我想問下咩叫做chemical energy(化學能)？？
唔該舉D例子。THANK YOU !!
FORM 1 SCIENCE
2011-01-22 1:42 am
回答 (5)
2011-01-22 2:04 am
✔ 最佳答案
Chemical energy 是一些化學的能量，例如food和fuels就有chemicalenergy.
當一個人吃完飯，就會有力量去做一些動作。
例如：拍手
拍手這個動作就把chemical energy (food) 變成kinetic energy (拍手) 再變成
sound energy (拍手的聲音)
再舉例：綠葉吸取陽光製造食物
就是葉子把 light energy (陽光) 變成 chemical energy (food)
總括來說，chemical energy 就多數用成一些能夠發放力量的能，所以才稱化學能。
希望幫到你^^
參考: myself & 教科書
2011-01-22 4:33 am
chemical energy =(化學能)
=>means something can be 消化
Eg.
1)Food povides the chemical energy we need.
2)Fuels=(go into the car)=coal,petrol.....
***When they are buuuurnt ,the chemical energy they contain is charges to other forms of energy!!
=>means something can be 消化
Eg.
1)Food povides the chemical energy we need.
2)Fuels=(go into the car)=coal,petrol.....
***When they are buuuurnt ,the chemical energy they contain is charges to other forms of energy!!
2011-01-22 1:59 am
chemical energy ;
Food contains chemical energy . therefore we can get the energy we need from our breakfast.
fuel ; coal(煤) and petrol (汽油)also contian chemical energy
Food contains chemical energy . therefore we can get the energy we need from our breakfast.
fuel ; coal(煤) and petrol (汽油)also contian chemical energy
參考: BOOK ＡＮＤ ＭＥ
2011-01-22 1:52 am
一粒電已經係化學能
例子:
食物
化學能唔可以直接使用,一定要由能量轉換既過程先可以用
例子:
食物->熱能->動能
電->動能
例子:
食物
化學能唔可以直接使用,一定要由能量轉換既過程先可以用
例子:
食物->熱能->動能
電->動能
收錄日期: 2021-04-13 17:47:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110121000051KK00652