Quote:
Originally Posted by Sune
Gravity = "Energi", Magents = "Energi". So Electricity = Easiest way to "control" (Use) this "Energi".
We are all filled with energy. ...
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Quote:
Originally Posted by McBrayer
Ultimate energy is sun Energy that is solar power...............
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Sune and McBrayer, I think you’d both benefit from a review, or perhaps a first introduction to, some basic terms and concepts of
classical mechanics, because you both appear to be confusing distinct terms with one another.
There are countless good introductory text on the subject, but it’s easy to summarize a few basic terms and concepts that apply to this thread right here:
- Energy is potential work (
)
- Work is magnitude (the amount, ignoring direction) of force multiplied by magnitude of distance (
)
- Force is that which changes the velocity of an object with mass (
)
- (This one you all likely already know from everyday experience) Velocity is the rate of change in distance (
)
- Power is rate of work (
)
So it’s simply wrong to say things like “gravity = energy” – because gravity is force, not energy – or equate “sun energy” with “solar power” – because energy is not power. Mistakes like these – equating related but different quantities – are know as “unit error”.
An important first step in learning physics is learning to carefully avoid unit errors. Once mastered, it’s much easier to understand basic and advanced physics concepts.
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