific, 1929
when did our sun form
4.5 billion years ago
a galaxy that is moving toward the earth will show...
a blue shift in the spectrum
what does the big bang theory say
all the matter in the universe exploded from a tiny, dense point
what is one galaxy that is blueshifting
andromeda
what does cosmic mean
anything is outer space
which elements can be created by a star
anything up to 26, up to iron. anything above is created by a supernova
what is difference between astronomy and astrology
astronomy- the study of space and celestial bodies astrology- space
what is one galaxy that is redshifting
bernards/bears/ sr-5
what color is high frequency
blue/ purple
how was gold, silver and platinum created
by merging neutron stars
what does cmbr stand for
cosmic microwave background radiation
what is the equation for density
d=m/v
what albert einsteins famous equation
e=mc^2
who observed galaxies moving away form us
edwin hubble
what were the conditions of the early universe
hot and dense plasma
what 3 elements were created at the moment of the big bang
hydrogen, helium and lithium
what cmbr important
it tells us that matter starting for a single point sand is evidence for the big bang
what will happen if an object is 0.5 g.
it will float, it is less than 1 g.
what will happen if an object is 1.7 g.
it will sink, it is more then 1 g.
increasing wavelength means...
redshifting
In redshift, the wavelength of light become..
shorter
what is NOT a piece of evidence for the big bang
stars and galaxies are blue shifted
what is event that caused the universe
the big bang
how would you describe hubble's law
the farther away galaxies are, the faster they move
the big bang theory explains...
the origins of the universe
