All Questions
4
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Why kinetic energy is called kinetic energy and not potential even though it has a potential to do work?
I lift a block of mass $m$ by a height $h$ in gravitational field. I have done a work of $mgh$ on the block. This energy is stored in the block when it is at height $h$. At height $h$, the block has ...
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Is it, in general, better to speak of potential energy density or of energy density? [closed]
I read in this article:
Antimatter
And here we are: at the very end of the feasibility spectrum into the fantastic. Antimatter is made of antiparticles, which have the same mass as particles ...
4
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Can magnitude be negative?
My teacher told that magnitude is the positive value of that quantity or the modulus of that quantity.
he also told that vector quantities have both magnitude and direction and scalar quantities have ...
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Terminology question about energy
I'm looking for the appropriate term to use for what gets "used up" as potential energy is converted to heat and work. For example, some of the the energy in solar radiation is converted by ...
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