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How does the amount of energy in the univeres today compare to the amount in the universe one million ago?
It isn't entirely clear whether total energy is conserved in General Relativity, or whether the total energy is even clearly defined in all cases. But in general it is assumed that the total amount of energy doesn't change over time.
What is the difference between usable energy and the total amount energy?
usable energy changes, while total energy does not
Does the total amount of energy change when it changes from one form to another?
The total amount of energy remains constant when it changes from one form to another, according to the law of conservation of energy. Energy can neither be created nor destroyed; it simply changes from one form to another.
Lighting a match changes chemical energy into heat and light The total amount of energy?
The total amount of energy remains constant, but it is transformed from chemical energy in the match head to thermal energy (heat) and electromagnetic energy (light) when the match is lit. This is an example of energy conservation in a closed system.
When energy changes forms energy is always produced?
When energy changes forms, it is not always produced. In fact, energy is conserved in a system, meaning it can neither be created nor destroyed. So, when it changes forms, the total amount of energy remains constant.
Compare the total amount of energy before and after physical and chemical changes?
In physical changes, the total amount of energy before and after remains the same as no new substances are formed. In chemical changes, there may be a difference in the total amount of energy before and after the reaction due to the formation of new substances and the breaking or forming of chemical bonds.
Does the amount of energy change when one energy changes to another?
No. It just gets moved around. The total amount of energy stays the same.
Is it true that the total amount of energy in a closed system never changes?
Yes, that's correct. In a closed system, the total amount of energy remains constant. This principle is known as the law of conservation of energy.
What happens to the total amount of energy when one form of energy changes to one or more forms?
It stays the same.
What is the total amount of energy in the universe never changes called?
You are thinking of the conservation of energy law which states energy can neither ber created or destroyed.
An airplane changes energy into different forms The total amount of energy does not?
The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.The total amount of energy doesn't change. However, some useful energy will be converted into unusable energy.
When one form of energy changes into one or more other form energy what happens to the total amount of energy?
It remains constant
