big bang Flashcards

1
Q

what was before the big bang

A

nothing, no time, space, or energy

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2
Q

when did the big bang happen

A

13.7 billion years ago

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3
Q

there was a rapid expansion of energy called…

A

inflation

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4
Q

inflation is a…

A

rapid expansion of energy

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5
Q

how fast is the speed of light

A

186,000 mps (miles per second)

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6
Q

what were the first two elements

A

Hydrogen and Helium

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7
Q

what formed after the first 100 million years

A

atoms

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8
Q

how did the elements heavier then Helium spread throughout the universe

A

the first gen of stars died and exploded

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9
Q

when did the second gen stars form

A

after the first 500 million years

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10
Q

what is made up of Carbon

A

all living things (that are known)

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11
Q

what is at the center of the galaxy and every galaxy

A

black hole

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12
Q

how many black holes are in the galaxy

A

millions

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13
Q

where is the biggest black hole, and what happened there

A

the biggest black hole is at the center of the universe and that’s where the big bang happened

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14
Q

how big is the biggest black hole

A

as big as 3 million suns

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15
Q

what charge do Protons have

A

positive charge

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16
Q

what charge do Neutron have

A

no charge

17
Q

what charge do electrons have

A

negative

18
Q

what is an element

A

more than one of the same Atom

19
Q

what is a molecule

A

more than one of a kind Atom

20
Q

what is made up of atoms

A

everything

21
Q

what are atoms made of

A

protons, electrons, and neutrons

22
Q

what is h2o

A

1 hydrogen 2 oxygen, water

23
Q

what is at the center of the atom

A

nucleus, and protons

24
Q

how was the moon made

A

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

25
Q

when was the large continent

A

250 million years ago

26
Q

what was the name of the large continent

A

Pangea

27
Q
A