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Robert P
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If someone were to talk about "a non-physical energy source" would you consider that a contradiction in terms?
It involves a discussion related to the creation of the universe - "where'd all the 'stuff' come from" - elsewhere, where someone references a "non-physical energy source". My initial reaction is that it's a contradiction in terms but I wanted to make sure I was correct related to terminology and principles.Ibix said:Probably.
Context is important, though. If you can give a reference for what you are talking about without violating PF rules (see the Acceptable Sources section here) on acceptable sources then we can look. If you can't find such a reference then you can safely conclude that it's rubbish.
Any such discussion is really pretty fruitless because the 'answer' cannot be in terms of the Science we use today. That term " non-physical energy source" is actually implying that - i.e. where all the stuff came from cannot be described in 'Physical' terms alone.Robert P said:It involves a discussion related to the creation of the universe - "where'd all the 'stuff' come from" - elsewhere, where someone references a "non-physical energy source". My initial reaction is that it's a contradiction in terms but I wanted to make sure I was correct related to terminology and principles.
Yes, energy is considered a physical quantity because it has measurable properties such as mass and velocity, and it can be observed and interacted with in the physical world.
Energy and matter are two distinct concepts in physics. Matter refers to physical substances that have mass and occupy space, while energy is the ability to do work or cause change. Matter can be converted into energy and vice versa, but they are not interchangeable.
According to the law of conservation of energy, energy cannot be created or destroyed, but it can be transformed from one form to another. This means that the total amount of energy in a closed system remains constant.
No, energy is not a tangible substance. It is a property or characteristic of matter. While we can observe and measure the effects of energy, we cannot physically touch or hold it.
Energy is closely related to motion. In fact, energy is required to cause any change in the motion of an object. The amount of energy an object has depends on its mass and velocity, and this energy can be converted into different forms, such as kinetic energy or potential energy.