- #36
PeterO
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Chestermiller said:Then how do you account for our approach in thermodynamics, where it is extremely relevant (and automatically gives you the correct answer)?
The sign indicates what sort of change you will be having (increase or decrease), and the (unsigned) Work tells you by how much, but the work itself is still a scalar.
Imagining the work as positive and negative makes for simplicity in keeping track of energy in thermodynamics, but work itself is still a scalar.