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Obviously no new energy is created - the Law of Conservation of Energy is still valid. What happens is that potential energy is converted into some other kind of energy, especially heat.
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Which two processes can generate energy to help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction. I'm cheating on my astronomy homework too :)
Which two energy sources can help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction
When is gravitational contraction an important energy generation mechanism for the Sun?
It was important when the Sun was forming a shrinking interstellar cloud of gas.
The energy of position such as a rock on a hill is what energy?
Gravitational energy Potential energy
Example for when gravitational potential energy is useful?
You lift a beer can a foot off the table, thus imparting gravitational potential energy to each preciousgolden drop of liquid in the can. You then tilt the can, positioning its orifice directly above the waiting stein.The liquid gives up its gravitational potential energy while falling from the can into the glass below.Upon impact with the glass, the gravitational potential energy has become kinetic energy, which is usedto generate the bountiful and luxurious head.
Does Uranus continues to generate internal heat through gravitational contraction?
False
Which two processes can generate energy to help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction. I'm cheating on my astronomy homework too :)
Why do we need gravitational energy?
Gravitational potential energy stored in the water reserved in a dam becomes useful to generate electricity.
How is heat related to expansion and contraction?
All energy is transferable. When a body contracts, gravitational potential energy is converted into both kinetic energy and thermal energy. Heat is released by contraction. Conversely, heat is used for expansion.
How did gravitational contraction affect earth?
Gravitational contraction raised the temperature of Earth early in it's formation.
Which two energy sources can help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction
When is gravitational contraction an important energy generation mechanism for the Sun?
It was important when the Sun was forming a shrinking interstellar cloud of gas.
What is a Kelvin-Helmholtz contraction?
Kelvin-Helmholtz contraction is a contraction of a star once it is formed and before it is hot enough to ignite its hydrogen. The contraction converts gravitational potential energy into heat, some of which is radiated, with the remainder used to raise the internal temperature of the star.
How do muscles generate heat?
When your muscles use energy to power muscle contraction 3 quarters turns into heat.
The energy of position such as a rock on a hill is what energy?
Gravitational energy Potential energy
Example for when gravitational potential energy is useful?
You lift a beer can a foot off the table, thus imparting gravitational potential energy to each preciousgolden drop of liquid in the can. You then tilt the can, positioning its orifice directly above the waiting stein.The liquid gives up its gravitational potential energy while falling from the can into the glass below.Upon impact with the glass, the gravitational potential energy has become kinetic energy, which is usedto generate the bountiful and luxurious head.
Is gravitational energy kinetic?
Gravitational energy is the potential energyassociated with the gravitational field.
