{"id":32,"date":"2023-06-27T03:30:43","date_gmt":"2023-06-27T03:30:43","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e7%89%9b%e9%a1%bf%e5%8d%95%e4%bd%8d\/"},"modified":"2023-06-27T03:30:43","modified_gmt":"2023-06-27T03:30:43","slug":"%e7%89%9b%e9%a1%bf%e5%8d%95%e4%bd%8d","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e7%89%9b%e9%a1%bf%e5%8d%95%e4%bd%8d\/","title":{"rendered":"\u725b\u987f\uff08\u5355\u4f4d\uff09"},"content":{"rendered":"

\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u725b\u987f\uff08\u5355\u4f4d\uff09\u3002\u60a8\u5c06\u627e\u5230\u725b\u987f\u7684\u5b9a\u4e49\u3001\u725b\u987f\u4e0e\u5176\u4ed6\u5355\u4f4d\u5236\u7684\u7b49\u4ef7\u5173\u7cfb\uff0c\u4ee5\u53ca\u725b\u987f\u7684\u500d\u6570\u548c\u7ea6\u6570\u3002 <\/p>\n

<\/span>\u4ec0\u4e48\u662f\u725b\u987f\uff08\u5355\u4f4d\uff09\uff1f<\/span><\/h2>\n

\u725b\u987f\u662f\u56fd\u9645\u5355\u4f4d\u5236\uff08SI\uff09\u4e2d\u529b\u7684\u8ba1\u91cf\u5355\u4f4d<\/strong>\uff0c\u5373\u725b\u987f\u662f\u7269\u7406\u5b66\u4e2d\u7528\u6765\u91cf\u5316\u529b\u7684\u5355\u4f4d\u3002<\/p>\n

\u4ece\u903b\u8f91\u4e0a\u8bb2\uff0c\u725b\u987f\u8fd9\u4e2a\u540d\u5b57\u662f\u5411\u8457\u540d\u7269\u7406\u5b66\u5bb6\u827e\u8428\u514b\u00b7\u725b\u987f\u81f4\u656c\uff0c\u4ed6\u5960\u5b9a\u4e86\u529b\u5b66\u7684\u57fa\u7840\uff0c\u529b\u5b66\u662f\u7814\u7a76\u529b\u6548\u5e94\u7684\u7269\u7406\u5b66\u90e8\u5206\u3002\u8fd9\u4e2a\u540d\u79f0\u572820\u4e16\u7eaa\u521d\u5f00\u59cb\u7528\u4e8e\u6d4b\u91cf\u529b\uff0c\u4f46\u76f4\u52301948\u5e74\u624d\u5728\u5ea6\u91cf\u8861\u5927\u4f1a\uff08CGPM\uff09\u4e0a\u6b63\u5f0f\u6307\u5b9a\u3002<\/p>\n

\u7279\u522b\u5730\uff0c\u725b\u987f\u662f\u4ee5 1 m\/s 2<\/sup>\u7684\u52a0\u901f\u5ea6\u79fb\u52a8 1 kg \u8d28\u91cf\u4f53\u6240\u9700\u7684\u529b\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u4e00\u725b\u987f\u662f\u5fc5\u987b\u65bd\u52a0\u5230 1 kg \u7269\u4f53\u4e00\u79d2\u949f\u4ee5\u4f7f\u8be5\u7269\u4f53\u4ece\u9759\u6b62\u72b6\u6001\u8fbe\u5230 1 m\/s \u901f\u5ea6\u6240\u9700\u7684\u529b\u3002 <\/p>\n

\"\u725b\u987f\u662f\u529b\u7684\u6d4b\u91cf\u5355\u4f4d\u3002\"<\/figure>\n

\u4e3a\u4e86\u8ba9\u60a8\u4e86\u89e3\u725b\u987f\u7684\u503c\uff0c\u8bf7\u8003\u8651\u4e00\u4e2a 50 \u516c\u65a4\u91cd\u7684\u4eba\u5fc5\u987b\u4e0d\u65ad\u65bd\u52a0 490.5 N \u7684\u529b\u624d\u80fd\u4fdd\u6301\u7ad9\u7acb\u3002\u8981\u63e1\u4f4f\u4e00\u5347\u7684\u5927\u74f6\u6c34\uff0c\u9700\u8981 9.81 N \u7684\u529b\u3002\u603b\u800c\u8a00\u4e4b\uff0c1 N \u662f\u4e00\u4e2a\u5f88\u5c0f\u7684\u529b\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5355\u4f4d\u725b\u987f\u4e5f\u53ef\u4ee5\u79f0\u4e3a\u725b\u987f\u6216\u4e2d\u5b50\u3002 <\/p>\n

<\/span>\u5f3a\u5ea6\u516c\u5f0f<\/span><\/h2>\n

\u4ece\u6570\u5b66\u4e0a\u6765\u8bf4\uff0c\u725b\u987f\u7684\u5355\u4f4d\u7b49\u4e8e\u4e00\u516c\u65a4\u4e58\u4ee5\u4e00\u7c73\u9664\u4ee5\u4e00\u79d2\u7684\u5e73\u65b9\u3002<\/strong><\/p>\n

\n

\"N=\\cfrac{kg\\cdot<\/p>\n<\/p>\n

\u8be5\u8868\u8fbe\u5f0f\u53ef\u4ee5\u5206\u89e3\u4e3a\u4e24\u4e2a\u7269\u7406\u91cf\u7684\u5355\u4f4d\uff1a\u8d28\u91cf\u548c\u52a0\u901f\u5ea6\u3002\u8d28\u91cf\u7684\u5355\u4f4d\u662f\u5343\u514b\uff0c\u52a0\u901f\u5ea6\u7684\u5355\u4f4d\u662f\u7c73\u9664\u4ee5\u79d2\u7684\u5e73\u65b9\u3002<\/p>\n

\n

\"N=kg\\cdot<\/p>\n<\/p>\n

\u56e0\u6b64\uff0c\u65bd\u52a0\u5230\u7269\u4f53\u4e0a\u7684\u529b\u7684\u516c\u5f0f<\/strong>\u7b49\u4e8e\u7269\u4f53\u7684\u8d28\u91cf\u4e58\u4ee5\u7269\u4f53\u7684\u52a0\u901f\u5ea6\u7684\u4e58\u79ef\u3002<\/p>\n

\n

\"F=m\\cdot<\/p>\n<\/p>\n

\u8fd9\u4e2a\u516c\u5f0f\u4e5f\u53ef\u4ee5\u7531\u725b\u987f\u7b2c\u4e8c\u5b9a\u5f8b\u63a8\u5bfc\u51fa\u6765\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u8981\u8ba1\u7b97\u5fc5\u987b\u5411 12 kg \u7269\u4f53\u65bd\u52a0\u7684\u529b\uff0c\u4f7f\u5176\u4ee5 5 m\/s 2<\/sup>\u52a0\u901f\uff0c\u6211\u4eec\u5fc5\u987b\u4f7f\u7528\u529b\u516c\u5f0f\u5e76\u8fdb\u884c\u4ee5\u4e0b\u8ba1\u7b97\uff1a <\/p>\n

\n

\"F=m\\cdot<\/p>\n<\/p>\n

<\/span>\u7cfb\u7edf\u95f4\u7684\u725b\u987f\u7b49\u4ef7<\/span><\/h2>\n

\u6b63\u5982\u6211\u4eec\u5728\u4e0a\u9762\u770b\u5230\u7684\uff0c\u725b\u987f\u662f\u56fd\u9645\u5355\u4f4d\u5236\u4e2d\u7684\u529b\u5355\u4f4d\u3002\u4f46\u5355\u4f4d\u7cfb\u7edf\u66f4\u591a\uff0c\u56e0\u6b64\u5373\u4f7f\u5b83\u4eec\u4e0d\u592a\u5e38\u7528\uff0c\u60a8\u4e5f\u53ef\u80fd\u9700\u8981\u5c06\u4ee5\u725b\u987f\u8868\u793a\u7684\u529b\u8f6c\u6362\u4e3a\u5176\u4ed6\u7c7b\u578b\u7684\u5355\u4f4d\u3002<\/p>\n

\u4e0b\u9762\u60a8\u5c06\u627e\u5230\u4e00\u4e2a\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u73b0\u6709\u7684\u4e0d\u540c\u529b\u5355\u4f4d\u4e4b\u95f4\u7684\u7b49\u4ef7\u5173\u7cfb\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u6b64\u8868\u5c06\u4ee5\u725b\u987f\u8868\u793a\u7684\u529b\u8f6c\u6362\u4e3a\u5176\u4ed6\u4e0d\u540c\u7684\u5355\u4f4d\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
\u529b\u91cf<\/th>\n\u7b49\u4ef7<\/th>\n<\/tr>\n<\/thead>\n
1 \u8fbe\u56e0 (dyn)<\/td>\n 1 10 -5N<\/sup><\/td>\n<\/tr>\n
1\u516c\u65a4\u529b\uff08kgf\uff09<\/td>\n 9.80665N<\/td>\n<\/tr>\n
1 \u65af\u6ed5 (sn)<\/td>\n 1000N<\/td>\n<\/tr>\n
1 \u78c5\u529b (lbf)<\/td>\n 4.44822N<\/td>\n<\/tr>\n
1 \u78c5 (pdl)<\/td>\n 0.1382550N<\/td>\n<\/tr>\n
1 \u76ce\u53f8\u529b (ozf)<\/td>\n 0.278014N <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

<\/span>\u725b\u987f\u500d\u6570\u548c\u7ea6\u6570<\/span><\/h2>\n

\u6709\u65f6\uff0c\u7528\u725b\u987f\u6765\u8868\u793a\u67d0\u4e9b\u529b\u53ef\u80fd\u662f\u4e0d\u5207\u5b9e\u9645\u7684\uff0c\u56e0\u4e3a\u975e\u5e38\u5927\u6216\u975e\u5e38\u5c0f\u7684\u503c\u7684\u529b\u5c06\u5206\u522b\u5728\u53f3\u4fa7\u6216\u5de6\u4fa7\u6709\u8bb8\u591a\u96f6\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u4e5f\u4f7f\u7528\u725b\u987f\u500d\u6570\u548c\u7ea6\u6570\u7684\u539f\u56e0\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5199 1 \u5146\u725b\u987f (1 MN) \u6bd4\u5199 1,000,000 \u725b\u987f\u8981\u5feb\uff0c\u5e76\u4e14\u8fd9\u4e24\u4e2a\u529b\u76f8\u7b49\u3002<\/p>\n

\u4e0b\u9762\u60a8\u53ef\u4ee5\u770b\u5230\u4e00\u4e2a\u8868\u683c\uff0c\u5176\u4e2d\u663e\u793a\u4e86\u56fd\u9645\u5355\u4f4d\u5236 (SI) \u4e2d\u725b\u987f\u7684\u500d\u6570\u548c\u7ea6\u6570\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u59d3\u540d<\/th>\n\u8c61\u5f81<\/th>\n\u4e00\u4e9b<\/th>\n<\/tr>\n<\/thead>\n
\u5341\u725b\u987f<\/td>\n\u62c5<\/td>\n10 1N<\/sup><\/td>\n<\/tr>\n
\u767e\u725b\u987f<\/td>\nhN<\/td>\n 10 2N<\/sup><\/td>\n<\/tr>\n
\u5343\u725b\u987f<\/td>\n\u5343\u725b<\/td>\n10 3N<\/sup><\/td>\n<\/tr>\n
\u5146\u725b\u987f<\/td>\nMN.<\/td>\n 10 6N<\/sup><\/td>\n<\/tr>\n
\u5409\u52a0\u725b\u987f<\/td>\n\u80be\u5c0f\u7403\u80be<\/td>\n10 9N<\/sup><\/td>\n<\/tr>\n
\u592a\u725b\u987f<\/td>\n\u603b\u6c2e<\/td>\n10 12<\/sup>\u725b<\/td>\n<\/tr>\n
\u4f69\u5854\u725b\u987f<\/td>\nPN<\/td>\n 10 15N<\/sup><\/td>\n<\/tr>\n
\u57c3\u514b\u8428\u725b\u987f<\/td>\n\u5728<\/td>\n10 18<\/sup>\u5317<\/td>\n<\/tr>\n
\u6cfd\u5854\u725b\u987f<\/td>\nZN<\/td>\n 10 21<\/sup>\u5317<\/td>\n<\/tr>\n
\u7ea6\u5854\u725b\u987f<\/td>\n\u6211\u4eec<\/td>\n10 24<\/sup>\u5317<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u59d3\u540d<\/th>\n\u8c61\u5f81<\/th>\n\u7ea6\u6570<\/th>\n<\/tr>\n<\/thead>\n
\u5fb7\u8f9b\u725b\u987f<\/td>\ndN<\/td>\n 10-1N<\/sup><\/td>\n<\/tr>\n
\u68ee\u8482\u725b\u987f<\/td>\n\u4e2d\u56fd<\/td>\n10-2N<\/sup><\/td>\n<\/tr>\n
\u6beb\u725b\u987f<\/td>\n\u6beb\u725b<\/td>\n10 -3N<\/sup><\/td>\n<\/tr>\n
\u5fae\u725b\u987f<\/td>\n\u00b5N<\/td>\n 10 -6N<\/sup><\/td>\n<\/tr>\n
\u7eb3\u7c73\u725b\u987f<\/td>\nnN<\/td>\n 10 -9N<\/sup><\/td>\n<\/tr>\n
\u76ae\u79d1\u725b\u987f<\/td>\nPN<\/td>\n 10 -12N<\/sup><\/td>\n<\/tr>\n
\u98de\u725b\u987f<\/td>\nfN<\/td>\n 10 -15N<\/sup><\/td>\n<\/tr>\n
\u963f\u6258\u725b\u987f<\/td>\n\u6709<\/td>\n10 -18N<\/sup><\/td>\n<\/tr>\n
\u6cfd\u666e\u6258\u725b\u987f<\/td>\n\u6c2e<\/td>\n10 -21<\/sup>\u5317<\/td>\n<\/tr>\n
\u7ea6\u514b\u6258\u725b\u987f<\/td>\n\u662f\u7684<\/td>\n10 -24N<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u5728\u6240\u6709\u7684\u500d\u6570\u548c\u7ea6\u6570\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u662f\u5343\u725b\u987f\u3001\u5146\u725b\u987f\u548c\u5fae\u725b\u987f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u725b\u987f\uff08\u5355\u4f4d\uff09\u3002\u60a8\u5c06\u627e\u5230\u725b\u987f\u7684\u5b9a\u4e49\u3001\u725b\u987f\u4e0e\u5176\u4ed6\u5355\u4f4d\u5236\u7684\u7b49\u4ef7\u5173\u7cfb\uff0c\u4ee5\u53ca\u725b\u987f\u7684\u500d\u6570\u548c\u7ea6\u6570\u3002 \u4ec0\u4e48\u662f\u725b …<\/p>\n

\u725b\u987f\uff08\u5355\u4f4d\uff09<\/span> \u67e5\u770b\u5168\u6587 »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-32","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"\n\u25b7 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