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10Gravity plays a major role in determining the future of the universe.
Density is the ratio of volume to mass.
In an open universe, expansion continues forever.
In a flat universe, expansion stops eventually.
In a closed universe, galaxies move closer again.
Big Crunch occurs in an open universe.
Critical density is needed to stop expansion.
If density is less than critical density, the universe will collapse.
The universe may have a life cycle like a star.
Gravity decreases as distance increases.
Percentage: 0%
Under what condition can an open universe be hypothesized?
The main factor determining the future of the universe is:
What is the ratio of mass to volume called?
If the average density is less than critical density, the universe is:
If average density equals critical density, the universe becomes:
Big Crunch occurs in which type of universe?
In an open universe, galaxies will:
Critical density is the density required to:
If gravity remains non-zero after velocity becomes zero, the universe will:
The collapse of the universe into a single point is called:
The future of the universe mainly depends on ______.
The ratio of mass to volume is called ______.
The density required to stop the expansion of the universe is called ______ density.
If average density is less than critical density, the universe is ______.
If average density equals critical density, the universe is ______.
If average density is greater than critical density, the universe is ______.
The collapse of the universe into a single point is called the ______ Crunch.
In an open universe, galaxies move away ______.
In a flat universe, expansion gradually ______.
In a closed universe, galaxies will start to ______ closer again.