Quiz 4 Flashcards
What kind of measurement would not tell us the mass of a cluster of galaxies
A measure of the total mass of its stars
True or false: The inflationary stage of rapid expansion helps to explain the uniformity of regions separated by greater the light travel time for the age of the universe
True
Most of the mass of the universe consists of ?
Dark matter
Dark matter would have started clumping long before the atomic era because
It was unaffected by radiation so that prevented matter from clumping
In studying the large scale distribution on galaxies we find that
2 of the other answers are correct
Light can be converted into mass by the process of?
Particle / antiparticle production
What’s not true about the Drake equation
It constitutes an answer to olbers paradox
Leading theory on dark matter is that
It’s made of weakly interacting massive particles or wimps
Satellite of Saturn may harbor life as its nitrogen and methane atmosphere close to that or primordial earth
Titan
Which of these does not constitute evidence for Big Bang theory
Existence of astronomical candles
In the 70s soil samples from Mars were determined to be compatible with the presence of life by blank out of 4 experiments
3
Hubbles law states that a galaxy recessional velocity depends on its
Distance
Critical evidence for cosmic acceleration comes from
Type 1 supernova
