ÌâÄ¿ÄÚÈÝ
11£®Ä³Í¬Ñ§ÔÚ¡°²â¶¨½ðÊôµÄµç×èÂÊ¡±µÄʵÑéÖУ¬Ö÷Òª²½ÖèÈçÏ£º¢ÙÓöàÓõç±í´ÖÂÔ²âÁ¿½ðÊôË¿µÄµç×èÖµ£»
¢ÚÓÃÃ׳߲âÁ¿½ðÊôË¿µÄÓÐЧ³¤¶ÈL£»
¢ÛÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿Ö±¾¶d£»
¢ÜÓ÷ü°²·¨²âÁ¿¸Ã½ðÊôË¿µÄµç×裻
¢Ý¸ù¾Ý²âµÃµÄÊý¾Ý£¬¼ÆËã½ðÊôË¿µç×èÂʵıí´ïʽ£®
¸ù¾ÝÌâÄ¿ÒªÇóÍê³ÉÏÂÁÐÎÊÌ⣺
£¨1£©²½Öè¢ÛÖвâÁ¿½ðÊôË¿Ö±¾¶Èçͼ1Ëùʾ£¬Ôòd=0.680mm£®
£¨2£©²½Öè¢ÜÖÐΪÁ˾¡¿ÉÄÜ׼ȷµØ²âÁ¿£¬ÒªÊ¹½ðÊôË¿Á½¶Ëµçѹ´ÓÁ㿪ʼ±ä»¯£¬µçѹ±íÓÃ0¡«3VÁ¿³Ì£¬µçÁ÷±íÓÃ0¡«0.6AÁ¿³Ì£¨ÄÚ×èԼΪ10¦¸£©£¬ÇÒ²ÉÓõçÁ÷±íÍâ½Ó·¨£¬ÇëÔÚͼ2ʵÎïͼÉÏÓñʻÏß´úÌæµ¼Ï߰ѵç·°´ÒªÇóÁ¬½ÓºÃ£®
£¨3£©²½Öè¢ÝÖÐÓòâµÃµÄ½ðÊôË¿³¤¶ÈL¡¢Ö±¾¶d¡¢½ðÊôË¿Á½¶ËµçѹU¡¢Á÷¹ý½ðÊôË¿µÄµçÁ÷I£¬¼ÆËã½ðÊôµç×èÂÊ£¬Æä±í´ïʽΪ¦Ñ=$\frac{¦ÐU{d}^{2}}{4IL}$£®£¨ÓÃL¡¢d¡¢U¡¢I±íʾ£©
£¨4£©²½Öè¢ÜÖÐÖ®ËùÒÔ²ÉÓÃËùÊö·½°¸£¬ÊÇÒòΪ¸ÃͬѧÔÚ²½Öè¢ÙÖÐÒÑÓöàÓõç±í´ÖÂÔ²âÁ¿Æä×èÖµ£¬¿É¹©Ñ¡ÔñµÄ²Ù×÷²½ÖèÈçÏ£¨»úеµ÷ÁãÒѾÍê³É£©£º
A£®¹Û²ìÖ¸ÕëλÖ㬶Á³öµç×è×èÖµ
B£®½«Á½±í±ÊÖ±½Ó½Ó´¥£¬½øÐе÷Áã
C£®°ÑÁ½±í±ÊÓëµç×èÁ½¶Ë½Ó´¥£º
D£®½«Ñ¡Ôñ¿ª¹Ø°âµ½Å·Ä·µ²¡°¡Á100¡±´¦
E£®½«Ñ¡Ôñ¿ª¹ØÐýµ½OFFµµ
F£®½«Ñ¡Ôñ¿ª¹Ø°âµ½Å·Ä·µ²¡°¡Á1¡±´¦
ÇëÔÚÉÏÊö²Ù×÷ÖÐÑ¡ÔñÐèÒªµÄ²½Ö貢д³öºÏÀíµÄ˳Ðò£ºFBCAE£®
·ÖÎö £¨1£©ÂÝÐý²â΢Æ÷µÄ¶ÁÊý·½·¨Êǹ̶¨¿Ì¶È¶ÁÊý¼ÓÉϿɶ¯¿Ì¶È¶ÁÊý£¬ÔÚ¶Á¿É¶¯¿Ì¶È¶ÁÊýʱÐè¹À¶Á£»
£¨2£©¸ù¾ÝʵÑéÒªÇóÁ¬½ÓʵÎïͼ¼´¿É£»
£¨3£©Ó¦Óõç×趨ÂÉ¿ÉÒÔÍƵ¼³ö½ðÊôµÄµç×èÂÊ£»
£¨4£©Å·Ä·±í²âµç×èµÄ²½ÖèÊÇÏÈÓÃÑ¡Ôñ¿ª¹ØÑ¡Ôñ±¶ÂÊ¡¢Å·Ä·±íµ÷Áã¡¢¿ªÊ¼²âÁ¿¡¢¶Á³öµç×èÖµ¡¢×îºó½«Å·Ä·±íÑ¡Ôñ¿ª¹ØÐýÖÁOFFµµ»ò½»Á÷µçѹ×î¸ßµµ£»
½â´ð ½â£º£¨1£©ÂÝÐý²â΢Æ÷µÄ¹Ì¶¨¿Ì¶ÈΪ0.5mm£¬¿É¶¯¿Ì¶ÈΪ18.0¡Á0.01mm=0.180mm£¬ËùÒÔ×îÖÕ¶ÁÊýΪ£º0.5mm+0.180mm=0.680mm£»
£¨2£©ÒªÊ¹½ðÊôË¿Á½¶Ëµçѹ´ÓÁ㿪ʼ±ä»¯£¬Ôò»¬¶¯±ä×èÆ÷²ÉÓ÷Öѹʽ½Ó·¨£¬µçѹ±íÓÃ0¡«3VÁ¿³Ì£¬µçÁ÷±íÓÃ0¡«0.6AÁ¿³Ì£¨ÄÚ×èԼΪ10¦¸£©£¬ÇÒ²ÉÓõçÁ÷±íÍâ½Ó·¨£¬Á¬½ÓʵÎïͼÈçͼËùʾ£»
£¨3£©ÓÉ$R=\frac{¦ÑL}{S}$£»½ðÊôË¿ºá½ØÃæ»ý$S=¦Ð£¨\frac{d}{2}£©^{2}$£¬Å·Ä·¶¨ÂɿɵÃ$R=\frac{U}{I}$£¬½âµÃ¦Ñ=$\frac{¦ÐU{d}^{2}}{4IL}$£»
£¨4£©¶àÓñíÖÐÀûÓÃÅ·Ä·±í²âµç×èµÄ²½ÖèÊÇÏÈÓÃÑ¡Ôñ¿ª¹ØÑ¡Ôñ±¶ÂÊ¡¢Å·Ä·±íµ÷Áã¡¢¿ªÊ¼²âÁ¿¡¢¶Á³öµç×èÖµ¡¢×îºó½«Å·Ä·±íÑ¡Ôñ¿ª¹ØÐýÖÁOFFµµ»ò½»Á÷µçѹ×î¸ßµµ£»ÓÉÓÚ²½Öè¢Ü²ÉÓõçÁ÷±íÍâ½Ó·¨£¬ËµÃ÷½ðÊôË¿µç×è½ÏС£¬Ñ¡ÓÃÅ·Ä·±í¡Á1±¶Âʼ´¿É£»¹ÊʵÑéµÄºÏÀí˳ÐòÊÇ£ºFBCAE£»
¹Ê´ð°¸Îª£º£¨1£©0.680£»£¨2£©ÈçÉÏͼËùʾ£»£¨3£©$\frac{¦ÐU{d}^{2}}{4IL}$£»£¨4£©FBCAE£®
µãÆÀ ÂÝÐý²â΢Æ÷¹Ì¶¨¿Ì¶ÈÓë¿É¶¯¿Ì¶ÈµÄʾÊýÖ®ºÍÊÇÂÝÐý²â΢Æ÷µÄʾÊý£¬¶ÔÂÝÐý²â΢Æ÷¶ÁÊýʱҪעÒâ¹À¶Á£»ÔÚ²âÁ¿½ðÊôË¿µÄµç×èʱ£¬Ê×ÏÈÒª¿¼ÂÇ°²È«£¬Æä´Î׼ȷ£¬×îºó²Ù×÷·½±ã£¬Á¬½ÓʵÎïͼʱעÒâÕý¸º¼«²»Òª½Ó·´£»ÊìÁ·ÕÆÎÕ¶àÓñíµÄʹÓ㬲»¹Ü²âÁ¿µçÁ÷¡¢µçѹ»¹Êǵç×趼ÐèÒª½øÐлúеµ÷Á㣬¶ø²âÁ¿µç×èʱ¶àÁËÒ»¸ö²½Ö裺ŷķµ÷Á㣬¶øÇÒ»»Ò»¸ö±¶ÂÊÒªÖØнøÐÐÅ·Ä·µ÷Á㣬ÕâÀïÌرðÈÝÒ×Íü¼Ç£®
A£® | ÏȶϿª¿ª¹ØS1 | B£® | ÏȶϿª¿ª¹ØS2 | C£® | ÏȲðÈ¥µçÁ÷±í | D£® | ÏȲðÈ¥µç×èR |
A£® | Ôں˷´Ó¦¹ý³ÌµÄÇ°ºó£¬·´Ó¦ÌåϵµÄÖÊÁ¿ÊýÊغ㣬µ«×ÜÖÊÁ¿Ò»¶¨¼õÉÙ | |
B£® | ÓüÓΡ¢¼Óѹ»ò¸Ä±äÆ仯ѧ״̬µÄ·½·¨¶¼²»ÄܸıäÔ×ÓºËË¥±äµÄ°ëË¥ÆÚ | |
C£® | 18¸ö·ÅÉäÐÔÔªËصÄÔ×Ӻ˾һ¸ö°ëË¥ÆÚÒ»¶¨ÓÐ9¸ö·¢ÉúÁËË¥±ä | |
D£® | ÓÉÁ½ÖÖÔªËصÄÔ×Ӻ˽áºÏ³ÉÒ»ÖÖÐÂÔªËصÄÔ×ÓºËʱ£¬Ò»¶¨ÎüÊÕÄÜÁ¿ |
A£® | ˮƽºãÁ¦FÒ»¶¨´óÓÚ3¦Ì£¨m+M£©g | |
B£® | mÔÚMÉÏ»¬¶¯µÄʱ¼äºÍÔÚ×ÀÃæÉÏ»¬¶¯µÄʱ¼äÏàµÈ | |
C£® | M¶ÔmµÄ³åÁ¿´óСÓë×ÀÃæ¶ÔmµÄ³åÁ¿´óСÏàµÈ | |
D£® | ÈôÔö´óˮƽºãÁ¦F£¬Ä¾¿éÓпÉÄÜ»¬³ö×ÀÃæ |
A£® | ¸ÃÁ£×Ó¿ÉÄÜ×öÖ±ÏßÔ˶¯ | |
B£® | ¸ÃÁ£×ÓÔÚÔ˶¯¹ý³ÌÖÐËٶȱ£³Ö²»±ä | |
C£® | Á£×ÓÔ˶¯¹ì¼£Éϸ÷µãµÄµçÊÆÒ»¶¨ÏàµÈ | |
D£® | t1¡¢t2Á½¸öʱ¿Ì£¬Á£×ÓËù´¦Î»Öõ糡ǿ¶ÈÒ»¶¨Ïàͬ |
A£® | ¸Ã²¨²¨ËÙΪ10m/s | |
B£® | ÔÚ0.05sÄÚ£¬Pµãͨ¹ýµÄ·³ÌΪ4cm | |
C£® | pµãÕñ¶¯±ÈQµã³¬Ç°°ë¸öÖÜÆÚ | |
D£® | P¡¢QÔÚÕñ¶¯µÄ¹ý³ÌÖУ¬Î»ÒƵĴóС×ÜÏàµÈ | |
E£® | ÔÚÏàµÈµÄʱ¼äÄÚ£¬P¡¢QÁ½Öʵãͨ¹ýµÄ·³Ì²»ÏàµÈ |
A£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊÇËٶȲ»±äµÄÔ˶¯ | |
B£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊÇËٶȲ»¶Ï±ä»¯µÄÔ˶¯ | |
C£® | ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÎïÌåºÏÍâÁ¦¾ÍÊÇÏòÐÄÁ¦ | |
D£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊÇÇúÏßÔ˶¯ |
A£® | ÌáÉý¹ý³ÌÖÐÊÖ¶ÔÎïÌå×ö¹¦mah | |
B£® | ÌáÉý¹ý³ÌÖÐÎïÌåµÄÖØÁ¦ÊÆÄÜÔö¼Óm£¨a+g£©h | |
C£® | ÌáÉý¹ý³ÌÖкÏÍâÁ¦¶ÔÎïÌå×ö¹¦mah | |
D£® | ÌáÉý¹ý³ÌÖÐÎïÌåÖØÁ¦×ö¹¦mgh |