big bang Flashcards
(27 cards)
what was before the big bang
nothing, no time, space, or energy
when did the big bang happen
13.7 billion years ago
there was a rapid expansion of energy called…
inflation
inflation is a…
rapid expansion of energy
how fast is the speed of light
186,000 mps (miles per second)
what were the first two elements
Hydrogen and Helium
what formed after the first 100 million years
atoms
how did the elements heavier then Helium spread throughout the universe
the first gen of stars died and exploded
when did the second gen stars form
after the first 500 million years
what is made up of Carbon
all living things (that are known)
what is at the center of the galaxy and every galaxy
black hole
how many black holes are in the galaxy
millions
where is the biggest black hole, and what happened there
the biggest black hole is at the center of the universe and that’s where the big bang happened
how big is the biggest black hole
as big as 3 million suns
what charge do Protons have
positive charge
what charge do Neutron have
no charge
what charge do electrons have
negative
what is an element
more than one of the same Atom
what is a molecule
more than one of a kind Atom
what is made up of atoms
everything
what are atoms made of
protons, electrons, and neutrons
what is h2o
1 hydrogen 2 oxygen, water
what is at the center of the atom
nucleus, and protons
how was the moon made
a planet the size of Mars crashed into the Earth and the pieces floated around the earth by gravity, which pulled them together, making the Moon
