PHYSICS 問題

2011-05-10 8:44 pm
what is the meaning of doing work

my book state that doing work can increase the internal energy of a body.

THX

回答 (2)

2011-05-12 5:36 am
✔ 最佳答案
Doing work simply means to transfer some energy (by you) to something(e.g. a wood)

Drilling the wood to make fire is one example of doing work.
參考: me: HKDSE F.5 Physics Student
2011-05-10 9:22 pm
Rubbing hardly on the surface of an object is an example for raising its temperature by "doing work".


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