人教版初二下学期物理有什么特点 新版的八年级下学期物理（人教版）讲的是哪些内容
\u4eba\u6559\u7248\u521d\u4e8c\u4e0b\u5b66\u671f\u7269\u7406\u671f\u672b\u590d\u4e60\u63a8\u8350\u7f51\u5740:http://docs.google.com/Doc?id=dm66g98_48g4ptjcd7
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\u4e00\u3001\u7535\u538b
1\u3001\u7535\u6e90\u7684\u4f5c\u7528\u662f\u7ed9\u7535\u8def\u4e24\u7aef\u63d0\u4f9b\u7535\u538b\uff1b\u7535\u538b\u662f\u7535\u8def\u4e2d\u4ea7\u751f\u7535\u6d41\u7684\u539f\u56e0\u3002\u7535\u8def\u4e2d\u6709\u7535\u6d41\uff0c\u5c31\u4e00\u5b9a\u6709\u7535\u538b\uff1b\u7535\u8def\u4e2d\u6709\u7535\u538b\uff0c\u5374\u4e0d\u4e00\u5b9a\u6709\u7535\u6d41\uff0c\u56e0\u4e3a\u8fd8\u8981\u770b\u7535\u8def\u662f\u5426\u662f\u901a\u8def\u3002
2\u3001\u7535\u538b\u7528\u5b57\u6bcdU\u8868\u793a\uff0c\u5355\u4f4d\u662f\u4f0f\u7279\uff0c\u7b80\u79f0\u4f0f\uff0c\u7b26\u53f7\u662fV\u3002\u5e38\u7528\u5355\u4f4d\u6709\u5343\u4f0f\uff08KV\uff0c1KV = 103V\uff09\u548c\u6beb\u4f0f\uff08mV\uff0c1mV = 10-3V\uff09\u3002\u5bb6\u5ead\u7167\u660e\u7535\u8def\u7684\u7535\u538b\u662f220V\uff1b\u4e00\u8282\u5e72\u6c60\u7684\u7535\u538b\u662f1.5V\uff1b\u5bf9\u4eba\u4f53\u5b89\u5168\u7684\u7535\u538b\u4e0d\u9ad8\u4e8e36V\u3002
3\u3001\u7535\u538b\u8868\u7684\u4f7f\u7528\uff1aA\u3001\u7535\u538b\u8868\u5e94\u8be5\u4e0e\u88ab\u6d4b\u7535\u8def\u5e76\u8054\uff1b\u5f53\u7535\u538b\u8868\u76f4\u63a5\u4e0e\u7535\u6e90\u5e76\u8054\u65f6\uff0c\u56e0\u4e3a\u7535\u538b\u8868\u5185\u963b\u65e0\u7a77\u5927\uff0c\u6240\u4ee5\u7535\u8def\u4e0d\u4f1a\u77ed\u8def\uff0c\u6240\u6d4b\u7535\u538b\u5c31\u662f\u7535\u6e90\u7535\u538b\u3002B\u3001\u7535\u538b\u8868\u7684\u6b63\u63a5\u7ebf\u67f1\u63a5\u7535\u6e90\u6b63\u7ea7\uff0c\u8d1f\u63a5\u7ebf\u67f1\u63a5\u7535\u6e90\u8d1f\u6781\u5ea6\u3002C\u3001\u6839\u636e\u88ab\u6d4b\u7535\u8def\u7684\u4e0d\u540c\uff0c\u53ef\u4ee5\u9009\u62e9\u201c0 ~ 3V\u201d\u548c\u201c0 ~ 15V\u201d\u4e24\u4e2a\u91cf\u7a0b\u3002
4\u3001\u7535\u538b\u8868\u7684\u8bfb\u6570\u65b9\u6cd5\uff1aA\u3001\u770b\u63a5\u7ebf\u67f1\u786e\u5b9a\u91cf\u7a0b\u3002B\u3001\u770b\u5206\u5ea6\u503c\uff08\u6bcf\u4e00\u5c0f\u683c\u4ee3\u8868\u591a\u5c11\u4f0f\uff09\u3002C\u3001\u770b\u6307\u9488\u504f\u8f6c\u4e86\u591a\u5c11\u683c\uff0c\u5373\u6709\u591a\u5c11\u4f0f\u3002
5\u3001\u7535\u6c60\u4e32\u8054\uff0c\u603b\u7535\u538b\u4e3a\u5404\u7535\u6c60\u7684\u7535\u538b\u4e4b\u548c\uff1b\u76f8\u540c\u7535\u6c60\u5173\u8054\uff0c\u603b\u7535\u538b\u7b49\u4e8e\u5176\u4e2d\u4e00\u652f\u7535\u6c60\u7684\u7535\u538b\u3002
\u4e8c\u3001\u63a2\u7a76\u4e32\u8054\u7535\u8def\u4e2d\u7535\u538b\u7684\u89c4\u5f8b
1\u3001\u5b9e\u9a8c\u6b65\u9aa4\uff1aA\u3001\u63d0\u51fa\u95ee\u9898\uff1bB\u3001\u731c\u60f3\u6216\u5047\u8bbe\uff1bC\u3001\u8bbe\u8ba1\u5b9e\u9a8c\uff1bD\u3001\u8fdb\u884c\u5b9e\u9a8c\uff1bD\u3001\u5206\u6790\u548c\u8bba\u8bc1\u3001E\u3001\u8bc4\u4f30\uff1bF\u3001\u4ea4\u6d41\uff08\u5927\u4f53\u5185\u5bb9\u76f8\u540c\u5373\u53ef\uff0c\u6709\u4e9b\u6b65\u9aa4\u53ef\u7701\u7565\uff09
2\u3001\u5728\u4e32\u8054\u7535\u8def\u4e2d\uff0c\u603b\u7535\u538b\u7b49\u4e8e\u5404\u7528\u7535\u5668\u7684\u7535\u538b\u4e4b\u548c\u3002
\u4e09\u3001\u7535\u963b
1\u3001\u5bb9\u6613\u5bfc\u7535\u7684\u7269\u4f53\u53eb\u5bfc\u4f53\uff0c\u5982\u94c5\u7b14\u82af\u3001\u91d1\u5c5e\u3001\u4eba\u4f53\u3001\u5927\u5730\u7b49\uff1b\u4e0d\u5bb9\u6613\u5bfc\u7535\u7684\u7269\u4f53\u53eb\u7edd\u7f18\u4f53\uff0c\u5982\u6a61\u80f6\u3001\u5851\u6599\u3001\u9676\u74f7\u7b49\u3002\u5bfc\u7535\u80fd\u529b\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\u7684\u53eb\u534a\u5bfc\u4f53\uff0c\u5982\u7845\u91d1\u5c5e\u7b49\u3002
2\u3001\u5bfc\u4f53\u5bf9\u7535\u6d41\u7684\u963b\u788d\u4f5c\u7528\u53eb\u7535\u963b\uff0c\u7528R\u8868\u793a\uff0c\u5355\u4f4d\u662f\u6b27\u59c6\uff0c\u7b80\u79f0\u6b27\uff0c\u7b26\u53f7\u662f\u03a9\u3002\u5e38\u7528\u5355\u4f4d\u6709\u5343\u6b27\uff08K\u03a9\uff0c1K\u03a9 = 103\u03a9\uff09\u548c\u5146\u6b27\uff08M\u03a9\uff0c1M\u03a9 = 106\u03a9\uff09\uff0c\u5b83\u5728\u7535\u8def\u56fe\u4e2d\u7684\u7b26\u53f7\u4e3a \u3002
3\u3001\u5f71\u54cd\u7535\u963b\u5927\u5c0f\u7684\u56e0\u7d20\u6709\uff1aA\u3001\u6750\u6599\uff1bB\u3001\u957f\u5ea6\uff1bC\u3001\u6a2a\u622a\u9762\u79ef\uff1bD\u3001\u6e29\u5ea6\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u67d0\u4e00\u5bfc\u4f53\u88ab\u5236\u9020\u51fa\u6765\u4ee5\u540e\uff0c\u5176\u7535\u963b\u9664\u4e86\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u6709\u4e00\u70b9\u6539\u53d8\u4e4b\u5916\uff0c\u6211\u4eec\u5c31\u8fd1\u4f3c\u5730\u8ba4\u4e3a\u5176\u7535\u963b\u4e0d\u53d8\u4e86\uff0c\u5b83\u4e5f\u4e0d\u4f1a\u968f\u7740\u7535\u538b\u3001\u7535\u6d41\u7684\u53d8\u5316\u800c\u53d8\u5316\u3002
4\u3001\u67d0\u4e9b\u5bfc\u4f53\u5728\u6e29\u5ea6\u4e0b\u964d\u5230\u67d0\u4e00\u6e29\u5ea6\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u5176\u7535\u963b\u4e3a0\u7684\u60c5\u51b5\uff0c\u8fd9\u5c31\u662f\u8d85\u5bfc\u73b0\u8c61\uff0c\u8fd9\u65f6\u8fd9\u79cd\u5bfc\u4f53\u5c31\u53eb\u8d85\u5bfc\u4f53\u3002
5\u3001\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u5de5\u4f5c\u539f\u7406\u662f\uff1a\u7535\u963b\u90e8\u5206\u7531\u6d82\u6709\u7edd\u7f18\u5c42\u7684\u7535\u963b\u4e1d\u7ed5\u5728\u7edd\u7f18\u7ba1\u4e0a\uff0c\u901a\u8fc7\u6ed1\u7247\u5728\u4e0a\u9762\u6ed1\u52a8\u4ece\u800c\u6539\u53d8\u63a5\u5165\u7535\u8def\u7684\u7535\u963b\u5927\u5c0f\u3002\u6240\u4ee5\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6b63\u786e\u63a5\u6cd5\u662f\uff1a\u4e00\u4e0a\u4e00\u4e0b\u7684\u63a5\u3002\u5b83\u5728\u7535\u8def\u56fe\u4e2d\u7684\u7b26\u53f7\u662f \u5b83\u5e94\u8be5\u4e0e\u88ab\u6d4b\u7535\u8def\u4e32\u8054\u3002
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1\u3001\u6b27\u59c6\u5b9a\u5f8b\u662f\u7531\u5fb7\u56fd\u7269\u7406\u5b66\u5bb6\u6b27\u59c6\u57281826\u5e74\u901a\u8fc7\u5927\u91cf\u7684\u5b9e\u9a8c\u5f52\u7eb3\u51fa\u6765\u7684\u3002
2\u3001\u6b27\u59c6\u5b9a\u5f8b\uff1a\u5bfc\u4f53\u4e2d\u7684\u7535\u6d41\uff0c\u8ddf\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u8ddf\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u963b\u6210\u53cd\u6bd4\u3002\u516c\u5f0f\u4e3a\uff1aI = U / R \uff0c\u53d8\u5f62\u516c\u5f0f\u6709\uff1aU = I R \uff0c R = U / I
3\u3001\u6b27\u59c6\u5b9a\u5f8b\u4f7f\u7528\u6ce8\u610f\uff1aA\u3001\u5355\u4f4d\u5fc5\u987b\u7edf\u4e00\uff0c\u7535\u6d41\u7528A\uff0c\u7535\u538b\u7528V\uff0c\u7535\u963b\u7528\u03a9\uff1bB\u3001\u4e0d\u80fd\u628a\u8fd9\u4e2a\u516c\u5f0f\u7406\u89e3\u4e3a\uff1a\u7535\u963b\u4e0e\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u4e0e\u7535\u6d41\u6210\u53cd\u6bd4\uff0c\u56e0\u4e3a\u7535\u963b\u5e38\u89c4\u60c5\u51b5\u4e0b\u662f\u4e0d\u53d8\u7684\u3002
4\u3001\u7528\u7535\u5668\u6b63\u5e38\u5de5\u4f5c\u65f6\u7684\u7535\u538b\u53eb\u989d\u5b9a\u7535\u538b\uff1b\u6b63\u5e38\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u53eb\u989d\u5b9a\u7535\u6d41\uff1b\u4f46\u662f\u751f\u6d3b\u4e2d\u5f80\u5f80\u8fbe\u4e0d\u5230\u8fd9\u4e2a\u6807\u51c6\uff0c\u6240\u4ee5\u7528\u7535\u5668\u5b9e\u9645\u5de5\u4f5c\u65f6\u7684\u7535\u538b\u53eb\u5b9e\u9645\u7535\u538b\uff0c\u5b9e\u9645\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u53eb\u5b9e\u9645\u7535\u6d41\u3002
5\u3001\u5f53\u7535\u8def\u51fa\u73b0\u77ed\u8def\u73b0\u8c61\uff08\u7535\u8def\u4e2d\u7535\u6e90\u4e0d\u7ecf\u8fc7\u7528\u7535\u5668\u800c\u76f4\u63a5\u88ab\u63a5\u901a\u7684\u60c5\u51b5\uff09\u65f6\uff0c\u6839\u636eI = U / R \u53ef\u77e5\uff0c\u56e0\u4e3a\u7535\u963bR\u5f88\u5c0f\uff0c\u6240\u4ee5\u7535\u6d41\u4f1a\u5f88\u5927\uff0c\u4ece\u800c\u4f1a\u5bfc\u81f4\u706b\u707e\u3002
\u4e94\u3001\u6d4b\u91cf\u5c0f\u706f\u6ce1\u7684\u7535\u963b
1\u3001\u6839\u636e\u6b27\u59c6\u5b9a\u5f8b\u516c\u5f0f I = U / R \u7684\u53d8\u5f62 R = U / I \u53ef\u77e5\uff0c\u6c42\u51fa\u4e86\u5c0f\u706f\u6ce1\u7684\u7535\u538b\u548c\u7535\u6d41\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u51fa\u5c0f\u706f\u6ce1\u7684\u7535\u963b\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53eb\u505a\u4f0f\u5b89\u6cd5\u3002
2\u3001\u6d4b\u91cf\u65f6\u6ce8\u610f\uff1aA\u3001\u95ed\u5408\u5f00\u5173\u524d\uff0c\u6ed1\u52a8\u53d8\u963b\u5668\u5e94\u8be5\u6ed1\u5230\u7535\u963b\u6700\u5927\u7aef\uff1bB\u3001\u6d4b\u91cf\u7535\u963b\u65f6\uff0c\u5e94\u8be5\u5148\u89c2\u5bdf\u5c0f\u706f\u6ce1\u7684\u989d\u5b9a\u7535\u538b\uff0c\u7136\u540e\u6d4b\u91cf\u65f6\u4f7f\u7528\u7684\u7535\u538b\u5e94\u8be5\u6309\u7167\u4ece\u989d\u5b9a\u7535\u538b\u4f9d\u6b21\u964d\u4f4e\u6d4b\u91cf\u3002C\u3001\u53ef\u4ee5\u5c06\u51e0\u6b21\u6d4b\u91cf\u7684\u7ed3\u679c\u6c42\u5e73\u5747\u503c\uff0c\u4ee5\u51cf\u5c0f\u8bef\u5dee\u3002
3\u3001\u6d4b\u91cf\u8fc7\u7a0b\u4e2d\uff0c\u7535\u538b\u8d8a\u4f4e\uff0c\u5c0f\u706f\u6ce1\u8d8a\u6697\uff0c\u6e29\u5ea6\u8d8a\u4f4e\uff0c\u56e0\u6b64\u7535\u963b\u4f1a\u7565\u5c0f\u4e00\u70b9\u3002
\u516d\u3001\u6b27\u59c6\u5b9a\u5f8b\u548c\u5b89\u5168\u7528\u7535
1\u3001\u5bf9\u4eba\u4f53\u5b89\u5168\u7684\u7535\u538b\u5e94\u8be5\u4e0d\u9ad8\u4e8e36V\uff0c\u56e0\u4e3a\u6839\u6910\u6b27\u59c6\u5b9a\u5f8b I = U / R \u53ef\u77e5\uff0c\u5728\u7535\u963b\u4e0d\u53d8\u7684\u60c5\u51b5\u4e0b\uff0c\u7535\u538b\u8d8a\u9ad8\uff0c\u901a\u8fc7\u4eba\u4f53\u7535\u6d41\u5c31\u4f1a\u8d8a\u5927\uff0c\u6240\u4ee5\u9ad8\u538b\u7535\u5bf9\u4eba\u4f53\u6765\u8bf4\u662f\u975e\u5e38\u5371\u9669\u7684\u3002
2\u3001\u6211\u4eec\u4e0d\u80fd\u7528\u6f6e\u6e7f\u7684\u624b\u53bb\u89e6\u6478\u7535\u5668\uff0c\u56e0\u4e3a\u4eba\u7684\u76ae\u80a4\u6f6e\u6e7f\u65f6\uff0c\u7535\u963b\u4f1a\u53d8\u5c0f\uff0c\u4ece\u800c\u4f1a\u589e\u5927\u89e6\u7535\u7684\u53ef\u80fd\u6027\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u4e0d\u8981\u9760\u8fd1\u9ad8\u8fd1\u5e26\u7535\u4f53\uff0c\u4e0d\u8981\u63a5\u89e6\u4f4e\u538b\u5e26\u7535\u4f53\u3002
3\u3001\u96f7\u7535\u662f\u81ea\u7136\u754c\u4e00\u79cd\u5267\u70c8\u7684\u653e\u7535\u73b0\u8c61\uff0c\u5bf9\u4eba\u6765\u8bf4\u662f\u975e\u5e38\u5371\u9669\u7684\uff0c\u6240\u4ee5\u5728\u6709\u96f7\u7535\u73b0\u8c61\u65f6\uff0c\u4e0d\u8981\u7ad9\u5728\u5927\u6811\u6216\u5176\u5b83\u8f83\u9ad8\u7684\u5bfc\u7535\u7269\u4f53\u4e0b\uff0c\u4e5f\u4e0d\u80fd\u7ad9\u5230\u9ad8\u5904\u3002
4\u3001\u4e3a\u4e86\u9632\u6b62\u96f7\u7535\u5bf9\u4eba\u4eec\u7684\u5371\u5bb3\uff0c\u7f8e\u56fd\u7269\u7406\u5b66\u5bb6\u5bcc\u5170\u514b\u6797\u53d1\u660e\u4e86\u907f\u96f7\u9488\uff0c\u8ba9\u96f7\u7535\u901a\u8fc7\u91d1\u5c5e\u5bfc\u4f53\u8fdb\u5165\u5927\u5730\uff0c\u4ece\u800c\u4fdd\u8bc1\u4eba\u6216\u5efa\u7b51\u7269\u7684\u5b89\u5168\u3002
\u7b2c\u4e03\u7ae0 \u7535\u529f\u7387
\u4e00\u3001\u7535\u80fd
1\u3001\u7535\u80fd\u53ef\u80fd\u540c\u5176\u5b83\u5f62\u5f0f\u7684\u80fd\u91cf\u8f6c\u5316\u800c\u6765\uff0c\u4e5f\u53ef\u4ee5\u8f6c\u5316\u4e3a\u5176\u5b83\u5f62\u5f0f\u7684\u80fd\u91cf\u3002
2\u3001\u7535\u80fd\u7528W\u8868\u793a\uff0c\u5e38\u7528\u5355\u4f4d\u662f\u5343\u74e6\u65f6\uff08KWh\uff09\uff0c\u5728\u7269\u7406\u5b66\u4e2d\u80fd\u91cf\u7684\u901a\u7528\u5355\u4f4d\u662f\u7126\u8033\uff08J\uff09\uff0c\u7b80\u79f0\u7126\u30021KWh = 3.6 106J\u3002
3\u3001\u7535\u80fd\u8868\u662f\u6d4b\u91cf\u4e00\u6bb5\u65f6\u95f4\u5185\u6d88\u8017\u7684\u7535\u80fd\u591a\u5c11\u7684\u4eea\u5668\u3002A\u3001\u201c220V\u201d\u662f\u6307\u8fd9\u4e2a\u7535\u80fd\u8868\u5e94\u8be5\u5728220V\u7684\u7535\u8def\u4e2d\u4f7f\u7528\uff1bB\u3001\u201c10\uff0820\uff09A\u201d\u6307\u8fd9\u4e2a\u7535\u80fd\u8868\u7684\u989d\u5b9a\u7535\u6d41\u4e3a10\u5b89\uff0c\u5728\u77ed\u65f6\u95f4\u5185\u6700\u5927\u7535\u6d41\u4e0d\u8d85\u8fc720\u5b89\uff1bC\u3001\u201c50Hz\u201d\u6307\u8fd9\u4e2a\u7535\u80fd\u8868\u572850\u8d6b\u5179\u7684\u4ea4\u6d41\u7535\u8def\u4e2d\u4f7f\u7528\uff1bD\u3001\u201c600revs/KWh\u201d\u6307\u8fd9\u4e2a\u7535\u80fd\u8868\u7684\u6bcf\u6d88\u8017\u4e00\u5343\u74e6\u65f6\u7684\u7535\u80fd\uff0c\u8f6c\u76d8\u8f6c\u8fc7600\u8f6c\u3002
4\u3001\u7535\u80fd\u8f6c\u5316\u4e3a\u5176\u4ed6\u5f62\u5f0f\u80fd\u7684\u8fc7\u7a0b\u662f\u505a\u529f\u7684\u8fc7\u7a0b\uff0c\u6709\u591a\u5c11\u7535\u80fd\u53d1\u751f\u4e86\u8f6c\u5316\uff0c\u5c31\u8bf4\u7535\u6d41\u505a\u4e86\u591a\u5c11\u529f\u3002\u5b9e\u8d28\u4e0a\uff0c\u7535\u529f\u5c31\u662f\u7535\u80fd\uff0c\u4e5f\u7528W\u8868\u793a\uff0c\u901a\u7528\u5355\u4f4d\u4e5f\u662f\u7126\u8033\uff0c\u5e38\u7528\u5355\u4f4d\u662f\u5343\u74e6\u65f6\u3002
\u4e8c\u3001\u7535\u529f\u7387
1\u3001\u7535\u529f\u7387\u662f\u8868\u793a\u6d88\u8017\u7535\u80fd\u7684\u5feb\u6162\u7684\u7269\u7406\u91cf\uff0c\u7528P\u8868\u793a\uff0c\u5355\u4f4d\u662f\u74e6\u7279\uff0c\u7b80\u79f0\u74e6\uff0c\u7b26\u53f7\u662fW\u3002\u5e38\u7528\u5355\u4f4d\u6709\u5343\u74e6\uff08KW\uff09\u30021KW = 103W 1\u9a6c\u529b = 735\u74e6\u3002\u7535\u529f\u7387\u7684\u5b9a\u4e49\u4e5f\u53ef\u4ee5\u7406\u89e3\u4e3a\uff1a\u7528\u7535\u5668\u57281\u79d2\u5185\u6d88\u8017\u7684\u7535\u80fd\u3002
2\u3001\u7535\u529f\u7387\u4e0e\u7535\u80fd\u3001\u65f6\u95f4\u7684\u5173\u7cfb\uff1a P = W / t \u5728\u4f7f\u7528\u65f6\uff0c\u5355\u4f4d\u8981\u7edf\u4e00\uff0c\u5355\u4f4d\u6709\u4e24\u79cd\u53ef\u7528\uff1a\uff081\uff09\u3001\u7535\u529f\u7387\u7528\u74e6\uff08W\uff09\uff0c\u7535\u80fd\u7528\u7126\u8033\uff08J\uff09\uff0c\u65f6\u95f4\u7528\u79d2\uff08S\uff09\uff1b\uff082\uff09\u3001\u7535\u529f\u7387\u7528\u5343\u74e6\uff08KW\uff09\uff0c\u7535\u80fd\u7528\u5343\u74e6\u65f6\uff08KWh\uff0c\u5ea6\uff09\uff0c\u65f6\u95f4\u7528\u5c0f\u65f6\uff08h\uff09\u3002
3\u30011\u5343\u74e6\u65f6\u662f\u529f\u7387\u4e3a1KW\u7684\u7528\u7535\u5668\u4f7f\u75281h\u6240\u6d88\u8017\u7684\u7535\u80fd\u3002
4\u3001\u7535\u529f\u7387\u4e0e\u7535\u538b\u3001\u7535\u6d41\u7684\u5173\u7cfb\u516c\u5f0f\uff1a P = I U \u5355\u4f4d\uff1a\u7535\u529f\u7387\u7528\u74e6\uff08W\uff09\uff0c\u7535\u6d41\u7528\u5b89\uff08A\uff09\uff0c\u7535\u538b\u7528\u4f0f\uff08V\uff09\u3002
5\u3001\u7528\u7535\u5668\u5728\u989d\u5b9a\u7535\u538b\u4e0b\u5de5\u4f5c\u65f6\u7684\u7535\u529f\u7387\uff08\u6216\u8005\u8bf4\u7528\u7535\u5668\u6b63\u5e38\u5de5\u4f5c\u65f6\u7684\u7535\u529f\u7387\uff09\uff0c\u53eb\u505a\u989d\u5b9a\u529f\u7387\u3002
\u4e09\u3001\u6d4b\u91cf\u5c0f\u706f\u6ce1\u7684\u7535\u529f\u7387
1\u3001\u6d4b\u91cf\u5c0f\u706f\u6ce1\u7535\u529f\u7387\u7684\u7535\u8def\u56fe\u4e0e\u6d4b\u7535\u963b\u7684\u7535\u8def\u56fe\u4e00\u6837\u3002
2\u3001\u8fdb\u884c\u6d4b\u91cf\u65f6\uff0c\u4e00\u822c\u8981\u5206\u522b\u6d4b\u91cf\u5c0f\u706f\u6ce1\u8fc7\u6697\u3001\u6b63\u5e38\u53d1\u5149\u3001\u8fc7\u4eae\u65f6\u4e09\u6b21\u7684\u7535\u529f\u7387\uff0c\u4f46\u4e0d\u80fd\u7528\u6c42\u5e73\u5747\u503c\u7684\u65b9\u6cd5\u8ba1\u7b97\u7535\u529f\u7387\uff0c\u53ea\u80fd\u7528\u5c0f\u706f\u6ce1\u6b63\u5e38\u53d1\u5149\u65f6\u7684\u7535\u529f\u7387\u3002
\u56db\u3001\u7535\u548c\u70ed
1\u3001\u7535\u6d41\u901a\u8fc7\u5bfc\u4f53\u65f6\u7535\u80fd\u8981\u8f6c\u5316\u6210\u70ed\uff0c\u8fd9\u4e2a\u73b0\u8c61\u53eb\u7535\u6d41\u7684\u70ed\u6548\u5e94\u3002
2\u3001\u6839\u636e\u7535\u529f\u7387\u516c\u5f0f\u548c\u6b27\u59c6\u5b9a\u5f8b\uff0c\u53ef\u4ee5\u5f97\u5230\uff1a P = I2 R \u8fd9\u4e2a\u516c\u5f0f\u8868\u793a\uff1a\u5728\u7535\u6d41\u76f8\u540c\u7684\u6761\u4ef6\u4e0b\uff0c\u7535\u80fd\u8f6c\u5316\u6210\u70ed\u65f6\u7684\u529f\u7387\u8ddf\u5bfc\u4f53\u7684\u7535\u963b\u6210\u6b63\u6bd4\u3002
3\u3001\u5f53\u53d1\u7535\u5382\u7535\u529f\u7387\u4e00\u5b9a\uff0c\u9001\u7535\u7535\u538b\u4e0e\u9001\u7535\u7535\u6d41\u6210\u53cd\u6bd4\uff0c\u8f93\u7535\u65f6\u7535\u538b\u8d8a\u9ad8\uff0c\u7535\u6d41\u5c31\u8d8a\u5c0f\u3002\u6b64\u65f6\u56e0\u4e3a\u8f93\u7535\u7ebf\u8def\u4e0a\u6709\u7535\u963b\uff0c\u6839\u636eP = I2 R \u53ef\u77e5\uff0c\u7535\u6d41\u8d8a\u5c0f\u65f6\uff0c\u5728\u7535\u7ebf\u4e0a\u6d88\u8017\u7684\u7535\u80fd\u5c31\u4f1a\u8d8a\u5c11\u3002\u6240\u4ee5\u7535\u5382\u5728\u8f93\u7535\u65f6\u63d0\u9ad8\u9001\u7535\u7535\u538b\uff0c\u51cf\u5c11\u7535\u80fd\u5728\u8f93\u7535\u7ebf\u8def\u4e0a\u7684\u635f\u5931\u3002
4\u3001\u7535\u6d41\u7684\u70ed\u6548\u5e94\u5bf9\u4eba\u4eec\u6709\u6709\u5229\u7684\u4e00\u9762\uff08\u5982\u7535\u7089\u3001\u7535\u70ed\u6c34\u5668\u3001\u7535\u70ed\u6bef\u7b49\uff09\uff0c\u4e5f\u6709\u4e0d\u5229\u7684\u4e00\u9762\uff08\u5982\u7535\u89c6\u673a\u3001\u7535\u8111\u3001\u7535\u52a8\u673a\u5728\u5de5\u4f5c\u65f6\u4ea7\u751f\u7684\u70ed\u91cf\uff09\u3002\u6211\u4eec\u8981\u5229\u7528\u6709\u5229\u7535\u70ed\uff0c\u51cf\u5c11\u6216\u9632\u6b62\u4e0d\u5229\u7535\u70ed\uff08\u5982\u7535\u89c6\u673a\u7684\u6563\u70ed\u7a97\uff0c\u7535\u8111\u4e2d\u7684\u6563\u70ed\u98ce\u6247\uff0c\u7535\u52a8\u673a\u7684\u5916\u58f3\u94c1\u7247\u7b49\uff09\u3002
\u4e94\u3001\u7535\u529f\u7387\u548c\u5b89\u5168\u7528\u7535
\u6839\u636e\u516c\u5f0f I = P / U \u53ef\u77e5\uff0c\u5bb6\u5ead\u7535\u8def\u7535\u538b\u4e00\u5b9a\u65f6\uff0c\u7535\u529f\u7387\u8d8a\u5927\uff0c\u7535\u6d41I\u4e5f\u5c31\u8d8a\u5927\u3002\u6240\u4ee5\u5728\u5bb6\u5ead\u7535\u8def\u4e2d\uff1aA\u3001\u4e0d\u8981\u540c\u65f6\u4f7f\u7528\u5f88\u591a\u5927\u529f\u7387\u7528\u7535\u5668\uff1bB\u3001\u4e0d\u8981\u5728\u540c\u4e00\u63d2\u5ea7\u4e0a\u63a5\u5165\u592a\u591a\u7684\u5927\u529f\u7387\u7528\u7535\u5668\uff1bC\u3001\u4e0d\u8981\u7528\u94dc\u4e1d\u3001\u94c1\u4e1d\u4ee3\u66ff\u4fdd\u9669\u4e1d\uff0c\u800c\u4e14\u4fdd\u9669\u4e1d\u5e94\u8be5\u5728\u53ef\u7528\u8303\u56f4\u5185\u5c3d\u91cf\u4f7f\u7528\u7ec6\u4e00\u4e9b\u7684\u3002
\u7b2c\u516b\u7ae0 \u7535\u4e0e\u78c1
\u4e00\u3001\u78c1\u573a
1\u3001\u7269\u4f53\u5177\u6709\u5438\u5f15\u94c1\u3001\u94b4\u3001\u954d\u7b49\u7269\u4f53\u7684\u6027\u8d28\uff0c\u8be5\u7269\u4f53\u5c31\u5177\u6709\u4e86\u78c1\u6027\u3002\u5177\u6709\u78c1\u6027\u7684\u7269\u4f53\u53eb\u505a\u78c1\u4f53\u3002
2\u3001\u78c1\u4f53\u4e24\u7aef\u78c1\u6027\u6700\u5f3a\u7684\u90e8\u5206\u53eb\u78c1\u6781\uff0c\u78c1\u4f53\u4e2d\u95f4\u78c1\u6027\u6700\u5f31\u3002\u5f53\u60ac\u6302\u9759\u6b62\u65f6\uff0c\u6307\u5411\u5357\u65b9\u7684\u53eb\u5357\u6781\uff08S\uff09\uff0c\u6307\u5411\u5317\u65b9\u7684\u53eb\u5317\u6781\uff08N\uff09\u3002
\u7b2c\u4e5d\u7ae0 \u4fe1\u606f\u7684\u4f20\u9012
\u4e00\u3001\u73b0\u4ee3\u987a\u98ce\u8033\u2014\u2014\u7535\u8bdd
1\u30011876\u5e74\u7531\u7f8e\u56fd\u79d1\u5b66\u5bb6\u8d1d\u5c14\u53d1\u660e\u4e86\u7535\u8bdd\u3002\u6700\u7b80\u5355\u7684\u7535\u8bdd\u7531\u8bdd\u7b52\u548c\u542c\u7b52\u7ec4\u6210\u3002\u8bdd\u7b52\u5c06\u58f0\u4fe1\u53f7\u8f6c\u53d8\u4e3a\u97f3\u9891\u7535\u4fe1\u53f7\uff0c\u542c\u7b52\u5c06\u97f3\u9891\u7535\u4fe1\u53f7\u8f6c\u53d8\u4e3a\u58f0\u4fe1\u53f7\u3002\u901a\u8bdd\u53cc\u65b9\u7684\u8bdd\u7b52\u548c\u542c\u7b52\u662f\u4e92\u76f8\u4e32\u8054\u7684\uff0c\u81ea\u5df1\u7684\u8bdd\u7b52\u548c\u542c\u7b52\u662f\u4e92\u76f8\u72ec\u7acb\u7684\u3002
2\u3001\u4e3a\u4e86\u8282\u7ea6\u7535\u8bdd\u7ebf\u8def\u7684\u4f7f\u7528\u6548\u7387\uff0c\u4eba\u4eec\u53d1\u660e\u4e86\u7535\u8bdd\u4ea4\u6362\u673a\uff0c1891\u5e74\u51fa\u73b0\u4e86\u81ea\u52a8\u7535\u8bdd\u4ea4\u6362\u673a\uff0c\u5b83\u901a\u8fc7\u7535\u78c1\u7ee7\u7535\u5668\u8fdb\u884c\u63a5\u7ebf\u3002
3\u3001\u7535\u8bdd\u6309\u4fe1\u53f7\u8f93\u65b9\u5f0f\u6765\u5206\uff0c\u53ef\u5206\u4e3a\u6709\u7ebf\u7535\u8bdd\u548c\u65e0\u7ebf\u7535\u8bdd\uff1b\u6309\u4fe1\u53f7\u7c7b\u578b\u6765\u5206\uff0c\u53ef\u5206\u4e3a\u6a21\u62df\u7535\u8bdd\u548c\u6570\u5b57\u7535\u8bdd\u3002\u4fe1\u53f7\u7535\u6d41\u7684\u9891\u7387\u3001\u632f\u5e45\u53d8\u5316\u7684\u60c5\u51b5\u8ddf\u58f0\u97f3\u7684\u9891\u7387\u3001\u632f\u5e45\u53d8\u5316\u7684\u60c5\u51b5\u5b8c\u5168\u4e00\u6837\uff0c\u8fd9\u79cd\u4fe1\u53f7\u53eb\u6a21\u62df\u4fe1\u53f7\uff0c\u8fd9\u79cd\u901a\u4fe1\u53eb\u6a21\u62df\u901a\u4fe1\u3002\u7528\u4e0d\u540c\u7b26\u53f7\u7684\u4e0d\u540c\u7ec4\u5408\u8868\u793a\u7684\u4fe1\u53f7\u53eb\u6570\u5b57\u4fe1\u53f7\uff0c\u8fd9\u79cd\u901a\u4fe1\u53eb\u6570\u5b57\u901a\u4fe1\u3002
4\u3001\u6a21\u62df\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4f1a\u4e22\u5931\u4fe1\u606f\uff0c\u800c\u4e14\u6297\u5e72\u6270\u80fd\u529b\u4e0d\u5f3a\uff0c\u4fdd\u5bc6\u6027\u4e5f\u5f88\u5dee\uff0c\u4fe1\u53f7\u8870\u51cf\u5389\u5bb3\u3002\u6570\u5b57\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u79cd\u4e2d\uff0c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff0c\u4fdd\u5bc6\u6027\u597d\u3002
\u4e8c\u3001\u7535\u78c1\u6ce2\u7684\u6d77\u6d0b
1\u3001\u5bfc\u7ebf\u4e2d\u7684\u7535\u6d41\u8fc5\u901f\u53d8\u5316\u4f1a\u5728\u7a7a\u95f4\u6fc0\u8d77\u7535\u78c1\u6ce2\u3002\u7535\u78c1\u6ce2\u5728\u7a7a\u6c14\u3001\u6c34\u3001\u67d0\u4e9b\u56fa\u4f53\uff0c\u751a\u81f3\u771f\u7a7a\u4e2d\u90fd\u80fd\u4f20\u64ad\u3002\u5149\u6ce2\u4e5f\u662f\u7535\u78c1\u6ce2\u7684\u4e00\u79cd\u3002
2\u3001\u7535\u78c1\u6ce2\u7684\u901f\u5ea6\u548c\u5149\u901f\u4e00\u6837\uff0c\u90fd\u662f3 108 m / s\uff0c\u7535\u78c1\u6ce2\u7684\u901f\u5ea6\uff0c\u7b49\u4e8e\u6ce2\u957f \u548c\u9891\u7387f\u7684\u4e58\u79ef\uff1a c = f \u5355\u4f4d\u5206\u522b\u662f m / s\uff08\u7c73\u6bcf\u79d2\uff09\u3001m\uff08\u7c73\uff09\u3001Hz\uff08\u8d6b\u5179\uff09\uff1b\u9891\u7387\u7684\u5e38\u7528\u5355\u4f4d\u8fd8\u6709\u5343\u8d6b\uff08kHz\uff09\u548c\u5146\u8d6b\uff08MHz\uff09\u3002
3\u3001\u7528\u4e8e\u5e7f\u64ad\u3001\u7535\u89c6\u548c\u79fb\u52a8\u7535\u8bdd\u7684\u7535\u78c1\u6ce2\u662f\u6570\u767e\u5343\u8d6b\u81f3\u6570\u767e\u5146\u8d6b\u7684\u90a3\u4e00\u90e8\u5206\uff0c\u53eb\u505a\u65e0\u7ebf\u7535\u6ce2\u3002
\u4e09\u3001\u5e7f\u64ad \u7535\u89c6\u548c\u79fb\u52a8\u901a\u4fe1
1\u3001\u65e0\u7ebf\u7535\u5e7f\u64ad\u7684\u53d1\u5c04\u7531\u5e7f\u64ad\u7535\u53f0\u5b8c\u6210\uff1b\u53d1\u5c04\u90e8\u5206\u4e3b\u8981\u7531\u8bdd\u7b52\u3001\u8f7d\u6ce2\u53d1\u751f\u5668\u3001\u8c03\u5236\u5668\u3001\u653e\u5927\u5668\u548c\u53d1\u5c04\u5929\u7ebf\u7ec4\u6210\u3002\u63a5\u6536\u90e8\u5206\u4e3b\u8981\u7531\u63a5\u6536\u5929\u7ebf\u3001\u8c03\u8c10\u5668\u3001\u89e3\u8c03\u5668\u548c\u626c\u58f0\u5668\u7ec4\u6210\u3002
2\u3001\u7535\u89c6\u4fe1\u53f7\u7684\u4f20\u8f93\u4e0e\u65e0\u7ebf\u7535\u5e7f\u64ad\u57fa\u672c\u76f8\u540c\uff0c\u53ea\u662f\u53d1\u5c04\u90e8\u5206\u591a\u4e86\u6444\u50cf\u673a\uff0c\u63a5\u6536\u90e8\u5206\u591a\u4e86\u663e\u50cf\u7ba1\u3002
3\u3001\u79fb\u52a8\u7535\u8bdd\uff08\u65e0\u7ebf\u7535\u8bdd\uff0c\u624b\u673a\uff09\u65e2\u662f\u65e0\u7ebf\u7535\u7684\u53d1\u5c04\u88c5\u7f6e\uff0c\u53c8\u662f\u65e0\u7ebf\u7535\u7684\u63a5\u6536\u88c5\u7f6e\u3002\u5b83\u7684\u7279\u70b9\u662f\u4f53\u79ef\u5c0f\uff0c\u53d1\u5c04\u529f\u7387\u4e0d\u5927\uff0c\u5929\u7ebf\u7b80\u5355\uff0c\u7075\u654f\u5ea6\u4e0d\u9ad8\uff0c\u9700\u8981\u57fa\u7ad9\u53f0\u8f6c\u53d1\u4fe1\u53f7\u3002\u65e0\u7ef3\u7535\u8bdd\u662f\u5bb6\u8bdd\u4e2d\u4e3b\u673a\u7535\u8bdd\u4e0e\u5206\u673a\u7535\u8bdd\u6c9f\u901a\u7684\u4e00\u79cd\u5bb6\u7528\u7535\u8bdd\uff0c\u4e00\u822c\u4f7f\u7528\u8303\u56f4\u5728\u51e0\u5341\u7c73\u6216\u51e0\u767e\u7c73\u4e4b\u5185\u3002
4\u3001\u97f3\u9891\u7535\u6d41\u548c\u89c6\u9891\u7535\u6d41\u52a0\u8f7d\u5230\u9ad8\u9891\u7535\u6d41\u4e0a\uff0c\u5f62\u6210\u4e86\u53d1\u5c04\u80fd\u529b\u5f88\u5f3a\u7684\u5c04\u9891\u7535\u6d41\u3002
VIDEO IN \u89c6\u9891\u8f93\u5165 VIDEO OUT \u89c6\u9891\u8f93\u51fa
AUDIO IN \u97f3\u9891\u8f93\u5165 AUDIO OUT \u97f3\u9891\u8f93\u51fa
RADIO IN \u5c04\u9891\u8f93\u5165 RADIO OUT \u5c04\u9891\u8f93\u51fa
S-VIDEO S\u7aef\u5b50
\u56db\u3001\u8d8a\u6765\u8d8a\u5bbd\u7684\u4fe1\u606f\u4e4b\u8def
1\u3001\u5fae\u6ce2\u662f\u6ce2\u957f\u572810m ~ 1mm\u4e4b\u95f4\uff0c\u9891\u7387\u572830MHz ~ 3 105MHz\u4e4b\u95f4\u7684\u7535\u78c1\u6ce2\u3002\u5fae\u6ce2\u5927\u81f4\u76f4\u7ebf\u4f20\u64ad\uff0c\u6240\u4ee5\u6bcf\u969450\u516c\u91cc\u5de6\u53f3\u5c31\u8981\u5efa\u4e00\u4e2a\u5fae\u6ce2\u4e2d\u7ee7\u7ad9\u3002
2\u3001\u5229\u7528\u536b\u661f\u505a\u901a\u4fe1\u4e2d\u7ee7\u7ad9\uff0c\u79f0\u4e4b\u4e3a\u536b\u661f\u901a\u4fe1\u3002\u8fd9\u79cd\u536b\u661f\u76f8\u5bf9\u4e8e\u5730\u7403\u9759\u6b62\u4e0d\u52a8\uff0c\u53eb\u505a\u540c\u6b65\u5730\u7403\u536b\u661f\u3002\u5728\u4e00\u7403\u5468\u56f4\u5747\u5300\u5206\u5e033\u9897\u536b\u661f\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5168\u7403\u901a\u4fe1\u3002
3\u30011960\u5e74\uff0c\u7f8e\u56fd\u79d1\u5b66\u5bb6\u6885\u66fc\u53d1\u660e\u4e86\u7b2c\u4e00\u53f0\u6fc0\u5149\u5668\u3002\u6fc0\u5149\u7684\u7279\u70b9\u662f\u9891\u7387\u5355\u4e00\u3001\u65b9\u5411\u9ad8\u5ea6\u96c6\u4e2d\u3002\u5149\u7ea4\u901a\u4fe1\u662f\u5229\u7528\u6fc0\u5149\u5728\u5149\u7ea4\u4e2d\u4f20\u8f93\u4fe1\u53f7\u7684\u3002\u5149\u7ea4\u7531\u4e2d\u592e\u7684\u73bb\u7483\u82af\u548c\u5916\u9762\u7684\u53cd\u5c04\u5c42\u3001\u4fdd\u62a4\u5c42\u6784\u6210\u7684\uff0c\u53ef\u4ee5\u4f20\u8f93\u5927\u91cf\u7684\u4fe1\u606f\u3002
4\u3001\u5c06\u6570\u53f0\u8ba1\u7b97\u673a\u901a\u8fc7\u5404\u79cd\u65b9\u5f0f\u8054\u7ed3\u5728\u4e00\u8d77\uff0c\u4fbf\u7ec4\u6210\u4e86\u7f51\u7edc\u901a\u4fe1\u3002\u73b0\u5728\u4e16\u754c\u4e0a\u6700\u5927\u7684\u8ba1\u7b97\u673a\u7f51\u7edc\u53eb\u56e0\u7279\u7f51\uff08Internet\uff09\u3002\u5b83\u4f7f\u7528\u6700\u9891\u7e41\u7684\u901a\u4fe1\u65b9\u5f0f\u662f\u7535\u5b50\u90ae\u4ef6(e-mail)\u3002\u4f8b\u5982\[email protected] @\u524d\u9762\u662f\u7528\u6237\u540d\uff0c\u540e\u9762\u662f\u670d\u52a1\u5668\u540d\uff0ccn\u8868\u793a\u8fd9\u4e2a\u670d\u52a1\u5668\u662f\u5728\u4e2d\u56fd\u6ce8\u518c\u7684\u3002\u7535\u5b50\u90ae\u4ef6\u4f20\u9012\u4fe1\u606f\u65e2\u5feb\u53c8\u65b9\u4fbf\u3002
\u672c\u518c\u7269\u7406\u77e5\u8bc6\u6c47\u603b
\u672c\u518c\u6709\u5173\u540d\u79f0\u6982\u5ff5
\u540d\u79f0 \u542b\u4e49 \u7b26\u53f7 \u5355\u4f4d\uff08\u5e38\u7528\u5355\u4f4d\uff09 \u5355\u4f4d\u7b26\u53f7
\u7535\u6d41 \u7535\u8def\u4e2d\u7535\u6d41\u5f3a\u5ea6\u7684\u5927\u5c0f I \u5b89\u57f9\uff08\u6beb\u5b89\uff09 A\uff08mA\uff09
\u7535\u538b \u7535\u8def\u4e2d\u4ea7\u751f\u7535\u6d41\u7684\u539f\u56e0 U \u4f0f\u7279\uff08\u5343\u4f0f\u3001\u6beb\u4f0f\uff09 V\uff08kV\u3001mV\uff09
\u7535\u963b \u5bfc\u4f53\u5bf9\u7535\u6d41\u7684\u963b\u788d\u4f5c\u7528 R \u6b27\u59c6\uff08\u5343\u6b27\u3001\u5146\u6b27\uff09 \uff08k \u3001M \uff09
\u7535\u529f\u7387 \u7535\u6d41\u505a\u529f\u7684\u5feb\u6162 P \u74e6\u7279\uff08\u5343\u74e6\u3001\u9a6c\u529b\uff09 W\uff08kW\u3001\u5339\uff09
\u7535\u80fd \u7535\u6d41\u5177\u6709\u7684\u505a\u529f\u7684\u80fd\u91cf W \u7126\u8033\uff08\u5343\u74e6\u65f6\uff09 J\uff08kWh\uff09
\u6ce2\u901f \u7535\u78c1\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6 C \u7c73\u6bcf\u79d2\uff08\u5343\u7c73\u6bcf\u79d2\uff09 m/s (km/s)
\u6ce2\u957f \u7535\u78c1\u6ce2\u4e00\u4e2a\u6ce2\u957f\u7684\u957f\u5ea6 \u7c73\uff08\u5343\u7c73\uff09 m (km)
\u9891\u7387 1\u79d2\u949f\u5185\u6ce2\u957f\u7684\u4e2a\u6570 f \u8d6b\u5179\uff08\u5343\u8d6b\u3001\u5146\u8d6b\uff09 Hz(kHz\u3001MHz)
\u672c\u518c\u6709\u5173\u516c\u5f0f
\u540d\u79f0 \u516c\u5f0f \u542b\u4e49 \u53d8\u5f62\u516c\u5f0f
\u6b27\u59c6\u5b9a\u5f8b I = U / R \u7535\u6d41\u8ddf\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u8ddf\u7535\u963b\u6210\u53cd\u6bd4 U = I RR = U / I
\u7535\u529f\u7387\u516c\u5f0f1 P = W / t \u7535\u529f\u7387\u4e0e\u7535\u80fd\u6b63\u6bd4\uff0c\u4e0e\u65f6\u95f4\u6210\u53cd\u6bd4\uff08\u4e24\u8005\u8981\u540c\u65f6\u8003\u8651\uff09 W = P tT = W / P
\u7535\u529f\u7387\u516c\u5f0f2 P = I U \u7535\u529f\u7387\u7b49\u4e8e\u7535\u6d41\u4e0e\u7535\u538b\u7684\u4e58\u79ef I = P / UU = P / I
\u7535\u529f\u7387\u516c\u5f0f3 P = I2 R \u7535\u529f\u7387\u7b49\u4e8e\u7535\u6d41\u7684\u5e73\u65b9\u4e0e\u7535\u963b\u7684\u4e58\u79ef R = P / I2
\u7535\u529f\u7387\u516c\u5f0f4 P = U2 / R \u7535\u529f\u7387\u4e0e\u7535\u538b\u7684\u5e73\u65b9\u6210\u6b63\u6bd4\uff0c\u4e0e\u7535\u963b\u6210\u53cd\u6bd4 R = U2 / P
\u7535\u78c1\u6ce2\u901f\u5ea6\u516c\u5f0f c = f \u6ce2\u901f\u7b49\u4e0e\u6ce2\u957f\u4e0e\u9891\u7387\u7684\u4e58\u79ef = c / ff = c /
\u672c\u518c\u6709\u5173\u79d1\u5b66\u5bb6
\u59d3\u540d \u56fd\u7c4d \u4e8b\u8ff9 \u6d89\u53ca\u7269\u7406\u5b66\u77e5\u8bc6
\u6b27\u59c6 \u5fb7\u56fd 1826\u5e74\u603b\u7ed3\u5f52\u7eb3\u51fa\u6b27\u59c6\u5b9a\u5f8b \u7535\u8def\u7269\u7406\u91cf\u7684\u5173\u7cfb
\u5965\u65af\u7279 \u4e39\u9ea6 1820\u5e74\u53d1\u73b0\u4e86\u7535\u4e0e\u78c1\u7684\u5173\u7cfb \u7535\u6d41\u7684\u78c1\u6548\u5e94
\u6cd5\u62c9\u7b2c \u82f1\u56fd 1831\u5e74\u53d1\u73b0\u4e86\u78c1\u573a\u4ea7\u751f\u7535\u6d41\u7684\u89c4\u5f8b \u7535\u78c1\u611f\u5e94\u73b0\u8c61
\u8d1d\u5c14 \u7f8e\u56fd 1876\u5e74\u53d1\u660e\u4e86\u7535\u8bdd \u4fe1\u606f\u7684\u4f20\u9012
\u5bcc\u5170\u514b\u6797 \u7f8e\u56fd \u53d1\u660e\u4e86\u907f\u96f7\u9488 \u5b89\u5168\u7528\u7535
\u6c88\u62ec \u4e2d\u56fd\u5b8b\u4ee3 \u53d1\u73b0\u5730\u7406\u4e24\u6781\u4e0e\u5730\u78c1\u4e24\u6781\u5e76\u4e0d\u5b8c\u5168\u91cd\u5408 \u5730\u78c1\u573a
\u6885\u66fc \u7f8e\u56fd 1960\u5e74\u53d1\u660e\u4e86\u7b2c\u4e00\u53f0\u7ea2\u5b9d\u77f3\u6fc0\u5149\u5668 \u6fc0\u5149
\u83ab\u5c14\u65af \u53d1\u660e\u4e86\u7535\u62a5 \u6570\u5b57\u901a\u4fe1
\u4e32\u8054\u3001\u5e76\u8054\u7535\u8def\u4e2d\u7684\u7535\u6d41\u3001\u7535\u538b\u3001\u7535\u963b\u7684\u603b\u5206\u5173\u7cfb
\u8fde\u7ed3\u60c5\u51b5 \u7535\u6d41\u3001\u7535\u538b\u3001\u7535\u963b\u4e09\u8005\u7684\u603b\u5206\u5173\u7cfb \u8868\u8fbe\u5f0f
\u4e32\u8054\u7535\u8def \u7535\u6d41\u5404\u5904\u76f8\u7b49 I\u603b = I1 = I2
\u603b\u7535\u538b\u7b49\u4e8e\u5404\u7528\u7535\u5668\u7684\u7535\u538b\u4e4b\u548c U\u603b = U1+U2
\u603b\u7535\u963b\u7b49\u4e8e\u5404\u7528\u7535\u5668\u7684\u7535\u963b\u4e4b\u548c R\u603b = R1+R2
\u5e76\u8054\u7535\u8def \u603b\u7535\u6d41\u7b49\u4e8e\u5404\u652f\u8def\u7684\u7535\u6d41\u4e4b\u548c I\u603b = I1+I2
\u7535\u538b\u5404\u5904\u76f8\u7b49 U\u603b = U1 = U2
\u603b\u7535\u963b\u7684\u5012\u6570\u548c\u7b49\u4e8e\u5404\u652f\u8def\u7684\u5012\u6570\u4e4b\u548c
\u4e00\u3001 \u6b27\u59c6\u5b9a\u5f8b\u90e8\u5206
1\uff0e I=U/R\uff08\u6b27\u59c6\u5b9a\u5f8b:\u5bfc\u4f53\u4e2d\u7684\u7535\u6d41\u8ddf\u5bfc\u4f53\u4e24\u7aef\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u8ddf\u5bfc\u4f53\u7684\u7535\u963b\u6210\u53cd\u6bd4\uff09
2\uff0e I=I1=I2=\u2026=In (\u4e32\u8054\u7535\u8def\u4e2d\u7535\u6d41\u7684\u7279\u70b9\uff1a\u7535\u6d41\u5904\u5904\u76f8\u7b49)
3\uff0e U=U1+U2+\u2026+Un (\u4e32\u8054\u7535\u8def\u4e2d\u7535\u538b\u7684\u7279\u70b9\uff1a\u4e32\u8054\u7535\u8def\u4e2d\uff0c\u603b\u7535\u538b\u7b49\u4e8e\u5404\u90e8\u5206\u7535\u8def\u4e24\u7aef\u7535\u538b\u4e4b\u548c)
4\uff0e I=I1+I2+\u2026+In (\u5e76\u8054\u7535\u8def\u4e2d\u7535\u6d41\u7684\u7279\u70b9\uff1a\u5e72\u8def\u4e0a\u7684\u7535\u6d41\u7b49\u4e8e\u5404\u652f\u8def\u7535\u6d41\u4e4b\u548c)
5\uff0e U=U1=U2=\u2026=Un \uff08\u5e76\u8054\u7535\u8def\u4e2d\u7535\u538b\u7684\u7279\u70b9\uff1a\u5404\u652f\u8def\u4e24\u7aef\u7535\u538b\u76f8\u7b49\u3002\u90fd\u7b49\u4e8e\u7535\u6e90\u7535\u538b\uff09
6\uff0e R=R1+R2+\u2026+Rn (\u4e32\u8054\u7535\u8def\u4e2d\u7535\u963b\u7684\u7279\u70b9\uff1a\u603b\u7535\u963b\u7b49\u4e8e\u5404\u90e8\u5206\u7535\u8def\u7535\u963b\u4e4b\u548c)
7\uff0e 1/R=1/R1+1/R2+\u2026+1/Rn (\u5e76\u8054\u7535\u8def\u4e2d\u7535\u963b\u7684\u7279\u70b9\uff1a\u603b\u7535\u963b\u7684\u5012\u6570\u7b49\u4e8e\u5404\u5e76\u8054\u7535\u963b\u7684\u5012\u6570\u4e4b\u548c)
8\uff0e R\u5e76= R/n\uff08n\u4e2a\u76f8\u540c\u7535\u963b\u5e76\u8054\u65f6\u6c42\u603b\u7535\u963b\u7684\u516c\u5f0f\uff09
9\uff0e R\u4e32=nR (n\u4e2a\u76f8\u540c\u7535\u963b\u4e32\u8054\u65f6\u6c42\u603b\u7535\u963b\u7684\u516c\u5f0f)
10\uff0e U1\uff1aU2=R1\uff1aR2 \uff08\u4e32\u8054\u7535\u8def\u4e2d\u7535\u538b\u4e0e\u7535\u963b\u7684\u5173\u7cfb\uff1a\u7535\u538b\u4e4b\u6bd4\u7b49\u4e8e\u5b83\u4eec\u6240\u5bf9\u5e94\u7684\u7535\u963b\u4e4b\u6bd4\uff09
11\uff0e I1\uff1aI2=R2\uff1aR1 \uff08\u5e76\u8054\u7535\u8def\u4e2d\u7535\u6d41\u4e0e\u7535\u963b\u7684\u5173\u7cfb\uff1a\u7535\u6d41\u4e4b\u6bd4\u7b49\u4e8e\u5b83\u4eec\u6240\u5bf9\u5e94\u7684\u7535\u963b\u7684\u53cd\u6bd4\uff09
\u4e8c\u3001 \u7535\u529f\u7535\u529f\u7387\u90e8\u5206
12\uff0eP=UI \uff08\u7ecf\u9a8c\u5f0f\uff0c\u9002\u5408\u4e8e\u4efb\u4f55\u7535\u8def\uff09
13\uff0eP=W/t \uff08\u5b9a\u4e49\u5f0f\uff0c\u9002\u5408\u4e8e\u4efb\u4f55\u7535\u8def\uff09
14\uff0eQ=I2Rt (\u7126\u8033\u5b9a\u5f8b\uff0c\u9002\u5408\u4e8e\u4efb\u4f55\u7535\u8def)
15\uff0eP=P1+P2+\u2026+Pn \uff08\u9002\u5408\u4e8e\u4efb\u4f55\u7535\u8def\uff09
16\uff0eW=UIt (\u7ecf\u9a8c\u5f0f,\u9002\u5408\u4e8e\u4efb\u4f55\u7535\u8def)
17. P=I2R (\u590d\u5408\u516c\u5f0f\uff0c\u53ea\u9002\u5408\u4e8e\u7eaf\u7535\u963b\u7535\u8def)
18. P=U2/R (\u590d\u5408\u516c\u5f0f\uff0c\u53ea\u9002\u5408\u4e8e\u7eaf\u7535\u963b\u7535\u8def)
19. W=Q \uff08\u7ecf\u9a8c\u5f0f\uff0c\u53ea\u9002\u5408\u4e8e\u7eaf\u7535\u963b\u7535\u8def\u3002\u5176\u4e2dW\u662f\u7535\u6d41\u6d41\u8fc7\u5bfc\u4f53\u6240\u505a\u7684\u529f\uff0cQ\u662f\u7535\u6d41\u6d41\u8fc7\u5bfc\u4f53\u4ea7\u751f\u7684\u70ed\uff09
20. W=I2Rt (\u590d\u5408\u516c\u5f0f\uff0c\u53ea\u9002\u5408\u4e8e\u7eaf\u7535\u963b\u7535\u8def)
21. W=U2t/R (\u590d\u5408\u516c\u5f0f\uff0c\u53ea\u9002\u5408\u4e8e\u7eaf\u7535\u963b\u7535\u8def)
22\uff0eP1:P2=U1:U2=R1:R2 (\u4e32\u8054\u7535\u8def\u4e2d\u7535\u529f\u7387\u4e0e\u7535\u538b\u3001\u7535\u963b\u7684\u5173\u7cfb\uff1a\u4e32\u8054\u7535\u8def\u4e2d\uff0c\u7535\u529f\u7387\u4e4b\u6bd4\u7b49\u4e8e\u5b83\u4eec\u6240\u5bf9\u5e94\u7684\u7535\u538b\u3001\u7535\u963b\u4e4b\u6bd4)
23\uff0eP1:P2=I1:I2=R2:R1 (\u5e76\u8054\u7535\u8def\u4e2d\u7535\u529f\u7387\u4e0e\u7535\u6d41\u3001\u7535\u963b\u7684\u5173\u7cfb\uff1a\u5e76\u8054\u7535\u8def\u4e2d\uff0c\u7535\u529f\u7387\u4e4b\u6bd4\u7b49\u4e8e\u5b83\u4eec\u6240\u5bf9\u5e94\u7684\u7535\u6d41\u4e4b\u6bd4\u3001\u7b49\u4e8e\u5b83\u4eec\u6240\u5bf9\u5e94\u7535\u963b\u7684\u53cd\u6bd4)
\u529b\uff0c\u5f39\u529b\uff0c\u91cd\u529b\uff0c\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\uff0c\u4e8c\u529b\u5e73\u8861\uff0c\u6469\u64e6\u529b\uff0c\u538b\u5f3a\uff0c\u6db2\u4f53\u7684\u538b\u5f3a\uff0c\u5927\u6c14\u538b\u5f3a\uff0c\u6d41\u4f53\u538b\u5f3a\u4e0e\u6d41\u901f\u7684\u5173\u7cfb\uff0c\u6d6e\u529b\uff0c\u963f\u57fa\u7c73\u5fb7\u539f\u7406\uff0c\u7269\u4f53\u7684\u6d6e\u6c89\u6761\u4ef6\u53ca\u5e94\u7528\uff0c\u529f\uff0c\u529f\u7387\uff0c\u52a8\u80fd\u548c\u52bf\u80fd\uff0c\u673a\u68b0\u80fd\u53ca\u5176\u8f6c\u5316\uff0c\u6760\u6746\uff0c\u6ed1\u8f6e\uff0c\u673a\u68b0\u6548\u7387\u3002\u6ca1\u4e86\uff0c\u5feb\u7d2f\u6b7b\u6211\u4e86......\u591a\u7ed9\u70b9\u5206\u4e0d\u884c\u4e48\uff1f
人教版初二（八年级）下学期物理主要以力学为主，它包括六个单元：第七章、力
第八章、运动和力
第九章、压强
第十章、浮力
第十一章、功和机械能
第十二单、简单机械
可以说本册的物理知识非常重要，在整个初中阶段的物理学中都有着举足轻重的作用，初中物理可以分为“光”、“热”、“力”、“声”、“电”五个版块，而力学在中考中占的分值约在33分左右，由此可见它的重要性。
另外打好力学基础也是学好高中物理的前提，它对学生物理方面的思维有着很好的培养！
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