Absolute Zero

• state of matter that consists of charged particles, super hot and dense
• states all matter & energy in the universe was compressed into an extremely small volume, then expanded
• negative 273 degrees Celsius; temp. at which all particle motion stops
• galaxies are moving away at a speed that is proportional to their distance
• massless particles of electromagnetic radiation, light

Big Bang Theory

• state of matter that consists of charged particles, super hot and dense
• states all matter & energy in the universe was compressed into an extremely small volume, then expanded
• negative 273 degrees Celsius; temp. at which all particle motion stops
• galaxies are moving away at a speed that is proportional to their distance
• massless particles of electromagnetic radiation, light

Hubble's Law

• state of matter that consists of charged particles, super hot and dense
• states all matter & energy in the universe was compressed into an extremely small volume, then expanded
• negative 273 degrees Celsius; temp. at which all particle motion stops
• galaxies are moving away at a speed that is proportional to their distance
• massless particles of electromagnetic radiation, light

Photons

• state of matter that consists of charged particles, super hot and dense
• states all matter & energy in the universe was compressed into an extremely small volume, then expanded
• negative 273 degrees Celsius; temp. at which all particle motion stops
• galaxies are moving away at a speed that is proportional to their distance
• massless particles of electromagnetic radiation, light

Plasma

• state of matter that consists of charged particles, super hot and dense
• states all matter & energy in the universe was compressed into an extremely small volume, then expanded
• negative 273 degrees Celsius; temp. at which all particle motion stops
• galaxies are moving away at a speed that is proportional to their distance
• massless particles of electromagnetic radiation, light

The age of the universe is

• 13.7 billion years
• 5 billion years
• 1 billion years
• 15 million years

An increase in wavelength and a decrease in frequency of a wave would indicate

• red shift spectra of galaxies
• blue shift spectra of galaxies
• the existence of black holes
• the existence of giant stars

Cosmic background radiation confirms that the temperature of the universe

• was once very hot and then cooled down over time
• was once very cold and heated up over time
• has stayed the same
• changes every billion years

The temperature of cosmic background radiation is

• about absolute zero
• 100 degrees warmer than absolute zero
• colder than absolute zero
• above 3000 degrees Celsius

If we observed blue shift in the spectra of galaxies, this would tell us that

• galaxies are moving closer to us
• galaxies are moving away from us
• galaxies are at a constant distance away from us