高一必修一物理公式
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3.\u6709\u7528\u63a8\u8bbaVt²-Vo²\uff1d2as
4.\u5e73\u5747\u901f\u5ea6V\u5e73\uff1ds/t\uff08\u5b9a\u4e49\u5f0f\uff09
5.\u4e2d\u95f4\u65f6\u523b\u901f\u5ea6Vt/2\uff1dV\u5e73\uff1d(Vt+Vo)/2
6.\u4e2d\u95f4\u4f4d\u7f6e\u901f\u5ea6Vs/2\uff1d\u221a[(Vo²+Vt²)/2]
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8.\u5b9e\u9a8c\u7528\u63a8\u8bba\u0394s\uff1daT²\uff5b\u0394s\u4e3a\u8fde\u7eed\u76f8\u90bb\u76f8\u7b49\u65f6\u95f4(T)\u5185\u4f4d\u79fb\u4e4b\u5dee\uff5d
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5.\u5f80\u8fd4\u65f6\u95f4t\uff1d2Vo/g \uff08\u4ece\u629b\u51fa\u843d\u56de\u539f\u4f4d\u7f6e\u7684\u65f6\u95f4\uff09
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(1)\u5e38\u89c1\u7684\u529b
1.\u91cd\u529bG\uff1dmg \uff08\u65b9\u5411\u7ad6\u76f4\u5411\u4e0b\uff0cg\uff1d9.8m/s2\u224810m/s2\uff0c\u4f5c\u7528\u70b9\u5728\u91cd\u5fc3\uff0c\u9002\u7528\u4e8e\u5730\u7403\u8868\u9762\u9644\u8fd1\uff09
2.\u80e1\u514b\u5b9a\u5f8bF\uff1dkx \uff5b\u65b9\u5411\u6cbf\u6062\u590d\u5f62\u53d8\u65b9\u5411\uff0ck\uff1a\u52b2\u5ea6\u7cfb\u6570(N/m)\uff0cx\uff1a\u5f62\u53d8\u91cf(m)\uff5d
3.\u6ed1\u52a8\u6469\u64e6\u529bF\uff1d\u03bcFN \uff5b\u4e0e\u7269\u4f53\u76f8\u5bf9\u8fd0\u52a8\u65b9\u5411\u76f8\u53cd\uff0c\u03bc\uff1a\u6469\u64e6\u56e0\u6570\uff0cFN\uff1a\u6b63\u538b\u529b(N)\uff5d
4.\u9759\u6469\u64e6\u529b0\u2264f\u9759\u2264fm \uff08\u4e0e\u7269\u4f53\u76f8\u5bf9\u8fd0\u52a8\u8d8b\u52bf\u65b9\u5411\u76f8\u53cd\uff0cfm\u4e3a\u6700\u5927\u9759\u6469\u64e6\u529b\uff09
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6.\u9759\u7535\u529bF\uff1dkQ1Q2/r2 \uff08k\uff1d9.0\u00d7109N?m2/C2,\u65b9\u5411\u5728\u5b83\u4eec\u7684\u8fde\u7ebf\u4e0a\uff09
7.\u7535\u573a\u529bF\uff1dEq \uff08E\uff1a\u573a\u5f3aN/C\uff0cq\uff1a\u7535\u91cfC\uff0c\u6b63\u7535\u8377\u53d7\u7684\u7535\u573a\u529b\u4e0e\u573a\u5f3a\u65b9\u5411\u76f8\u540c\uff09
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9.\u6d1b\u4ed1\u5179\u529bf\uff1dqVBsin\u03b8 \uff08\u03b8\u4e3aB\u4e0eV\u7684\u5939\u89d2\uff0c\u5f53V\u22a5B\u65f6\uff1af\uff1dqVB\uff0cV//B\u65f6:f\uff1d0\uff09
\u6ce8:(1)\u52b2\u5ea6\u7cfb\u6570k\u7531\u5f39\u7c27\u81ea\u8eab\u51b3\u5b9a;
(2)\u6469\u64e6\u56e0\u6570\u03bc\u4e0e\u538b\u529b\u5927\u5c0f\u53ca\u63a5\u89e6\u9762\u79ef\u5927\u5c0f\u65e0\u5173\uff0c\u7531\u63a5\u89e6\u9762\u6750\u6599\u7279\u6027\u4e0e\u8868\u9762\u72b6\u51b5\u7b49\u51b3\u5b9a;
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(5)\u7269\u7406\u91cf\u7b26\u53f7\u53ca\u5355\u4f4dB:\u78c1\u611f\u5f3a\u5ea6(T),L:\u6709\u6548\u957f\u5ea6(m),I:\u7535\u6d41\u5f3a\u5ea6(A),V:\u5e26\u7535\u7c92\u5b50\u901f\u5ea6(m/s),q:\u5e26\u7535\u7c92\u5b50\uff08\u5e26\u7535\u4f53\uff09\u7535\u91cf(C);
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2\uff09\u529b\u7684\u5408\u6210\u4e0e\u5206\u89e3
1.\u540c\u4e00\u76f4\u7ebf\u4e0a\u529b\u7684\u5408\u6210\u540c\u5411:F\uff1dF1+F2\uff0c \u53cd\u5411\uff1aF\uff1dF1-F2 (F1>F2)
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4.\u529b\u7684\u6b63\u4ea4\u5206\u89e3\uff1aFx\uff1dFcos\u03b2\uff0cFy\uff1dFsin\u03b2\uff08\u03b2\u4e3a\u5408\u529b\u4e0ex\u8f74\u4e4b\u95f4\u7684\u5939\u89d2tg\u03b2\uff1dFy/Fx\uff09
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(3)\u9664\u516c\u5f0f\u6cd5\u5916\uff0c\u4e5f\u53ef\u7528\u4f5c\u56fe\u6cd5\u6c42\u89e3,\u6b64\u65f6\u8981\u9009\u62e9\u6807\u5ea6,\u4e25\u683c\u4f5c\u56fe;
(4)F1\u4e0eF2\u7684\u503c\u4e00\u5b9a\u65f6,F1\u4e0eF2\u7684\u5939\u89d2(\u03b1\u89d2)\u8d8a\u5927\uff0c\u5408\u529b\u8d8a\u5c0f;
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1.\u725b\u987f\u7b2c\u4e00\u8fd0\u52a8\u5b9a\u5f8b(\u60ef\u6027\u5b9a\u5f8b):\u7269\u4f53\u5177\u6709\u60ef\u6027,\u603b\u4fdd\u6301\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u72b6\u6001\u6216\u9759\u6b62\u72b6\u6001,\u76f4\u5230\u6709\u5916\u529b\u8feb\u4f7f\u5b83\u6539\u53d8\u8fd9\u79cd\u72b6\u6001\u4e3a\u6b62
2.\u725b\u987f\u7b2c\u4e8c\u8fd0\u52a8\u5b9a\u5f8b:F\u5408\uff1dma\u6216a\uff1dF\u5408/ma{\u7531\u5408\u5916\u529b\u51b3\u5b9a,\u4e0e\u5408\u5916\u529b\u65b9\u5411\u4e00\u81f4}
3.\u725b\u987f\u7b2c\u4e09\u8fd0\u52a8\u5b9a\u5f8b:F\uff1d-F\u2032{\u8d1f\u53f7\u8868\u793a\u65b9\u5411\u76f8\u53cd,F\u3001F\u2032\u5404\u81ea\u4f5c\u7528\u5728\u5bf9\u65b9,\u5e73\u8861\u529b\u4e0e\u4f5c\u7528\u529b\u53cd\u4f5c\u7528\u529b\u533a\u522b,\u5b9e\u9645\u5e94\u7528:\u53cd\u51b2\u8fd0\u52a8}
4.\u5171\u70b9\u529b\u7684\u5e73\u8861F\u5408\uff1d0\uff0c\u63a8\u5e7f \uff5b\u6b63\u4ea4\u5206\u89e3\u6cd5\u3001\u4e09\u529b\u6c47\u4ea4\u539f\u7406\uff5d
5.\u8d85\u91cd:FN>G,\u5931\u91cd:FN<G {\u52a0\u901f\u5ea6\u65b9\u5411\u5411\u4e0b\uff0c\u5747\u5931\u91cd\uff0c\u52a0\u901f\u5ea6\u65b9\u5411\u5411\u4e0a\uff0c\u5747\u8d85\u91cd}
6.\u725b\u987f\u8fd0\u52a8\u5b9a\u5f8b\u7684\u9002\u7528\u6761\u4ef6:\u9002\u7528\u4e8e\u89e3\u51b3\u4f4e\u901f\u8fd0\u52a8\u95ee\u9898,\u9002\u7528\u4e8e\u5b8f\u89c2\u7269\u4f53,\u4e0d\u9002\u7528\u4e8e\u5904\u7406\u9ad8\u901f\u95ee\u9898,\u4e0d\u9002\u7528\u4e8e\u5fae\u89c2\u7c92\u5b50
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1.\u5e73\u5747\u901f\u5ea6V\u5e73=S / t \uff08\u5b9a\u4e49\u5f0f\uff09 2.\u6709\u7528\u63a8\u8bbaVt 2 \u2013V0 2=2as 3.\u4e2d\u95f4\u65f6\u523b\u901f\u5ea6 Vt / 2= V\u5e73=(V t + V o) / 2 4.\u672b\u901f\u5ea6V=Vo+at
5.\u4e2d\u95f4\u4f4d\u7f6e\u901f\u5ea6Vs / 2=[(V_o2 + V_t2) / 2] 1/2 6.\u4f4d\u79fbS= V\u5e73t=V o t + at2 / 2=V t / 2 t
7.\u52a0\u901f\u5ea6a=(V_t - V_o) / t \u4ee5V_o\u4e3a\u6b63\u65b9\u5411\uff0ca\u4e0eV_o\u540c\u5411(\u52a0\u901f)a>0\uff1b\u53cd\u5411\u5219a<0 8.\u5b9e\u9a8c\u7528\u63a8\u8bba\u0394S=aT2 \u0394S\u4e3a\u76f8\u90bb\u8fde\u7eed\u76f8\u7b49\u65f6\u95f4(T)\u5185\u4f4d\u79fb\u4e4b\u5dee 9.\u4e3b\u8981\u7269\u7406\u91cf\u53ca\u5355\u4f4d:\u521d\u901f(V_o):m/ s \u52a0\u901f\u5ea6(a):m/ s2 \u672b\u901f\u5ea6(Vt):m/ s \u65f6\u95f4(t):\u79d2(s) \u4f4d\u79fb(S):\u7c73\uff08m\uff09 \u8def\u7a0b:\u7c73 \u901f\u5ea6\u5355\u4f4d\u6362\u7b97\uff1a 1m/ s=3.6Km/ h
\u6ce8\uff1a(1)\u5e73\u5747\u901f\u5ea6\u662f\u77e2\u91cf\u3002(2)\u7269\u4f53\u901f\u5ea6\u5927,\u52a0\u901f\u5ea6\u4e0d\u4e00\u5b9a\u5927\u3002(3)a=(V_t - V_o)/ t\u53ea\u662f\u91cf\u5ea6\u5f0f\uff0c\u4e0d\u662f\u51b3\u5b9a\u5f0f\u3002(4)\u5176\u5b83\u76f8\u5173\u5185\u5bb9\uff1a\u8d28\u70b9/\u4f4d\u79fb\u548c\u8def\u7a0b/s--t\u56fe/v--t\u56fe/\u901f\u5ea6\u4e0e\u901f\u7387/ 2) \u81ea\u7531\u843d\u4f53
1.\u521d\u901f\u5ea6V_o =0 2.\u672b\u901f\u5ea6V_t = g t
3.\u4e0b\u843d\u9ad8\u5ea6h=gt2 / 2\uff08\u4eceV_o \u4f4d\u7f6e\u5411\u4e0b\u8ba1\u7b97\uff09 4.\u63a8\u8bbaV t2 = 2gh
\u6ce8:(1)\u81ea\u7531\u843d\u4f53\u8fd0\u52a8\u662f\u521d\u901f\u5ea6\u4e3a\u96f6\u7684\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0c\u9075\u5faa\u5300\u53d8\u901f\u5ea6\u76f4\u7ebf\u8fd0\u52a8\u89c4\u5f8b\u3002 (2)a=g=9.8\u224810m/s2 \u91cd\u529b\u52a0\u901f\u5ea6\u5728\u8d64\u9053\u9644\u8fd1\u8f83\u5c0f,\u5728\u9ad8\u5c71\u5904\u6bd4\u5e73\u5730\u5c0f\uff0c\u65b9\u5411\u7ad6\u76f4\u5411\u4e0b\u3002 3) \u7ad6\u76f4\u4e0a\u629b
1.\u4f4d\u79fbS=V_o t \u2013 gt 2 / 2 2.\u672b\u901f\u5ea6V_t = V_o \u2013 g t \uff08g=9.8\u224810 m / s2 \uff09
3.\u6709\u7528\u63a8\u8bbaV_t 2 - V_o 2 = - 2 g S 4.\u4e0a\u5347\u6700\u5927\u9ad8\u5ea6H_max=V_o 2 / (2g) (\u629b\u51fa\u70b9\u7b97\u8d77) 5.\u5f80\u8fd4\u65f6\u95f4t=2V_o / g \uff08\u4ece\u629b\u51fa\u843d\u56de\u539f\u4f4d\u7f6e\u7684\u65f6\u95f4\uff09
\u6ce8:(1)\u5168\u8fc7\u7a0b\u5904\u7406:\u662f\u5300\u51cf\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0c\u4ee5\u5411\u4e0a\u4e3a\u6b63\u65b9\u5411\uff0c\u52a0\u901f\u5ea6\u53d6\u8d1f\u503c\u3002(2)\u5206\u6bb5\u5904\u7406\uff1a\u5411\u4e0a\u4e3a\u5300\u51cf\u901f\u8fd0\u52a8\uff0c\u5411\u4e0b\u4e3a\u81ea\u7531\u843d\u4f53\u8fd0\u52a8\uff0c\u5177\u6709\u5bf9\u79f0\u6027\u3002(3)\u4e0a\u5347\u4e0e\u4e0b\u843d\u8fc7\u7a0b\u5177\u6709\u5bf9\u79f0\u6027,\u5982\u5728\u540c\u70b9\u901f\u5ea6\u7b49\u503c\u53cd\u5411\u7b49\u3002 \u5e73\u629b\u8fd0\u52a8
1.\u6c34\u5e73\u65b9\u5411\u901f\u5ea6V_x= V_o 2.\u7ad6\u76f4\u65b9\u5411\u901f\u5ea6V_y=gt 3.\u6c34\u5e73\u65b9\u5411\u4f4d\u79fbS_x= V_o t 4.\u7ad6\u76f4\u65b9\u5411\u4f4d\u79fbS_y=gt2 / 2 5.\u8fd0\u52a8\u65f6\u95f4t=(2S_y / g)1/2 (\u901a\u5e38\u53c8\u8868\u793a\u4e3a(2h/g) 1/2 ) 6.\u5408\u901f\u5ea6V_t=(V_x2+V_y2) 1/2=[ V_o2 + (gt)2 ] 1/2 \u5408\u901f\u5ea6\u65b9\u5411\u4e0e\u6c34\u5e73\u5939\u89d2\u03b2: tg\u03b2=V_y / V_x = gt / V_o 7.\u5408\u4f4d\u79fbS=(S_x2+ S_y2) 1/2 ,
\u4f4d\u79fb\u65b9\u5411\u4e0e\u6c34\u5e73\u5939\u89d2\u03b1: tg\u03b1=S_y / S_x\uff1dgt / (2V_o)
\u6ce8\uff1a(1)\u5e73\u629b\u8fd0\u52a8\u662f\u5300\u53d8\u901f\u66f2\u7ebf\u8fd0\u52a8\uff0c\u52a0\u901f\u5ea6\u4e3ag\uff0c\u901a\u5e38\u53ef\u770b\u4f5c\u662f\u6c34\u5e73\u65b9\u5411\u7684\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u4e0e\u7ad6\u76f4\u65b9\u5411\u7684\u81ea\u7531\u843d\u4f53\u8fd0\u52a8\u7684\u5408\u6210\u3002(2)\u8fd0\u52a8\u65f6\u95f4\u7531\u4e0b\u843d\u9ad8\u5ea6h(S_y)\u51b3\u5b9a\u4e0e\u6c34\u5e73\u629b\u51fa\u901f\u5ea6\u65e0\u5173\u3002\uff083\uff09\u03b8\u4e0e\u03b2\u7684\u5173\u7cfb\u4e3atg\u03b2\uff1d2tg\u03b1 \u3002\uff084\uff09\u5728\u5e73\u629b\u8fd0\u52a8\u4e2d\u65f6\u95f4t\u662f\u89e3\u9898\u5173\u952e\u3002(5)\u66f2\u7ebf\u8fd0\u52a8\u7684\u7269\u4f53\u5fc5\u6709\u52a0\u901f\u5ea6\uff0c\u5f53\u901f\u5ea6\u65b9\u5411\u4e0e\u6240\u53d7\u5408\u529b(\u52a0\u901f\u5ea6)\u65b9\u5411\u4e0d\u5728\u540c\u4e00\u76f4\u7ebf\u4e0a\u65f6\u7269\u4f53\u505a\u66f2\u7ebf\u8fd0\u52a8\u3002 2\uff09\u5300\u901f\u5706\u5468\u8fd0\u52a8
1.\u7ebf\u901f\u5ea6V=s / t=2\u03c0R / T 2.\u89d2\u901f\u5ea6\u03c9=\u03a6 / t = 2\u03c0 / T= 2\u03c0f
3.\u5411\u5fc3\u52a0\u901f\u5ea6a=V2 / R=\u03c92 R=(2\u03c0/T)2 R 4.\u5411\u5fc3\u529bF\u5fc3=mV2 / R=m\u03c92 R=m(2\u03c0/ T)2 R 5.\u5468\u671f\u4e0e\u9891\u7387T=1 / f 6.\u89d2\u901f\u5ea6\u4e0e\u7ebf\u901f\u5ea6\u7684\u5173\u7cfbV=\u03c9R
7.\u89d2\u901f\u5ea6\u4e0e\u8f6c\u901f\u7684\u5173\u7cfb\u03c9=2\u03c0n (\u6b64\u5904\u9891\u7387\u4e0e\u8f6c\u901f\u610f\u4e49\u76f8\u540c)
8.\u4e3b\u8981\u7269\u7406\u91cf\u53ca\u5355\u4f4d\uff1a \u5f27\u957f(S):\u7c73(m) \u89d2\u5ea6(\u03a6)\uff1a\u5f27\u5ea6\uff08rad\uff09 \u9891\u7387\uff08f\uff09\uff1a\u8d6b\uff08Hz\uff09 \u5468\u671f\uff08T\uff09\uff1a\u79d2\uff08s\uff09 \u8f6c\u901f\uff08n\uff09\uff1ar / s \u534a\u5f84(R):\u7c73\uff08m\uff09 \u7ebf\u901f\u5ea6\uff08V\uff09\uff1am / s \u89d2\u901f\u5ea6\uff08\u03c9\uff09\uff1arad / s \u5411\u5fc3\u52a0\u901f\u5ea6\uff1am / s2
\u6ce8\uff1a\uff081\uff09\u5411\u5fc3\u529b\u53ef\u4ee5\u7531\u5177\u4f53\u67d0\u4e2a\u529b\u63d0\u4f9b\uff0c\u4e5f\u53ef\u4ee5\u7531\u5408\u529b\u63d0\u4f9b\uff0c\u8fd8\u53ef\u4ee5\u7531\u5206\u529b\u63d0\u4f9b\uff0c\u65b9\u5411\u59cb\u7ec8\u4e0e\u901f\u5ea6\u65b9\u5411\u5782\u76f4\u3002\uff082\uff09\u505a\u5300\u901f\u5ea6\u5706\u5468\u8fd0\u52a8\u7684\u7269\u4f53\uff0c\u5176\u5411\u5fc3\u529b\u7b49\u4e8e\u5408\u529b\uff0c\u5e76\u4e14\u5411\u5fc3\u529b\u53ea\u6539\u53d8\u901f\u5ea6\u7684\u65b9\u5411\uff0c\u4e0d\u6539\u53d8\u901f\u5ea6\u7684\u5927\u5c0f\uff0c\u56e0\u6b64\u7269\u4f53\u7684\u52a8\u80fd\u4fdd\u6301\u4e0d\u53d8\uff0c\u4f46\u52a8\u91cf\u4e0d\u65ad\u6539\u53d8\u3002 3)\u4e07\u6709\u5f15\u529b
1.\u5f00\u666e\u52d2\u7b2c\u4e09\u5b9a\u5f8bT2 / R3=K(4\u03c02 / GM) R:\u8f68\u9053\u534a\u5f84 T :\u5468\u671f K:\u5e38\u91cf(\u4e0e\u884c\u661f\u8d28\u91cf\u65e0\u5173) 2.\u4e07\u6709\u5f15\u529b\u5b9a\u5f8bF=Gm_1m_2 / r2 G=6.67\u00d710-11N\u00b7m2 / kg2\u65b9\u5411\u5728\u5b83\u4eec\u7684\u8fde\u7ebf\u4e0a 3.\u5929\u4f53\u4e0a\u7684\u91cd\u529b\u548c\u91cd\u529b\u52a0\u901f\u5ea6GMm/R2=mg g=GM/R2 R:\u5929\u4f53\u534a\u5f84(m) 4.\u536b\u661f\u7ed5\u884c\u901f\u5ea6\u3001\u89d2\u901f\u5ea6\u3001\u5468\u671f V=(GM/R)1/2 \u03c9=(GM/R3)1/2 T=2\u03c0(R3/GM)1/2 5.\u7b2c\u4e00(\u4e8c\u3001\u4e09)\u5b87\u5b99\u901f\u5ea6V_1=(g\u5730
r\u5730)1/2=7.9Km/s V_2=11.2Km/s V_3=16.7Km/s 6.\u5730\u7403\u540c\u6b65\u536b\u661fGMm / (R+h)2=m4\u03c02 (R+h) / T2 h\u224836000 km/h:\u8ddd\u5730\u7403\u8868\u9762\u7684\u9ad8\u5ea6
\u6ce8:(1)\u5929\u4f53\u8fd0\u52a8\u6240\u9700\u7684\u5411\u5fc3\u529b\u7531\u4e07\u6709\u5f15\u529b\u63d0\u4f9b,F\u5fc3=F\u4e07\u3002(2)\u5e94\u7528\u4e07\u6709\u5f15\u529b\u5b9a\u5f8b\u53ef\u4f30\u7b97\u5929\u4f53\u7684\u8d28\u91cf\u5bc6\u5ea6\u7b49\u3002(3)\u5730\u7403\u540c\u6b65\u536b\u661f\u53ea\u80fd\u8fd0\u884c\u4e8e\u8d64\u9053\u4e0a\u7a7a\uff0c\u8fd0\u884c\u5468\u671f\u548c\u5730\u7403\u81ea\u8f6c\u5468\u671f\u76f8\u540c\u3002(4)\u536b\u661f\u8f68\u9053\u534a\u5f84\u53d8\u5c0f\u65f6,\u52bf\u80fd\u53d8\u5c0f\u3001\u52a8\u80fd\u53d8\u5927\u3001\u901f\u5ea6\u53d8\u5927\u3001\u5468\u671f\u53d8\u5c0f\u3002(5)\u5730\u7403\u536b\u661f\u7684\u6700\u5927\u73af\u7ed5\u901f\u5ea6\u548c\u6700\u5c0f\u53d1\u5c04\u901f\u5ea6\u5747\u4e3a7.9Km/S\u3002 \u4e09\u3001 \u529b\uff08\u5e38\u89c1\u7684\u529b\u3001\u529b\u77e9\u3001\u529b\u7684\u5408\u6210\u4e0e\u5206\u89e3\uff09 1)\u5e38\u89c1\u7684\u529b
1.\u91cd\u529bG=mg\u65b9\u5411\u7ad6\u76f4\u5411\u4e0bg=9.8 m/s2 \u224810 m/s2 \u4f5c\u7528\u70b9\u5728\u91cd\u5fc3 \u9002\u7528\u4e8e\u5730\u7403\u8868\u9762\u9644\u8fd1 2.\u80e1\u514b\u5b9a\u5f8bF=kX \u65b9\u5411\u6cbf\u6062\u590d\u5f62\u53d8\u65b9\u5411 k\uff1a\u52b2\u5ea6\u7cfb\u6570(N/m) X\uff1a\u5f62\u53d8\u91cf(m) 3.\u6ed1\u52a8\u6469\u64e6\u529bf=\u03bcN \u4e0e\u7269\u4f53\u76f8\u5bf9\u8fd0\u52a8\u65b9\u5411\u76f8\u53cd \u03bc\uff1a\u6469\u64e6\u56e0\u6570 N\uff1a\u6b63\u538b\u529b(N) 4.\u9759\u6469\u64e6\u529b0\u2264f\u9759\u2264fm \u4e0e\u7269\u4f53\u76f8\u5bf9\u8fd0\u52a8\u8d8b\u52bf\u65b9\u5411\u76f8\u53cd fm\u4e3a\u6700\u5927\u9759\u6469\u64e6\u529b 5.\u4e07\u6709\u5f15\u529bF=G m_1m_2 / r2 G=6.67\u00d710-11 N\u00b7m2/kg2 \u65b9\u5411\u5728\u5b83\u4eec\u7684\u8fde\u7ebf\u4e0a 6.\u9759\u7535\u529bF=K Q_1Q_2 / r2 K=9.0\u00d7109 N\u00b7m2/C2 \u65b9\u5411\u5728\u5b83\u4eec\u7684\u8fde\u7ebf\u4e0a 7.\u7535\u573a\u529bF=Eq E\uff1a\u573a\u5f3aN/C q\uff1a\u7535\u91cfC \u6b63\u7535\u8377\u53d7\u7684\u7535\u573a\u529b\u4e0e\u573a\u5f3a\u65b9\u5411\u76f8\u540c 8.\u5b89\u57f9\u529bF=B I L sin\u03b8 \u03b8\u4e3aB\u4e0eL\u7684\u5939\u89d2 \u5f53 L\u22a5B\u65f6: F=B I L \uff0c B//L\u65f6: F=0 9.\u6d1b\u4ed1\u5179\u529bf=q V B sin\u03b8 \u03b8\u4e3aB\u4e0eV\u7684\u5939\u89d2 \u5f53V\u22a5B\u65f6\uff1a f=q V B \uff0c V//B\u65f6: f=0
\u6ce8:(1)\u52b2\u5ea6\u7cfb\u6570K\u7531\u5f39\u7c27\u81ea\u8eab\u51b3\u5b9a(2)\u6469\u64e6\u56e0\u6570\u03bc\u4e0e\u538b\u529b\u5927\u5c0f\u53ca\u63a5\u89e6\u9762\u79ef\u5927\u5c0f\u65e0\u5173\uff0c\u7531\u63a5\u89e6\u9762\u6750\u6599\u7279\u6027\u4e0e\u8868\u9762\u72b6\u51b5\u7b49\u51b3\u5b9a\u3002(3)fm\u7565\u5927\u4e8e\u03bcN \u4e00\u822c\u89c6\u4e3afm\u2248\u03bcN (4)\u7269\u7406\u91cf\u7b26\u53f7\u53ca\u5355\u4f4d B\uff1a\u78c1\u611f\u5f3a\u5ea6(T)\uff0c L\uff1a\u6709\u6548\u957f\u5ea6(m)\uff0c I:\u7535\u6d41\u5f3a\u5ea6(A)\uff0cV\uff1a\u5e26\u7535\u7c92\u5b50\u901f\u5ea6(m/S), q:\u5e26\u7535\u7c92\u5b50\uff08\u5e26\u7535\u4f53\uff09\u7535\u91cf(C)\uff0c(5)\u5b89\u57f9\u529b\u4e0e\u6d1b\u4ed1\u5179\u529b\u65b9\u5411\u5747\u7528\u5de6\u624b\u5b9a\u5219\u5224\u5b9a\u3002
好多啊
绛旓細鐗╃悊鍏紡 绗竴绔犺繍鍔ㄧ殑鎻忚堪 涓昏鐗╃悊閲忓強鍗曚綅:鍒濋熷害(vo):m/s锛 鏈熷害(v):m/s锛 鍔犻熷害(a):m/s2 鏃堕棿(t):s 锛 浣嶇Щ(x):m 1.閫熷害鐨勫畾涔夊紡锛氾紙 鐢ㄦ潵璁$畻骞冲潎閫熷害 )2.鍔犻熷害鐨勫畾涔夊紡锛氱浜岀珷鍖鍙橀熺洿绾胯繍鍔ㄧ殑鐮旂┒ 锛1锛夊寑鍙橀熺洿绾胯繍鍔ㄤ笁涓熀鏈叕寮 閫熷害鍏紡锛歷=v0+at 锛堢敤鏉ヨ绠楁湯...
绛旓細5.涓棿浣嶇疆閫熷害Vs/2锛漑(Vo2+Vt2)/2]1/2 6.浣嶇Щs锛漋骞硉锛漋ot+at2/2锛漋t/2t 7.鍔犻熷害a锛(Vt-Vo)/t 锝涗互Vo涓烘鏂瑰悜锛宎涓嶸o鍚屽悜(鍔犻)a>0锛涘弽鍚戝垯a<0锝 8.瀹為獙鐢ㄦ帹璁何攕锛漚T2 锝浳攕涓鸿繛缁浉閭荤浉绛夋椂闂(T)鍐呬綅绉讳箣宸綕 9.涓昏鐗╃悊閲忓強鍗曚綅:鍒濋熷害(Vo):m/s锛涘姞閫熷害(a):m/...
绛旓細楂樹腑鐗╃悊鍔涘鐨勫涔,瀵鍏紡銆佽寰嬬殑鎺屾彙銆佸簲鐢ㄩ潪甯搁噸瑕,鎵浠ュ緢鏈夊繀瑕佸鐩稿叧鍏紡銆佽寰嬭繘琛屽綊绾虫荤粨,浠ヤ笅鏄湰浜哄楂樹腑鐗╃悊鍔涘鐨勭浉鍏冲叕寮忋佽寰嬬殑褰掔撼鎬荤粨,渚涘悓瀛︿滑瀛︿範鍙傝冦1銆 鑳″厠瀹氬緥: F = Kx (x涓轰几闀块噺鎴栧帇缂╅噺,K涓哄斿己绯绘暟,鍙笌寮圭哀鐨勫師闀裤佺矖缁嗗拰鏉愭枡鏈夊叧) 2銆 閲嶅姏:G = mg (g闅忛珮搴︺佺含搴︺佸湴璐...
绛旓細涓棿浣嶇疆閫熷害Vs/2锛漑(Vo2+Vt2)/2]1/26.浣嶇Щs锛漋骞硉锛漋ot+at2/2锛漋t/2t锛涘姞閫熷害a锛(Vt-Vo)/t锝涗互Vo涓烘鏂瑰悜锛宎涓嶸o鍚屽悜(鍔犻)a>0锛涘弽鍚戝垯a<0锝濓紱瀹為獙鐢ㄦ帹璁何攕锛漚T2锝浳攕涓鸿繛缁浉閭荤浉绛夋椂闂(T)鍐呬綅绉讳箣宸綕 涓昏鐗╃悊閲忓強鍗曚綅锛氬垵閫熷害(Vo)锛歮/s锛涘姞閫熷害(a)锛歮/s2锛涙湯閫熷害(Vt...
绛旓細绗竴绔 鍔 1锛 閲嶅姏锛欸 = mg 2锛 鎽╂摝鍔涳細锛1锛 婊戝姩鎽╂摝鍔涳細f = 渭FN 鍗虫粦鍔ㄦ懇鎿﹀姏璺熷帇鍔涙垚姝f瘮銆傦紙2锛 闈欐懇鎿﹀姏锛氣憼瀵逛竴鑸潤鎽╂摝鍔涚殑璁$畻搴旇鍒╃敤鐗涢】绗簩瀹氬緥锛屽垏璁颁笉瑕佷贡鐢 f =渭FN锛涒憽瀵规渶澶ч潤鎽╂摝鍔涚殑璁$畻鏈鍏紡锛歠 = 渭FN 锛堟敞鎰忥細杩欓噷鐨勎间笌婊戝姩鎽╂摝瀹氬緥涓殑渭鐨勫尯鍒,...
绛旓細a涓嶸o鍚屽悜(鍔犻)a>0锛涘弽鍚戝垯a<0 8.瀹為獙鐢ㄦ帹璁何擲=aT^2 螖S涓虹浉閭昏繛缁浉绛夋椂闂(T)鍐呬綅绉讳箣宸 9.涓昏鐗╃悊閲忓強鍗曚綅:鍒濋(Vo):m/s 鍔犻熷害(a):m/s^2 鏈熷害(Vt):m/s 鏃堕棿(t):绉(s) 浣嶇Щ(S):绫筹紙m锛 璺▼:绫 閫熷害鍗曚綅鎹㈢畻锛1m/s=3.6Km/h 娉細(1)骞冲潎閫熷害鏄煝閲忋(2)鐗╀綋...
绛旓細蹇呬慨1 杩愬姩瀛鍏紡 V=鈻砐/鈻硉 a=鈻砎/鈻硉 S=V0t+1/2at2 S锛氫綅绉 V0锛氬垵閫熷害 a锛氬姞閫熷害 t:鏃堕棿 S=1/2(V0+Vt)t Vt锛氭湯閫熷害 2aS=Vt2-V02 Vt=V0+at 鑷敱钀戒綋锛欻=1/2gt2 2gH=Vt2 Vt=gt 鑳″厠瀹氬緥锛欶=kx k:鍔插害绯绘暟 x锛氳〃绀轰互鍘熼暱涓哄熀鍑嗙殑褰㈠彉閲 鐗涢】绗簩瀹氬緥锛欶=ma 涓...
绛旓細楂樹竴鐗╃悊蹇呬慨涓涓殑鎵鏈鍏紡鍙婂叾鎺ㄥ鍏紡 涓轰汉鏁欑増涓殑... 涓轰汉鏁欑増涓殑 灞曞紑 2涓洖绛 #鐑# 鑱屽満涓婂彈濮斿眻瑕佷笉瑕佷负鑷繁瑙i噴?鍖垮悕鐢ㄦ埛 2011-07-14 灞曞紑鍏ㄩ儴 涓, 璐ㄧ偣鐨勮繍鍔(1)--- 鐩寸嚎杩愬姩1)鍖鍙橀熺洿绾胯繍鍔1.骞冲潎閫熷害V骞=S / t (瀹氫箟寮) 2.鏈夌敤鎺ㄨVt 2 鈥揤0 2=2as3.涓棿鏃跺埢閫熷害 Vt /...
绛旓細4.鏈熷害Vt锛漋o+at 5.涓棿浣嶇疆閫熷害Vs/2锛漑(Vo2+Vt2)/2]1/2 6.浣嶇Щs锛漋骞硉锛漋ot+at2/2锛漋t/2t 7.鍔犻熷害a锛(Vt-Vo)/t 锝涗互Vo涓烘鏂瑰悜锛宎涓嶸o鍚屽悜(鍔犻)a>0锛涘弽鍚戝垯a<0锝 8.瀹為獙鐢ㄦ帹璁何攕锛漚T2 锝浳攕涓鸿繛缁浉閭荤浉绛夋椂闂(T)鍐呬綅绉讳箣宸綕 9.涓昏鐗╃悊閲忓強鍗曚綅:鍒濋熷害(Vo)...
绛旓細5 楂樹腑鐗╃悊鍏紡鎬荤粨 3.鐞嗘兂姘斾綋鐨勭姸鎬佹柟绋:p1V1/T1=p2V2/T2 {PV/T=鎭掗噺,T涓虹儹鍔涘娓╁害(K)} 娉: (1)鐞嗘兂姘斾綋鐨勫唴鑳戒笌鐞嗘兂姘斾綋鐨勪綋绉棤鍏,涓庢俯搴﹀拰鐗╄川鐨勯噺鏈夊叧; (2)鍏紡3鎴愮珛鏉′欢鍧囦负涓瀹氳川閲忕殑鐞嗘兂姘斾綋,浣跨敤鍏紡鏃惰娉ㄦ剰娓╁害鐨勫崟浣,t涓烘憚姘忔俯搴(鈩),鑰孴涓虹儹鍔涘娓╁害(K)銆 鍗併佺數鍦 1.涓ょ鐢佃嵎...