Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe. [Clarification Statement: Emphasis is on the astronomical evidence of the redshift of light from galaxies as an indication that the universe is currently expanding, the cosmic microwave background as the remnant radiation from the Big Bang, and the observed composition of ordinary matter of the universe, primarily found in stars and interstellar gases (from the spectra of electromagnetic radiation from stars), which matches that predicted by the Big Bang theory (3/4 hydrogen and 1/4 helium).]
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Q 1/8
Score 0
The change in light waves to longer wavelengths as objects in space move away from the observer. Evidence for expanding universe. Related to Doppler effect
30
red shift
Q 2/8
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The opposite of redshift, showing objects moving closer.
30
Blue shift
8 questions
Q.
The change in light waves to longer wavelengths as objects in space move away from the observer. Evidence for expanding universe. Related to Doppler effect
1
30 sec
HS-ESS1-2
Q.
The opposite of redshift, showing objects moving closer.
2
30 sec
HS-ESS1-2
Q.
The change in wave frequency due to relative motion, explaining redshift/blue shift.
3
30 sec
HS-ESS1-2
Q.
The observation that galaxies are receding from us at speeds proportional to their distance.
4
30 sec
HS-ESS1-2
Q.
A mysterious force accelerating the universe's expansion.
5
30 sec
HS-ESS1-2
Q.
Faint, uniform microwave radiation, the cooled afterglow of the Big Bang.
6
30 sec
HS-ESS1-2
Q.
The leading model for the universe's origin from a hot, dense state.