2. [4pt] Match the type of distance measurement with the objects whose distance
ID: 2305479 • Letter: 2
Question
2. [4pt]
Match the type of distance measurement with the objects
whose distance can be measured using it (If the first corresponds to B, and the next 5 to C, enter BCCCCC):
1) nearby galaxies A. parallax
2) quasars B. type I supernovae
3) nearby stars C. radar
4) galaxy clusters D. redshift (Hubble Law)
5) stars in our galaxy E. spectroscopic parallax
6) the Sun F. variable stars
5. [4pt]
According to the Big Bang Theory, order from earliest to latest, the sequence of events that are thought to have taken place at the beginning of the Universe. If statement A is first, B is second, etc. then enter ABCDEF.
A) Inflation occurs.
B) Hydrogen and Helium are synthesized.
C) Most carbon and oxygen in the Universe is produced.
D) Symmetry of the four forces is broken and gravity becomes a separate force.
E) The universe becomes transparent releaseing the photons of the Cosmic Microwave Background.
F) Protons and anti-protons form.
Explanation / Answer
Question 2) Answer- FBADEC
Radar is best way to measure distance of Sun. Nearby stars distance can be mesure by Parallax methold. Distance of stars in our galaxy which are far from us can be measured by spectroscopic parallax. Nearby galaxies distances can be measured by variable stars and farther distances measured by supernova or Hubble's Law.
Question 5) Answer- AFBEDC
The order of event older to newer is following
Inflation occurs.
Protons and anti-protons form.
Hydrogen and Helium are synthesized.
The universe becomes transparent releaseing the photons of the Cosmic Microwave Background.
Symmetry of the four forces is broken and gravity becomes a separate force.
Most carbon and oxygen in the Universe is produced.
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