物理题（八年级普通竞赛试题） 八年级物理竞赛题
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\u3000\u3000\u70b9\u62e8\uff1a\u78c1\u4f53\u90fd\u6709\u4e14\u4ec5\u6709\u4e24\u4e2a\u78c1\u6781\u3002
\u3000\u3000\u4f8b5 \u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08 \uff09
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\u3000\u3000B\uff0e\u624b\u7535\u7b52\u5de5\u4f5c\u65f6\uff0c\u5728\u624b\u7535\u7b52\u91cc\u867d\u7136\u6709\u76f4\u6d41\u7535\u4f46\u7535\u6d41\u592a\u5c0f\uff0c\u56e0\u6b64\u5b83\u7684\u5468\u56f4\u4e5f\u6ca1\u6709\u78c1\u573a
\u3000\u3000C\uff0e\u5965\u65af\u7279\u5b9e\u9a8c\u53ea\u8bf4\u660e\u4e86\u901a\u7535\u76f4\u5bfc\u7ebf\u7684\u5468\u56f4\u624d\u6709\u78c1\u573a
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\u3000\u3000\u70b9\u62e8\uff1a\u672c\u9898\u65e2\u8fd0\u7528\u4e86\u78c1\u6781\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u53c8\u8fd0\u7528\u4e86\u901a\u7535\u87ba\u7ebf\u7ba1\u7535\u6d41\u4e0e\u78c1\u6781\u95f4\u7684\u5173\u7cfb\u3002
\u3000\u3000\u4f8b7 \u5982\u56fe6\u6240\u793a\uff0c\u5f53\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u5411\u53f3\u6ed1\u52a8\u65f6\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f\uff08 \uff09
\u3000\u3000A\uff0e\u793a\u6570\u53d8\u5c0f\uff0c\u7535\u538b\u8868\u793a\u6570\u53d8\u5927\uff0c\u7535\u78c1\u94c1\u78c1\u6027\u51cf\u5f31
\u3000\u3000B\uff0e\u7535\u6d41\u8868\u793a\u6570\u53d8\u5927\uff0c\u7535\u538b\u8868\u793a\u6570\u53d8\u5c0f\uff0c\u7535\u78c1\u94c1\u78c1\u6027\u589e\u5f3a
\u3000\u3000C\uff0e\u7535\u6d41\u8868\u793a\u6570\u53d8\u5c0f\uff0c\u7535\u538b\u8868\u793a\u6570\u53d8\u5c0f\uff0c\u7535\u78c1\u94c1\u78c1\u6027\u51cf\u5f31
\u3000\u3000D\uff0e\u7535\u6d41\u8868\u793a\u6570\u53d8\u5927\uff0c\u7535\u538b\u8868\u793a\u6570\u53d8\u5927\uff0c\u7535\u78c1\u94c1\u78c1\u6027\u589e\u5f3a
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a
\u3000\u30001\u3001\u5f04\u6e05\u7535\u8def\u8fde\u63a5\uff1a\u87ba\u7ebf\u7ba1\u531d\u6570\u591a\uff0c\u5bfc\u7ebf\u5f88\u957f\uff0c\u6545\u87ba\u7ebf\u7ba1\u6709\u4e00\u5b9a\u7684\u7535\u963b\uff0c\u8fd9\u4e00\u7535\u963b\u4e0e\u6ed1\u52a8\u53d8\u963b\u5668\u3001\u7535\u6d41\u8868\u3001\u7535\u6e90\u7ec4\u6210\u4e32\u8054\u7535\u8def\uff0c\u7535\u538b\u8868\u6d4b\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u7535\u538b\u3002
\u3000\u30002\u3001\u6b63\u786e\u8fd0\u7528\u6b27\u59c6\u5b9a\u5f8b\uff0c\u786e\u5b9a\u7535\u6d41\u53d8\u5316\u3002\u6ed1\u7247P\u5411\u53f3\u6ed1\u52a8\uff0c\u7535\u8def\u7684\u603b\u7535\u963b\u53d8\u5927\uff0c\u7535\u538b\u4e0d\u53d8\uff0c\u6545\u7535\u6d41\u8868\u793a\u6570\u53d8\u5c0f\uff1b\u87ba\u7ebf\u7ba1\u7684\u7535\u963b\u4e00\u5b9a\uff0c\u901a\u8fc7\u87ba\u7ebf\u7ba1\u7684\u7535\u6d41\u53d8\u5c0f\uff0c\u5b83\u5206\u5f97\u7684\u7535\u538b\u4e00\u5b9a\u53d8\u5c0f\u4e86\uff0c\u6545\u7535\u538b\u8868\u7684\u793a\u6570\u53d8\u5927\u3002
\u3000\u30003\u3001\u4f9d\u636e\u7535\u6d41\u53d8\u5316\u786e\u5b9a\u87ba\u7ebf\u7ba1\u78c1\u6027\u53d8\u5316\uff0c\u7535\u6d41\u53d8\u5c0f\uff0c\u78c1\u6027\u51cf\u5f31\u3002\u6545\u9009A\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u901a\u7535\u87ba\u7ebf\u7ba1\u7684\u78c1\u6027\u5f3a\u5f31\u4e0e\u7535\u6d41\u7684\u5927\u5c0f\u6709\u5173\uff0c\u7535\u6d41\u8d8a\u5927\uff0c\u901a\u7535\u87ba\u7ebf\u7ba1\u78c1\u6027\u8d8a\u5f3a\uff0c\u53cd\u4e4b\u8d8a\u5f31\u3002
\u3000\u3000\u4f8b8 \u56fe\u4e2d\u201c\u2299\u201d\u8868\u793a\u901a\u7535\u76f4\u5bfc\u7ebf\u6a2a\u622a\u9762\u4e0a\u7684\u7535\u6d41\u662f\u4ece\u7eb8\u91cc\u6d41\u5411\u7eb8\u5916\u7684\uff0c\u201c \u201d\u8868\u793a\u901a\u7535\u76f4\u5bfc\u7ebf\u6a2a\u622a\u9762\u4e0a\u7684\u7535\u6d41\u662f\u4ece\u7eb8\u5916\u6d41\u5411\u7eb8\u91cc\u7684\u3002\u6839\u636e\u56fe6\u7ed9\u51fa\u7684\u7535\u6d41\u65b9\u5411\u3001\u78c1\u611f\u7ebf\u65b9\u5411\u548c\u5bfc\u7ebf\u5728\u78c1\u573a\u4e2d\u7684\u53d7\u529b\u65b9\u5411\uff0c\u753b\u51fa\u56fe7\u4e2d\u7684\u5bfc\u7ebf\u53d7\u529b\u7684\u65b9\u5411\u3002
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a\u4f5c\u56fe8\uff0c\u4e0d\u96be\u6bd4\u8f83\u51fa\u56fe7\u7684\u53d7\u529b\u65b9\u5411\u4e3a\u5411\u4e0a\u3002
\u3000\u3000\u4f8b9 \u5982\u56fe\u6240\u793a\u7684\u7535\u52a8\u673a\uff0c\u5f53\u5f00\u5173\u95ed\u5408\u65f6\uff0c\u5173\u4e8e\u7ebf\u5708\u7684\u8fd0\u52a8\u60c5\u51b5\u53d9\u8ff0\u6b63\u786e\u7684\u662f\uff08 \uff09
\u3000\u3000A\uff0e\u9759\u6b62\u4e0d\u52a8
\u3000\u3000B\uff0e\u5c06\u987a\u65f6\u9488\u8f6c\u52a8
\u3000\u3000C\uff0e\u5c06\u9006\u65f6\u9488\u8f6c\u52a8
\u3000\u3000D\uff0e\u53ef\u80fd\u987a\u65f6\u9488\u8f6c\u52a8\uff0c\u4e5f\u53ef\u80fd\u9006\u65f6\u9488\u8f6c\u52a8
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a\u89c2\u5bdf\u56fe\u4e2d\u7ed9\u51fa\u7684\u6761\u4ef6\uff0c\u53d1\u73b0\u5904\u5728\u78c1\u573a\u4e2d\u7684\u7ebf\u5708\u6ca1\u6709\u5904\u5728\u5e73\u8861\u4f4d\u7f6e\u4e0a\uff0c\u53ea\u8981\u901a\u7535\uff0c\u5c31\u4f1a\u8f6c\u52a8\uff0c\u6545A\u4e0d\u6b63\u786e\u3002\u4ece\u56fe\u4e2d\u8fd8\u53ef\u4ee5\u770b\u51fa\uff0c\u5f00\u5173\u95ed\u5408\u540e\uff0c\u7ebf\u5708\u4e2d\u7535\u6d41\u7684\u65b9\u5411\u662f\u786e\u5b9a\u7684\uff0c\u4f46\u76f8\u5bf9\u7684\u4e24\u4e2a\u78c1\u6781\u6ca1\u6709\u6807\u660eN\u3001S\u6781\uff0c\u6240\u4ee5\u5b83\u4eec\u4e4b\u95f4\u7684\u78c1\u573a\u65b9\u5411\u5c31\u6709\u4e24\u79cd\u53ef\u80fd\uff0c\u6216\u662f\u6c34\u5e73\u5411\u53f3\uff0c\u6216\u662f\u6c34\u5e73\u5411\u5de6\uff0c\u56e0\u6b64\u7ebf\u5708\u7684\u8f6c\u52a8\u65b9\u5411\u5c31\u6709\u4e86\u4e24\u79cd\u53ef\u80fd\u3002\u6545B\u3001C\u90fd\u4e0d\u6b63\u786e\u3002\u672c\u9898\u5e94\u9009D\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u901a\u7535\u5bfc\u4f53\u5728\u78c1\u573a\u4e2d\u53d7\u529b\u7684\u65b9\u5411\u662f\u7531\u78c1\u573a\u65b9\u5411\u548c\u7535\u6d41\u7684\u65b9\u5411\u5171\u540c\u51b3\u5b9a\uff0c\u7f3a\u4e00\u4e0d\u53ef\u3002
\u3000\u3000\u4f8b10 \u4e24\u6839\u8f83\u957f\u7684\u76f4\u5bfc\u7ebf\u76f8\u8ddd\u5f88\u8fd1\u4e14\u76f8\u4e92\u5e73\u884c\uff0c\u5f53\u5b83\u4eec\u4e2d\u901a\u4ee5\u5f3a\u5ea6\u8f83\u5927\u65b9\u5411\u76f8\u53cd\u7684\u7535\u6d41\u65f6\uff0c\u4e24\u6839\u5bfc\u7ebf\u5c06\u4f1a\uff08 \uff09
\u3000\u3000A\uff0e\u9760\u8fd1
\u3000\u3000B\uff0e\u8fdc\u79bb
\u3000\u3000C\uff0e\u5373\u4e0d\u9760\u8fd1\u4e5f\u4e0d\u8fdc\u79bb
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a\u901a\u7535\u5bfc\u7ebf\u5468\u56f4\u7684\u78c1\u573a\u7528\u78c1\u611f\u7ebf\u6765\u63cf\u8ff0\u662f\u4ee5\u901a\u7535\u5bfc\u7ebf\u4e0a\u7684\u70b9\u4e3a\u5706\u5fc3\u7684\u540c\u5fc3\u5706\uff0c\u7528\u53f3\u624b\u63e1\u4f4f\u76f4\u5bfc\u7ebf\u7532\uff0c\u62c7\u6307\u6307\u5411\u7535\u6d41\u7684\u65b9\u5411\uff0c\u56db\u6307\u73af\u7ed5\u7684\u65b9\u5411\u5c31\u662f\u78c1\u573a\u7684\u65b9\u5411\uff0c\u8fd9\u6837\u5728\u7ad6\u76f4\u5256\u9762\u4e0a\u7532\u5bfc\u7ebf\u7684\u5de6\u4fa7\u78c1\u611f\u7ebf\u662f\u4ece\u7eb8\u91cc\u5411\u5916\u7684\uff0c\u7528\u201c•\u201d\u8868\u793a\uff0c\u7532\u5bfc\u7ebf\u7684\u53f3\u4fa7\u78c1\u611f\u7ebf\u662f\u4ece\u7eb8\u5916\u5411\u91cc\u7684\uff0c\u7528\u201c\u00d7\u201d\u8868\u793a\u3002\u4e59\u5bfc\u7ebf\u5c31\u6210\u4e86\u5904\u5728\u78c1\u573a\u91cc\u7684\u901a\u7535\u5bfc\u7ebf\uff0c\u4f38\u5c55\u5de6\u624b\uff0c\u4e14\u62c7\u6307\u4e0e\u56db\u6307\u5782\u76f4\uff0c\u8ba9\u7532\u5bfc\u7ebf\u5de6\u4fa7\u7684\u78c1\u611f\u7ebf\u5782\u76f4\u7a7f\u8fc7\u624b\u5fc3\uff0c\u56db\u6307\u6307\u5411\u4e59\u5bfc\u7ebf\u7684\u7535\u6d41\u65b9\u5411\uff0c\u62c7\u6307\u6240\u6307\u7684\u5411\u5de6\u7684\u65b9\u5411\u5c31\u662f\u4e59\u5bfc\u7ebf\u7684\u53d7\u529b\u65b9\u5411\uff0c\u6545\u9009B\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u4e24\u6839\u901a\u7535\u5bfc\u7ebf\u7684\u4f5c\u7528\u662f\u901a\u8fc7\u78c1\u573a\u53d1\u751f\u7684\uff0c\u5373\u5b83\u4eec\u5f7c\u6b64\u5904\u5728\u5bf9\u65b9\u7684\u78c1\u573a\u4e2d\uff0c\u8fd0\u7528\u78c1\u573a\u5bf9\u7535\u6d41\u7684\u4f5c\u7528\u5c31\u53ef\u4ee5\u5224\u65ad\u5b83\u4eec\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u5173\u7cfb\u3002
\u3000\u3000\u4f8b11 \u5982\u56fe\u6240\u793a\uff0c\u201c \u201d\u8868\u793a\u95ed\u5408\u7535\u8def\u7684\u4e00\u90e8\u5206\u5bfc\u4f53\u7684\u6a2a\u622a\u9762\uff0c\u7bad\u5934\u8868\u793a\u8fd0\u52a8\u65b9\u5411\uff0c\u201c\u00d7\u00d7\u201d\u8868\u793a\u78c1\u611f\u7ebf\u65b9\u5411\u5782\u76f4\u4e8e\u7eb8\u9762\u5411\u91cc\uff0c\u5728\u5404\u56fe\u4e2d\u4e0d\u80fd\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u7684\u662f\uff08 \uff09
A B C D
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1aA\u9009\u9879\u4e2d\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u662f\u4ece\u5de6\u5411\u53f3\uff0c\u5bfc\u4f53\u5782\u76f4\u7eb8\u9762\u4e14\u4ece\u4e0a\u5411\u4e0b\u8fd0\u52a8\uff0c\u4e00\u5b9a\u5207\u5272\u78c1\u611f\u7ebf\uff0c\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u3002
\u3000\u3000B\u9009\u9879\u4e2d\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u662f\u4ece\u5de6\u5411\u53f3\uff0c\u5bfc\u4f53\u6cbf\u7740\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u8fd0\u52a8\uff0c\u4e0d\u80fd\u5207\u5272\u78c1\u611f\u7ebf\uff0c\u4e0d\u80fd\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u3002
\u3000\u3000C\u9009\u9879\u4e2d\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u662f\u4ece\u4e0a\u5411\u4e0b\u7684\uff0c\u5bfc\u4f53\u867d\u7136\u9759\u6b62\u4e0d\u52a8\uff0c\u4f46\u78c1\u4f53\u5411\u53f3\u8fd0\u52a8\uff0c\u78c1\u611f\u7ebf\u5c31\u5411\u53f3\u8fd0\u52a8\uff0c\u78c1\u611f\u7ebf\u7ecf\u8fc7\u4e0e\u4e4b\u76f8\u5782\u76f4\u7684\u5bfc\u4f53\u4e5f\u5c31\u4f1a\u88ab\u5207\u5272\uff0c\u5bfc\u4f53\u4e2d\u5c31\u4f1a\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u3002
\u3000\u3000D\u9009\u9879\u4e2d\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u4e0e\u5bfc\u4f53\u76f8\u5e73\u884c\uff0c\u5bfc\u4f53\u6cbf\u56fe\u793a\u65b9\u5411\u8fd0\u52a8\uff0c\u4e0d\u4f1a\u5207\u5272\u78c1\u611f\u7ebf\uff0c\u5bfc\u4f53\u4e2d\u4e0d\u4f1a\u4ea7\u751f\u7535\u6d41\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u80fd\u5426\u5728\u7535\u8def\u4e2d\u4ea7\u751f\u611f\u5e94\u7535\u6d41\uff0c\u4e3b\u8981\u770b\u5177\u5907\u4e86\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u7684\u6761\u4ef6\u6ca1\u6709\u3002
\u3000\u3000\u4f8b12 \u5173\u4e8e\u53d1\u7535\u673a\u7684\u53d9\u8ff0\u6b63\u786e\u7684\u662f\uff08 \uff09
\u3000\u3000A\uff0e\u7ebf\u5708\u4e2d\u4ea7\u751f\u4ea4\u6d41\u7535\uff0c\u5411\u5916\u8f93\u51fa\u7684\u662f\u76f4\u6d41\u7535\u7684\u53d1\u7535\u673a\u662f\u76f4\u6d41\u53d1\u7535\u673a
\u3000\u3000B\uff0e\u7ebf\u5708\u4e2d\u4ea7\u751f\u4ea4\u6d41\u7535\uff0c\u5411\u5916\u8f93\u51fa\u76f4\u6d41\u7535\u7684\u53d1\u7535\u673a\u662f\u4ea4\u6d41\u53d1\u7535\u673a
\u3000\u3000C\uff0e\u7ebf\u5708\u4e2d\u4ea7\u751f\u76f4\u6d41\u7535\uff0c\u4f9b\u7ed9\u5916\u7535\u8def\u7684\u662f\u4ea4\u6d41\u7535\u7684\u53d1\u7535\u673a\u662f\u4ea4\u6d41\u53d1\u7535\u673a
\u3000\u3000D\uff0e\u7ebf\u5708\u4e2d\u4ea7\u751f\u4ea4\u6d41\u7535\uff0c\u5411\u5916\u8f93\u51fa\u7684\u662f\u4ea4\u6d41\u7535\u7684\u53d1\u7535\u673a\u662f\u4ea4\u6d41\u53d1\u7535\u673a
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a\u53d1\u7535\u673a\u7ebf\u5708\u5728\u6bcf\u4e00\u5468\u7684\u65cb\u8f6c\u4e2d\uff0c\u524d\u534a\u5468\u4e0e\u540e\u534a\u5468\u5207\u5272\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u76f8\u53cd\uff0c\u7ebf\u5708\u4e2d\u4ea7\u751f\u7684\u611f\u5e94\u7535\u6d41\u65b9\u5411\u4e5f\u76f8\u53cd\uff0c\u56e0\u6b64\u5728\u7ebf\u5708\u8fde\u7eed\u8f6c\u52a8\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7ebf\u5708\u4e2d\u7535\u6d41\u7684\u65b9\u5411\u5c31\u4f1a\u5468\u671f\u6027\u5730\u6539\u53d8\uff0c\u5373\u53d1\u7535\u673a\u7ebf\u5708\u4e2d\u4ea7\u751f\u7684\u7535\u6d41\u59cb\u7ec8\u662f\u4ea4\u6d41\u7535\u3002
\u3000\u3000\u53d1\u7535\u673a\u7ebf\u5708\u5728\u6bcf\u4e00\u5468\u7684\u65cb\u8f6c\u4e2d\uff0c\u524d\u534a\u5468\u4e0e\u540e\u534a\u5468\u5207\u5272\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u76f8\u53cd\uff0c\u7ebf\u5708\u4e2d\u4ea7\u751f\u7684\u611f\u5e94\u7535\u6d41\u65b9\u5411\u4e5f\u76f8\u53cd\uff0c\u56e0\u6b64\u5728\u7ebf\u5708\u8fde\u7eed\u8f6c\u52a8\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7ebf\u5708\u4e2d\u7535\u6d41\u7684\u65b9\u5411\u5c31\u4f1a\u5468\u671f\u6027\u5730\u6539\u53d8\uff0c\u5373\u53d1\u7535\u673a\u7ebf\u5708\u4e2d\u4ea7\u751f\u7684\u7535\u6d41\u59cb\u7ec8\u662f\u4ea4\u6d41\u7535\u3002
\u3000\u3000\u53d1\u7535\u673a\u662f\u4ea4\u6d41\u53d1\u7535\u673a\uff0c\u8fd8\u662f\u76f4\u6d41\u53d1\u7535\u673a\uff0c\u51b3\u5b9a\u4e8e\u7ebf\u5708\u4e24\u7aef\u5b89\u88c5\u7684\u662f\u94dc\u73af\uff0c\u8fd8\u662f\u534a\u73af\uff08\u6362\u5411\u5668\uff09\u3002\u901a\u8fc7\u94dc\u73af\u5411\u5916\u7535\u8def\u8f93\u7535\uff0c\u7535\u5237\u4e0e\u7ebf\u5708\u7684\u4e24\u7aef\u4e0d\u4f1a\u4ea4\u66ff\u63a5\u89e6\uff0c\u5916\u7535\u8def\u7684\u7535\u6d41\u4e0e\u7ebf\u5708\u4e2d\u4ea7\u751f\u7684\u7535\u6d41\u65b9\u5411\u59cb\u7ec8\u4e00\u81f4\uff0c\u5373\u5916\u7535\u8def\u4e2d\u4e5f\u662f\u4ea4\u6d41\u7535\uff0c\u8fd9\u5c31\u662f\u4ea4\u6d41\u53d1\u7535\u673a\u3002\u901a\u8fc7\u534a\u73af\u5411\u5916\u7535\u8def\u8f93\u7535\uff0c\u7535\u5237\u4e0e\u7ebf\u5708\u7684\u4e24\u7aef\u4ea4\u66ff\u63a5\u89e6\uff0c\u5916\u7535\u8def\u4e2d\u7684\u7535\u6d41\u65b9\u5411\u5c31\u4fdd\u6301\u4e0d\u53d8\uff0c\u8fd9\u5c31\u662f\u76f4\u6d41\u53d1\u7535\u673a\u3002\u672c\u9898\u5e94\u9009A\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u53d1\u7535\u673a\u7ebf\u5708\u4e2d\u4ea7\u751f\u4ea4\u6d41\u7535\uff0c\u7528\u6ed1\u73af\u8f93\u51fa\uff0c\u5916\u7535\u8def\u662f\u4ea4\u6d41\u7535\uff0c\u7528\u6362\u5411\u5668\u8f93\u51fa\uff0c\u5219\u4e3a\u76f4\u6d41\u7535
\u3000\u3000\u4f8b13 \u7ebf\u5708\u5728\u78c1\u573a\u4e2d\u7684\u521d\u59cb\u4f4d\u7f6e\u5982\u56fe\u6240\u793a\u3002\u82e5\u8ba9\u7ebf\u5708\u9006\u65f6\u9488\u8f6c\u52a8\uff0c\u8fd9\u65f6\u5916\u7535\u8def\u7684\u7535\u6d41\u65b9\u5411\u662f \u3002\u82e5\u4f7f\u5916\u7535\u8def\u7684\u7535\u6d41\u65b9\u5411\u6539\u53d8\uff0c\u53ef\u91c7\u53d6\u7684\u65b9\u6cd5\u6709\uff1a \u3001 \u3002
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a
\u3000\u3000\u786e\u5b9a\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u2500\u2500\u6c34\u5e73\u5411\u53f3\u3002
\u3000\u3000\u786e\u5b9a\u5bfc\u4f53\u5207\u5272\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u2500\u2500ab\u8fb9\u5411\u4e0b\u5207\u5272\u78c1\u611f\u7ebf\uff0ccd\u8fb9\u5411\u4e0a\u5207\u5272\u78c1\u611f\u7ebf\u3002
\u3000\u3000\u8fd0\u7528\u53f3\u624b\u5b9a\u5219\u786e\u5b9a\u2500\u2500\u7ebf\u5708\u5185\u611f\u5e94\u7535\u6d41\u7684\u65b9\u5411\u662f\u7531d\u7ecfc\u3001b\u3001\u5230a\uff0c\u518d\u6d41\u5411\u7535\u5237A\uff0c\u6240\u4ee5\u5916\u7535\u8def\u7684\u7535\u6d41\u65b9\u5411\u662f\u4eceA\u7ecfL\u5230B\u3002\u5f53\u7ebf\u5708\u8f6c\u8fc7\u4e0e\u78c1\u611f\u7ebf\u5782\u76f4\u7684\u4f4d\u7f6e\u540e\uff0c\u7535\u5237A\u5c06\u63a5\u89e6cd\u8fb9\u7684\u534a\u73af\uff0c\u7535\u5237B\u5c06\u63a5\u89e6ab\u8fb9\u7684\u534a\u73af\uff0cab\u8fb9\u5411\u4e0a\u5207\u5272\u78c1\u611f\u7ebf\uff0ccd\u8fb9\u5411\u4e0b\u5207\u5272\u78c1\u611f\u7ebf\uff0c\u7ebf\u5708\u5185\u611f\u5e94\u7535\u6d41\u7684\u65b9\u5411\u662f\u7531a\u7ecfb\u3001c\u3001\u5230d\uff0c\u7531d\u6d41\u5411\u7535\u5237A\uff0c\u6240\u4ee5\u5916\u7535\u8def\u7684\u7535\u6d41\u65b9\u5411\u8fd8\u662f\u4eceA\u7ecfL\u5230B\u3002\uff08\u8fd9\u5c31\u662f\u76f4\u6d41\u53d1\u7535\u673a\u7684\u5de5\u4f5c\u8fc7\u7a0b\uff09
\u3000\u3000\u4f7f\u5916\u7535\u8def\u4e2d\u7684\u7535\u6d41\u65b9\u5411\u6539\u53d8\uff0c\u53ea\u6539\u53d8\u7ebf\u5708\u7684\u8f6c\u52a8\u65b9\u5411\u6216\u78c1\u611f\u7ebf\u7684\u65b9\u5411\u5373\u53ef\u3002\u56e0\u6b64\u5177\u4f53\u7684\u65b9\u6cd5\u662f\uff1a\u4f7f\u7ebf\u5708\u987a\u65f6\u9488\u8f6c\u52a8\u3001\u5bf9\u6362\u78c1\u6781\u7684\u4f4d\u7f6e\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u5bf9\u53d1\u7535\u673a\u6a21\u578b\u8fdb\u884c\u5206\u6790\u662f\u6211\u4eec\u5e94\u638c\u63e1\u7684\u4e00\u9879\u57fa\u672c\u6280\u80fd\u3002
\u3000\u3000\u4f8b14 \u5982\u56fe\u6240\u793a\uff0c\u8fde\u6709\u7535\u6d41\u8868\u7684\u5bfc\u8f68\u5904\u5728\u78c1\u573a\u4e2d\uff0c\u88f8\u5bfc\u7ebf\u6cbf\u5bfc\u8f68\u5411\u53f3\u505a\u5207\u5272\u78c1\u611f\u7ebf\u7684\u8fd0\u52a8\u65f6\uff0c\u4e24\u4e2a\u7535\u6d41\u8868\u90fd\u6709\u793a\u6570\u5417\uff1f
\u3000\u3000\u89e3\u9898\u601d\u8def\uff1a\u5c06\u88f8\u5bfc\u7ebf\u770b\u6210\u5e76\u8054\u7535\u8def\u7684\u5e72\u8def\uff0c\u4e24\u4e2a\u7535\u6d41\u8868\u5904\u5728\u652f\u8def\u4e2d\u3002
\u3000\u3000\u95ed\u5408\u7535\u8def\u7684\u5e72\u8def\u5bfc\u4f53\u505a\u5207\u5272\u78c1\u611f\u7ebf\u7684\u8fd0\u52a8\uff0c\u8fd9\u4e2a\u5bfc\u4f53\u4e2d\u5c31\u4f1a\u6709\u611f\u5e94\u7535\u6d41\uff0c\u5219\u652f\u8def\u4e2d\u7684\u7535\u6d41\u8868\u4e00\u5b9a\u6709\u7535\u6d41\u901a\u8fc7\u3002
\u3000\u3000\u70b9\u62e8\uff1a\u672c\u9898\u8003\u67e5\u7684\u662f\u4ea7\u751f\u611f\u5e94\u7535\u6d41\u7684\u6761\u4ef6\uff0c\u548c\u7535\u8def\u4e2d\u5f62\u6210\u6301\u7eed\u7535\u6d41
\u682a\u6d32\u5e022007\u5e74\u201c\u957f\u9e3f\u676f\u201d\u521d\u4e2d\u7269\u7406\u7ade\u8d5b\u8bd5\u9898\uff08\u516b\u5e74\u7ea7\uff09
\u4e00\u3001\u9009\u62e9\u9898 \u4ee5\u4e0b\u5404\u5c0f\u9898\u7ed9\u51fa\u7684\u56db\u4e2a\u9009\u9879\u4e2d,\u53ea\u6709\u4e00\u4e2a\u662f\u6b63\u786e\u7684,\u628a\u6b63\u786e\u9009\u9879\u524d\u7684\u5b57\u6bcd\u586b\u5728\u9898\u540e\u7684\u62ec\u53f7\u5185(\u6bcf\u5c0f\u98983\u5206,\u517136\u5206)\u3002
1.\u4e00\u573a\u5927\u96ea\u8fc7\u540e,\u4eba\u4eec\u4f1a\u611f\u5230\u5916\u9762\u4e07\u7c41\u4ff1\u9759.\u5176\u4e3b\u8981\u539f\u56e0\u662f ( )
A. \u5927\u96ea\u540e,\u884c\u9a76\u7684\u8f66\u8f86\u51cf\u5c11,\u566a\u58f0\u51cf\u5c0f B. \u5927\u96ea\u84ec\u677e\u4e14\u591a\u5b54,\u5bf9\u566a\u58f0\u6709\u5438\u6536\u4f5c\u7528
C. \u5927\u96ea\u540e,\u5927\u5730\u94f6\u88c5\u7d20\u88f9,\u566a\u58f0\u88ab\u53cd\u5c04 D. \u5927\u96ea\u540e,\u6c14\u6e29\u8f83\u4f4e,\u566a\u58f0\u4f20\u64ad\u901f\u5ea6\u53d8\u6162
2.\u7535\u89c6\u673a\u7684\u5f00\u542f\u5173\u95ed\u53ca\u9891\u9053\u9009\u62e9\u53ef\u4ee5\u901a\u8fc7\u9065\u63a7\u5668\u5b9e\u73b0. \u9065\u63a7\u5668\u7528\u6765\u63a7\u5236\u7535\u89c6\u673a\u7684\u662f( )
A.\u7ea2\u5149 B.\u7ea2\u5916\u7ebf C.\u7d2b\u5149 D.\u7d2b\u5916\u7ebf
3.\u84dd\u5929\u4e0a\u98d8\u7740\u767d\u4e91,\u5e73\u9759\u6e05\u6f88\u7684\u6c60\u5858\u4e2d\u9c7c\u5728\u81ea\u7531\u6e38\u52a8.\u4eba\u5411\u6c60\u5858\u4e2d\u770b\u53bb,\u597d\u50cf\u9c7c\u5728\u767d\u4e91\u4e2d\u6e38\u52a8.\u5173\u4e8e\u4eba\u89c2\u5bdf\u5230\u7684\u9c7c\u548c\u767d\u4e91,\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f ( )
A. \u9c7c\u662f\u5b9e\u7269,\u767d\u4e91\u662f\u5149\u7684\u53cd\u5c04\u5f62\u6210\u7684\u865a\u50cf
B. \u9c7c\u548c\u767d\u4e91\u90fd\u662f\u5149\u7684\u53cd\u5c04\u5f62\u6210\u7684\u865a\u50cf
C. \u9c7c\u662f\u5b9e\u7269,\u767d\u4e91\u662f\u5149\u7684\u6298\u5c04\u5f62\u6210\u7684\u865a\u50cf
D. \u9c7c\u548c\u767d\u4e91\u5206\u522b\u662f\u5149\u7684\u6298\u5c04\u548c\u53cd\u5c04\u5f62\u6210\u7684\u865a\u50cf
4.\u767d\u70bd\u706f\u6ce1\u7684\u706f\u4e1d\u5e38\u5236\u6210\u87ba\u65cb\u72b6,\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f ( )
A.\u5c3d\u91cf\u51cf\u5c0f\u706f\u4e1d\u7684\u7535\u963b B.\u4fbf\u4e8e\u706f\u4e1d\u6563\u70ed,\u9632\u6b62\u706f\u4e1d\u7194\u65ad
C.\u51cf\u5c11\u706f\u4e1d\u6563\u70ed,\u63d0\u9ad8\u706f\u4e1d\u7684\u6e29\u5ea6 D.\u51cf\u5c11\u706f\u4e1d\u5728\u9ad8\u6e29\u65f6\u7684\u5347\u534e
5.\u82e5\u5728\u52a0\u70ed\u4e86\u7684\u6cb9\u9505\u4e2d\u6ef4\u5165\u4e00\u6ef4\u6c34,\u4f1a\u6709\u5267\u70c8\u7684\u54cd\u58f0,\u5e76\u6e85\u8d77\u6cb9\u6765.\u5176\u4e3b\u8981\u539f\u56e0\u662f( )
A.\u6c34\u7684\u6cb8\u70b9\u6bd4\u6cb9\u7684\u6cb8\u70b9\u4f4e B.\u6c34\u662f\u70ed\u7684\u4e0d\u826f\u5bfc\u4f53
C.\u6c34\u6ef4\u6e29\u5ea6\u592a\u4f4e D.\u6c34\u7684\u6bd4\u70ed\u5bb9\u6bd4\u6cb9\u7684\u6bd4\u70ed\u5bb9\u5927
6.\u843d\u5728\u9ad8\u538b\u7ebf\u4e0a\u7684\u9e1f\u513f\u4e0d\u4f1a\u89e6\u7535\u6b7b\u4ea1,\u8fd9\u662f\u56e0\u4e3a ( )
A.\u9ad8\u538b\u7ebf\u4e0a\u88f9\u6709\u7edd\u7f18\u5c42 B.\u9e1f\u722a\u4e0a\u7684\u89d2\u8d28\u5c42\u662f\u7edd\u7f18\u7684
C.\u9e1f\u722a\u95f4\u7684\u7535\u538b\u51e0\u4e4e\u4e3a\u96f6 D.\u9e1f\u513f\u6709\u8f83\u5f3a\u7684\u6297\u9ad8\u538b\u80fd\u529b
7.\u591a\u6cb9\u7684\u83dc\u6c64\u4e0d\u6613\u51b7\u5374, \u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a ( )
A. \u6cb9\u5c42\u8986\u76d6\u5728\u6c64\u9762, \u963b\u788d\u4e86\u6c34\u7684\u84b8\u53d1 B. \u6cb9\u7684\u5bfc\u70ed\u80fd\u529b\u6bd4\u6c34\u5dee
C. \u6cb9\u5c42\u548c\u6c64\u4e2d\u7684\u6c34\u4e0d\u6613\u53d1\u751f\u70ed\u4ea4\u6362 D. \u6cb9\u5c42\u963b\u788d\u4e86\u6c64\u7684\u8f90\u5c04
8.\u7535\u89c6\u673a\u7684\u8367\u5149\u5c4f\u8868\u9762\u7ecf\u5e38\u6709\u8bb8\u591a\u7070\u5c18, \u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a ( )
A. \u7070\u5c18\u7684\u81ea\u7136\u5806\u79ef
B. \u8367\u5149\u5c4f\u6709\u8f83\u5f3a\u7684\u5438\u9644\u7070\u5c18\u7684\u80fd\u529b
C. \u7535\u89c6\u673a\u5de5\u4f5c\u65f6\uff0c\u5c4f\u8868\u9762\u6709\u9759\u7535\u800c\u5438\u9644\u7070\u5c18
D. \u7535\u89c6\u673a\u5de5\u4f5c\u65f6\uff0c\u5c4f\u8868\u9762\u6e29\u5ea6\u8f83\u9ad8\u800c\u5438\u9644\u7070\u5c18
9.\u6210\u8bed\u201c\u767d\u7eb8\u9ed1\u5b57\u201d\u55bb\u6307\u8bc1\u636e\u786e\u51ff\uff0c\u4e0d\u5bb9\u62b5\u8d56\u548c\u5426\u8ba4\u3002\u4ece\u7269\u7406\u5b66\u89d2\u5ea6\u770b ( )
A. \u9ed1\u5b57\u6bd4\u767d\u7eb8\u53cd\u5c04\u5149\u7684\u672c\u9886\u5f3a
B. \u767d\u7eb8\u548c\u9ed1\u5b57\u5206\u522b\u53d1\u51fa\u4e0d\u540c\u989c\u8272\u7684\u5149\u8fdb\u5165\u773c\u775b
C. \u767d\u7eb8\u548c\u9ed1\u5b57\u5206\u522b\u53cd\u5c04\u51fa\u767d\u5149\u548c\u9ed1\u5149\u8fdb\u5165\u773c\u775b
D. \u767d\u7eb8\u53cd\u5c04\u51fa\u767d\u5149\u8fdb\u5165\u773c\u775b,\u800c\u9ed1\u5b57\u4e0d\u53cd\u5149
10.\u5bf9\u9505\u52a0\u70ed,\u9505\u5185\u7684\u6c34\u6301\u7eed\u6cb8\u817e\u65f6,\u6c34\u9762\u4e0a\u7684\u767d\u6c14\u5e76\u4e0d\u660e\u663e.\u5982\u679c\u7a81\u7136\u505c\u6b62\u52a0\u70ed,\u6c34\u9762\u4e0a\u5f88\u5feb\u51fa\u73b0\u8bb8\u591a\u767d\u6c14.\u8fd9\u662f\u56e0\u4e3a ( )
A. \u6cb8\u817e\u65f6\u6c34\u4e0d\u84b8\u53d1
B. \u505c\u706b\u540e\u6c34\u5f00\u59cb\u5927\u91cf\u84b8\u53d1
C. \u6cb8\u817e\u65f6\u6c34\u9762\u4e0a\u7684\u84b8\u6c14\u6e29\u5ea6\u9ad8\u4e8e100\u2103
D. \u505c\u706b\u540e\u6c34\u9762\u4e0a\u65b9\u7684\u6e29\u5ea6\u660e\u663e\u4f4e\u4e8e\u6c34\u84b8\u6c14\u7684\u6e29\u5ea6,\u5927\u91cf\u6c34\u84b8\u6c14\u6db2\u5316\u4e3a\u7ec6\u5c0f\u7684\u6c34\u73e0,\u5f62\u6210\u767d\u6c14
11\uff0e\u6709\u4e00\u79cd\u7528\u6765\u53d6\u6696\u7684\u70ed\u6c34\u888b\uff0c\u5b83\u7684\u8868\u9762\u6709\u8bb8\u591a\u957f\u6761\u72b6\u7684\u6a61\u80f6\u7a81\u8d77\u90e8\u5206\uff0c\u8fd9\u4e9b\u7a81\u8d77\u90e8\u5206\u76f8\u4e92\u5e73\u884c\u4e14\u7a81\u8d77\u7684\u9ad8\u5ea6\u8f83\u5927\uff08\u5982\u56fe1\u6240\u793a\uff09\uff0c\u4f5c\u6210\u8fd9\u79cd\u5916\u5f62\u7684\u4e3b\u8981\u76ee\u7684\u662f ( )
A\uff0e\u4f7f\u70ed\u6c34\u888b\u7f8e\u89c2\u5927\u65b9\uff0c\u8d77\u5230\u88c5\u9970\u4f5c\u7528
B\uff0e\u4f7f\u70ed\u6c34\u888b\u80fd\u540c\u65f6\u5177\u6709\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u7684\u4f20\u70ed\u529f\u80fd
C\uff0e\u51cf\u5c0f\u70ed\u6c34\u888b\u4e0e\u4eba\u4f53\u7684\u76f4\u63a5\u63a5\u89e6\u9762\u79ef\uff0c\u4ee5\u964d\u4f4e\u70ed\u6c34\u888b
\u7684\u653e\u70ed\u901f\u5ea6\uff0c\u5b9e\u73b0\u7f13\u6162\u653e\u70ed
D\uff0e\u8fd9\u79cd\u7a81\u8d77\u5177\u6709\u826f\u597d\u7684\u5f39\u6027\uff0c\u5728\u5916\u754c\u538b\u529b\u4f5c\u7528\u4e0b\u5bb9\u6613\u53d1\u751f\u5f39\u6027\u5f62\u53d8\uff0c\u4ee5\u9632\u6b62\u5728\u67d0\u79cd\u91cd\u538b\u4e0b\uff0c\u888b\u5185\u70ed\u6c34\u5c06\u70ed\u6c34\u888b\u80c0\u7834
12.\u852c\u83dc\u52a0\u5de5\u4f01\u4e1a\u4e3a\u4e86\u907f\u514d\u852c\u83dc\u5728\u957f\u9014\u8fd0\u8f93\u3001\u8d2e\u5b58\u7b49\u73af\u8282\u4e2d\u8150\u70c2\u53d8\u8d28\u53ca\u9ad8\u6e29\u6740\u83cc\u65f6\u5bf9\u852c\u83dc\u8425\u517b\u6210\u5206\u7684\u7834\u574f\uff0c\u5e38\u5e38\u5bf9\u852c\u83dc\u8fdb\u884c\u771f\u7a7a\u8131\u6c34\uff0c\u4f7f\u4e4b\u6210\u4e3a\u8131\u6c34\u852c\u83dc\u3002\u4ece\u7269\u7406\u5b66\u7684\u89d2\u5ea6\u770b\uff0c\u771f\u7a7a\u8131\u6c34\u7684\u9053\u7406\u662f ( )
A\uff0e\u771f\u7a7a\u73af\u5883\u7684\u6c14\u538b\u5f88\u4f4e\uff0c\u56e0\u800c\u5927\u5927\u964d\u4f4e\u4e86\u6c34\u7684\u6cb8\u70b9\uff0c\u4f7f\u852c\u83dc\u4e2d\u7684\u6c34\u5206\u8fc5\u901f\u6c7d\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u8131\u6c34
B\uff0e\u771f\u7a7a\u73af\u5883\u7684\u6e29\u5ea6\u5f88\u9ad8\uff0c\u53ef\u4f7f\u852c\u83dc\u4e2d\u7684\u6c34\u5206\u5728\u77ed\u65f6\u95f4\u5185\u8fc5\u901f\u6c7d\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u8131\u6c34
C\uff0e\u771f\u7a7a\u73af\u5883\u7684\u7a7a\u6c14\u5bc6\u5ea6\u5f88\u5c0f\uff0c\u53ef\u8fc5\u901f\u63d0\u9ad8\u852c\u83dc\u4e2d\u6c34\u5206\u5b50\u7684\u8fd0\u52a8\u901f\u5ea6\uff0c\u4ece\u800c\u5b9e\u73b0\u8131\u6c34
D\uff0e\u771f\u7a7a\u73af\u5883\u7684\u6e29\u5ea6\u6781\u4f4e\uff0c\u53ef\u4f7f\u852c\u83dc\u4e2d\u7684\u6c34\u5206\u8fc5\u901f\u51dd\u56fa\u5e76\u5347\u534e\uff0c\u4ece\u800c\u5b9e\u73b0\u8131\u6c34
\u7b54\u6848\uff1a1\uff0eB 2\uff0eB 3\uff0eD 4\uff0eC 5\uff0eA 6\uff0eC 7\uff0eA 8\uff0eC 9\uff0eD 10\uff0eD 11\uff0eC 12\uff0eA \u795d\u4f60\u597d\u8fd0
石块所受的浮力等于水的密度乘石块的体积再乘g.
F=ρvg=1000×100×0.000001×10=1(N)
(2)容器的底面积等于石块的体积除以石块放进容器以后水面上升的高度。
S=100÷(12－10)=50c㎡=0.005（㎡）
水的体积等于容器的底面积S乘以水的深度（石块未放入时的深度）。
V=50×10=500(立方厘米)= 0.0005(立方米)
水的重量G等于水的密度乘以水的体积再乘以g。
G=1000×0.0005×10=5(N)
(3)由于容器的重力忽略不计，故容器对水平地面的压强完全由水的重力产 生，等于水的重力除以容器底面积。 P=5÷0.005=1000（Pa)
(1)V浮=水密度*V排*g=1.0*10^3kg/m^3*100*10^-6m^3*10N/kg=1N;
(2)S容器=100cm^3/2cm=50cm^2
G水=mg=0.1m*50*10^-4m^2*10N/kg*10^3kg/m^3=5N;
(3)p=密度*g*h=10^3KG/m^3*10N/KG*0.12m=1200Pa
这道题之前有人已经提过了，
不知道为什么我帖链接不行
1 F浮=p水*V排*g=1.0*10^3kg/m^3*100*10^-6m^3*10N/kg=1N;
2 G水=p水gV水=1*10^3kg/m^3*10N/kg*50*10^-6m^3=5N;
3 S=100cm^3/2cm=50cm^2
P压强=（G水+G石）/S=（5+3）N/50cm^2=1600Pa
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