回答方式: xxx energy ----> xxx energy
PS:Please answer me ,thx!
更新1:
回答方式:xxx energy → xxx energy
F.1 Science (energy change)
2009-12-03 5:52 am
Please tell me the energy changes of a hydro-electric power and a steam engine model.
回答方式: xxx energy ----> xxx energy
PS:Please answer me ,thx!
回答方式: xxx energy ----> xxx energy
PS:Please answer me ,thx!
回答 (2)
2009-12-03 6:48 am
✔ 最佳答案
Hydroelectric power:kinetic energy of water ---> kinetic energy of rotation of turbine blades ---> kinetic energy of rotor of generator ----> electrical power
Steam engine:
Chemical energy ---> heat energy ---> internal energy of water
---> internal energy of steam ---> mechanical energy of engine
2009-12-06 6:09 am
Steam engine:
Chemical energy > heat energy > internal energy of water > internal energy of steam > mechanical energy of engine
Hydroelectric power:
kinetic energy of water > kinetic energy of rotation of turbine blades > kinetic energy of rotor of generator > electrical energy
~END~
Chemical energy > heat energy > internal energy of water > internal energy of steam > mechanical energy of engine
Hydroelectric power:
kinetic energy of water > kinetic energy of rotation of turbine blades > kinetic energy of rotor of generator > electrical energy
~END~
收錄日期: 2021-04-19 20:45:59
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https://hk.answers.yahoo.com/question/index?qid=20091202000051KK03408