Structure Of The Universe And The Big Bang Question Preview (ID: 56731)

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Which graph best shows the relationship of the size of the universe to the temperature indicated by the cosmic microwave background radiation?

a) A

b) B

c) C

d) D

Scientists infer that the universe began approximately

a) 1.0 billion years ago

b) 3.3 billion years ago

c) 8.2 billion years ago

d) 13.7 billion years ago

Which statement best describes galaxies?

a) They are similar in size to the solar system.

b) They contain only one star but hundreds of planets.

c) They may contain a few hundred stars in a space slightly larger than the solar system.

d) They may contain billions of stars in a space much larger than our solar system.

According to this table, the average temperature of the universe since stage 3 has

a) decreased, only

b) increased, only

c) remained the same

d) increased, then decreased

What is the most appropriate title for this table?

a) The Big Bang Theory

b) The Theory of Plate Tectonics

c) The Law of Superposition

d) The Laws of Planetary Motion

Between which two stages did our solar system form?

a) 1 and 3

b) 3 and 5

c) 6 and 7

d) 7 and 8

How soon did protons and neutrons form after the beginning of the universe?

a) 10^-43 second

b) 10^-32 second

c) 10^-6 second

d) 13.7 billion years

The major evidence supporting the Big Bang theory is

a) observations of supernova explosions.

b) the discovery of black holes.

c) observations that the Doppler red shift becomes greater as we look at more distant galaxies.

d) observations that most galaxies are rotating

At approximately which position is Earth's solar system located?

a) A

b) B

c) C

d) D

Cosmic background radiation provides direct evidence for the origin of

a) the universe

b) our solar system

c) Earth’s ozone layer

d) Earth’s earliest atmosphere

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