Semantics question

  • Thread starter cala
  • Start date
  • #1
194
0
1 - energy is the ability to do work
2 - energy doesn't create nor destroy, only transforms

3 - then the ability to do work doesn't create nor destroy, only transforms.

Is it not a definition of perpetual working proccesses?
 
Last edited:

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
41,847
966
No.

Aside from the fact that your statement: "energy doesn't create nor destroy, only transforms" doesn't make sense (it should be "energy is not created or destroyed"), the very first part is wrong: "energy is the ability to do work" should be "DIFFERENCE IN energy is the ability to do work" (in particular, potential energy is defined only to within an additive constant).

If every point in the universe had the same energy (the "heat death" of the universe), then there would exist energy but there would be no abiiity to do work because there would be no difference in energy.
 

Related Threads on Semantics question

  • Last Post
Replies
7
Views
1K
Replies
20
Views
3K
Replies
3
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
6
Views
2K
E
  • Last Post
Replies
17
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
9
Views
2K
Replies
0
Views
2K
Top