0
The density of what? Any metal, liquid, etc. will have the same density since density depends on mass and volume of the sample (not volume of the universe).
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is a universe that expands and comes back together repeatedly?
a closed universe.
Does carbon increase in density as universe ages?
Some types of carbon increase in density as the universe ages. Many are unstable and may increase or decrease over time.
What theory proposes that the universe does not change with time?
The steady-state universe theory
Why is Edwin hubble famous?
Edwin Hubble proved that there are other galaxies spread throughout the universe, and that these galaxies move away from each other as the universe expands. He further found that the galaxies in the outermost areas of the universe move faster that those nearer the middle, a feature in his Hubble's Law.
What are the differences between the steadystate model of the universe and the big bang model?
The steady state model assumes that new matter is created at the universe expands, the big bang theory states that no new matter is ever created, but only changes form.
Dark energy seems to be accelerating the expansion of the universe causing what?
That means that the Universe expands faster and faster. It causes the Universe to grow, and the general density of matter in the Universe to decrease over time.
How does the density of water change as it expands?
Since "expansion" in this case refers to the increased spacing between molecules, then the density must decrease.
Does density change when the size of an object changes?
No. A drop of water and a tankerful of it have the same density. But these are two different masses of the same material. If you have, say a piece of metal and heat it up so that it expands, and there is still the same amount of substance, then the density decreases as the substance expands. Water expands as it freezes; that is why ice floats in water.
What is a universe that expands and comes back together repeatedly?
a closed universe.
A universe that expands and comes back together repeatedly?
a closed universe.
Does the density of material change when the material expands?
Ice has expanded when it turned from water into ice. Ice floats. This shows that the density of the ice is less than water.
What happens to an object's density when it heats up and expands?
The density decreases.
How does the temperature of water affect the speed at which an object sinks?
Yes. As water is heated above 4oC it expands. With this change in volume comes a change in density. Less density means less bouyant force on the object in the water.
If the universe expands would the earths gravity decrease?
no
When a helium balloon rises in the air it expands. If the volume of the balloon doubles what happens to the density of the helium inside it?
The density will be 50 % from the initial value.
What model of the origin of the universe believes that the universe expands and contracts in a regular pattern?
it is the oscillating model
Can you change waters density?
The density of liquid water is fairly constant across the range of temperatures. Liquid water is most dense at 4°C. At temperatures below that, water will expand slightly. When water freezes to form ice, it expands. Water vapor (steam) expands when heated.
