The Big Bang Ch. 1 Flashcards
The universe begins as the size of a _____ _____
Single atom
Elemental particles that make up hadrons
Quarks
Led to protons and neutrons
Quarks
Elemental particles that aren’t influenced by strong interactions like quarks
2 types=charged & neutral
Leptons
3 minutes after Big Bang
The universe has grown from the size of an atom to larger than the size of a grapefruit
E=mc^2
Energy ____ according to Einstein
Froze
Energy forms matter into clumps that today we call ______, _______, and ______
Protons, neutrons, and electrons
The early universe was about _________ and ________
75% hydrogen & 25% helium
1st stars and galaxies formed ______________
200-400 million years after Big Bang
_______________ our solar system forms
4.6 billion years ago
What did Hubble observe?
The majority of galaxies are moving away from us and each other
The farther, they faster they move
The universe began ______ years ago
13.7 billion
Noise radiation is _______ across space
Evenly spread
Who confirmed for the entire universe that noise radiation is evenly spread?
COBE satellite
Law of conservation of energy=
Energy remains the constant over time (energy can neither be created or destroyed)
Super large galactic cores that put out more light than whole galaxies
Quasars
Only found 10-15 billion light years away
Found nowhere else
Nothing exists past them
Quasars
Gives us the age of items from the decay of radioactive materials found within the object
Radiometric dating
Found to the older than earth
Moon rocks
The combining of two small nuclei to form a larger nucleus
Nuclear fusion
When two small nuclei are combined, mass is ____ and converted to _____
Lost
Energy
The speed of light is a universal constant of ________
300,000 km/s^2
The furthest stars away are _____ light years away
10-15 billion
Most fusion takes place in a
Central core
