{"id":27312,"date":"2000-01-07T10:00:06","date_gmt":"2000-01-07T02:00:06","guid":{"rendered":"http:\/\/www.qiusir.com\/?p=27312"},"modified":"2026-03-10T08:52:03","modified_gmt":"2026-03-10T00:52:03","slug":"8-%e5%8a%9f","status":"publish","type":"post","link":"https:\/\/www.qiusir.com\/?p=27312","title":{"rendered":"\u00a707.\u529f\u548c\u80fd(\u52a8\u80fd\u5b9a\u7406)"},"content":{"rendered":"<p><center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/potential-and-kinetic-energy.jpg\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n\u52a8\u80fd\u5b9a\u7406<br \/>\n\u52bf\u80fd\u5b9a\u7406<br \/>\n\u673a\u68b0\u80fd\u5b9a\u7406<br \/>\n\u70ed\u91cf\u5b9a\u7406<br \/>\n\u52bf\u80fd\uff08Potential Energy\uff09\uff0c\u4ea6\u79f0\u4f4d\u80fd\uff0c\u8868\u793a\u7269\u4f53\u5728\u7279\u5b9a\u4f4d\u7f6e\u4e0a\u6240\u50a8\u5b58\u7684\u80fd\u91cf\u3002\u5728\u56fd\u9645\u5355\u4f4d\u5236\u4e0b\u7684\u5355\u4f4d\u662f\u7126\u8033\uff08J\uff09\uff0c\u53e6\u5916\u5728\u6d89\u53ca\u5230\u7c92\u5b50\u7269\u7406\u65f6\u5e38\u7528\u5230\u7535\u5b50\u4f0f\u7279\uff08eV\uff09\uff0c\u9ad8\u65af\u5355\u4f4d\u5236\u4e0b\u4e3a\u5c14\u683c\uff08erg\uff09\u3002\u52bf\u80fd\u4e00\u822c\u4f7f\u7528\u201cEp\u201d\u8868\u793a\uff0c\u4e5f\u5e38\u4f7f\u7528\u201cW\u201d\u201cU\u201d\u548c\u201cV\u201d\u3002<br \/>\n\u901a\u5e38\u6211\u4eec\u5e76\u4e0d\u5728\u610f\u52bf\u80fd\u7684\u7edd\u5bf9\u5927\u5c0f\uff0c\u800c\u662f\u5173\u5fc3\u5176\u53d8\u5316\u91cf\uff0c\u6709\u65f6\u4e3a\u4e86\u8ba1\u7b97\u6216\u8005\u53d9\u8ff0\u65b9\u4fbf\uff0c\u6211\u4eec\u4e5f\u53d6\u4e00\u4e2a\u52bf\u80fd\u96f6\u70b9O\uff0c\u89c4\u5b9aO\u5904\u52bf\u80fdEp(O)=0\uff0c\u4e00\u822c\u9009Fcon=0\u70b9\u4e3a\u52bf\u80fd\u96f6\u70b9\u3002<br \/>\n<center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/jpwk.png\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n\u529b\u5b66\u7684\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u306e\u6cd5\u5247\uff08\u529b\u5b66\u80fd\u5b88\u6052\u5b9a\u5f8b\uff09<br \/>\n<center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/jpEbaocun.png\" width=\"580\" class=\"framed\" \/><\/center><\/p>\n<p>\u53d8\u529b\u7684\u529f<br \/>\n<center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/twtywlx2c30.png\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n\u52a0\u901f\u8fc7\u7a0b\u4e2d\u505a\u7684\u529f\uff0c\u514b\u670d\u4ee5\u52a0\u901f\u5ea6a\u52a0\u901f\u7684\u8d28\u91cfm\u7684\u60ef\u6027\u529bma\u6240\u505a\u7684\u529f\u3002$$s=\\frac{1}{2}a\\Delta t^2=\\frac{(v-v_0)^2}{2a}$$\u7531\u4e8e\u52a0\u901f\u8fc7\u7a0b\u4e2d\u529f\u4ec5\u4ec5\u4e0e\u59cb\u672b\u901f\u5ea6\u6709\u5173\uff0c\u5bf9\u4e8e\u529b\u968f\u65f6\u95f4\u800c\u53d8\u7684\u60c5\u51b5\uff0c$$W_a=\\frac{1}{2}m(v-v_0)^2$$\u4e5f\u80fd\u6210\u7acb\u3002\uff08\u7269\u4f53\u6ed1\u4e0a\u4f20\u9001\u5e26\u4e0a\u4ea7\u751f\u7684\u70ed\u91cf\u4e5f\u662f\u8fd9\u4e2a\u516c\u5f0f\uff1f\uff09<\/p>\n<p><center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/LHG2023.png\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n\u65e9\u5728Fermat&#8217;s Library\u90a3\u770b\u5230\u6765\u81ea1960\u5e74R.Sutton\u7684\u4e00\u7bc7\u6587\u7ae0[<a href=\"https:\/\/fermatslibrary.com\/s\/experimental-self-plotting-of-trajectories\" rel=\"noopener\" target=\"_blank\">?<\/a>]\u7684\u8fd9\u4e2a\u7b80\u5355\u7684\u5b9e\u9a8c\uff1a\u8ba9\u8d28\u91cf\u4e3am\u7684\u5c0f\u7403\u4ece\u5149\u6ed1\u659c\u9762\u4e0a\u6ed1\u4e0b\u5e76\u4ee5\u4ef0\u89d2\u03b1\u53d1\u5c04\uff0c\u5219\u5c04\u7a0b\u4e0d\u53d6\u51b3\u4e8eg\uff0c\u5c31\u662f\u8bf4\u5728\u5730\u7403\u4e0a\u548c\u706b\u661f\u4e0a\u662f\u4e00\u6837\u7684\u5c04\u7a0b\u3002<br \/>\n\u4eca\u5929\u8ba9\u5c0f\u80e1\u540c\u5b66\u8ba1\u7b97\u4e86\u4e00\u4e0b&#8230;<br \/>\n$mgh=\\frac{1}{2}mv_0^2$<br \/>\n$l=2v_0cos\\alpha\\frac{v_0sin\\alpha}{g}$\u3001<br \/>\n$l=4hsin\\alpha cos\\alpha$<br \/>\n[<a href=\"http:\/\/www.qiusir.com\/?p=5583\" rel=\"noopener\" target=\"_blank\">?<\/a>]\u7ad6\u76f4\u65b9\u5411\u5706\u5468\u8fd0\u52a8\u89e3\u6790\u56fe<br \/>\n<center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/MPO\/huanguangantforces.png\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n$U_r=-G\\frac{Mm}{r}$<br \/>\n<center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/twltx2c2e1.png\" width=\"580\" class=\"framed\" \/><\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u52a8\u80fd\u5b9a\u7406 \u52bf\u80fd\u5b9a\u7406 \u673a\u68b0\u80fd\u5b9a\u7406 \u70ed\u91cf\u5b9a\u7406 \u52bf\u80fd\uff08Potential Energy\uff09\uff0c\u4ea6\u79f0\u4f4d\u80fd\uff0c\u8868\u793a\u7269\u4f53\u5728\u7279\u5b9a\u4f4d &#8230; 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