ÌâÄ¿ÄÚÈÝ

£¨1£©ÔÚÓÃÂäÌå·¨ÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬Ä³Í¬Ñ§°´ÕÕÕýÈ·µÄ²Ù×÷Ñ¡µÃÖ½´øÈçͼ£®ÆäÖÐOÊÇÆðʼµã£¬A¡¢B¡¢CÊÇ´òµã¼ÆʱÆ÷Á¬Ðø´òϵÄ3¸öµã£¬ÒÑÖª´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçԴƵÂÊΪ50Hz£¬¸ÃͬѧÓúÁÃ׿̶ȳ߲âÁ¿Oµ½A¡¢B¡¢C¸÷µãµÄ¾àÀë·Ö±ðΪ9.51cm¡¢12.42cm¡¢15.7cm£®
¢ÙÕâÈý¸öÊý¾ÝÖв»·ûºÏÓÐЧÊý×Ö¶ÁÊýÒªÇóµÄÊÇ______cm£¬Ó¦¼Ç×÷______cm£®
¢ÚÈôÂäÌåÖÊÁ¿Îª0.1Kg£¬¸ÃͬѧÓÃËüÔÚOB¶ÎµÄÔ˶¯À´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£¬ÒÑÖªµ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.8m/s2£¬Ôò¸Ã¹ý³ÌÂäÌåÖØÁ¦ÊÆÄܵļõÉÙÁ¿Îª______J£¬¶¯ÄܵÄÔö¼ÓÁ¿Îª______J£®£¨¾ù±£Áô3λÓÐЧÊý×Ö£©
£¨2£©Ä³´ý²âµç×èRxµÄ×èÖµ´óÔ¼ÔÚ130¦¸¡«150¦¸Ö®¼ä£¬ÊµÑéÊÒÓÐÈçÏÂÆ÷²Ä£º
A£®µçÁ÷±íA1£¨Á¿³Ì0.6A¡¢ÄÚ×èr1ԼΪ0.2¦¸£©
B£®µçÁ÷±íA2£¨Á¿³Ì150mA¡¢ÄÚ×èr2ԼΪ3¦¸£©
C£®µçÁ÷±íA3£¨Á¿³Ì30mA¡¢ÄÚ×èr3Ϊ10¦¸£©
D£®µçѹ±íV£¨Á¿³Ì15V¡¢ÄÚ×èRVԼΪ20K¦¸£©
E£®¶¨Öµµç×èR=30¦¸
F£®»¬¶¯±ä×èÆ÷R£¬×î´ó×èֵԼΪ10¦¸
G£®µçÔ´E£¨µç¶¯ÊÆ5V¡¢ÄÚ×è½ÏС£©
H£®¿ª¹ØS¡¢µ¼ÏßÈô¸É
¢ÙÒª¾¡Á¿×¼È·²âÁ¿RXµÄ×èÖµ£¬ÔÚÉÏÊöÆ÷²ÄÖУ¬Ó¦Ñ¡ÓõÄÊÇ______£®£¨ÌîÆ÷²ÄÇ°ÐòºÅµÄ×Öĸ£©
¢Ú²âÁ¿ÖÐÒªÇóËùÓõç±íµÄ¶ÁÊý²»µÃСÓÚÁ¿³ÌµÄÒ»°ë£¬ÇëÔÚÐéÏß¿òÖл­³ö²âÁ¿µç×èRxµÄʵÑéµç·£®£¨Í¼ÖÐÔª¼þÓÃÌâ¸ÉÖÐÏàÓ¦µÄ×Öĸ±ê×¢£©
¢ÛÓÃÒÑÖªÁ¿ºÍ²âµÃµÄÁ¿±íʾRx=______£¬ËµÃ÷ʽÖи÷×Öĸ±íʾµÄÎïÀíÁ¿£º______£®

¡¾´ð°¸¡¿·ÖÎö£º£¨1£©¿Ì¶È³ßÔÚ¶ÁÊýʱÐèÒª¹À¶Áµ½×îС¿Ì¶ÈµÄÏÂһ룬ºÁÃ׿̶ȳß×îС¿Ì¶ÈÊÇ1mm£¬ËùÒÔÐèÒª¹À¶Áµ½ÏÂһλ£®
£¨2£©·ü°²·¨²âµç×èʱҪÕýÈ·Ñ¡Ôñ¡°¿ØÖƵç·¡±¼´»¬¶¯±ä×èÆ÷µÄ·ÖѹºÍÏÞÁ÷½Ó·¨£¬¸ÃÌâÖÐÓÉÓÚ»¬¶¯±ä×èÆ÷µÄµç×èСÓÚ´ý²âµç×è×èÖµ£¬Òò´ËÑ¡Ó÷Öѹ½Ó·¨£»ÔÙÓоÍÊÇ°²Åà±íµÄÄÚ½ÓºÍÍâ½Ó·¨£¬¸ÃʵÑéÖÐÓÉÓÚÌṩµçµçѹ±íÁ¿³ÌÌ«´ó£¬²»·ûºÏÒªÇó£¬Òò´ËÒªÇÉÃîµÄÀûÓö¨Öµµç×裬ֻҪÄܲâÁ¿³öÁ÷¹ý¶¨Öµµç×èµÄµçÁ÷¼´¿É²âÁ¿³öÓëÆä²¢ÁªµÄµç×èµÄµçѹ¼´¿ÉÍê³ÉʵÑ飻¸ù¾ÝËùÉè¼ÆµÄµç·ͼ£¬ÀûÓô®²¢ÁªÖªÊ¶£¬¼´¿ÉÇó³ö´ý²âµç×èµÄ±í´ïʽ£®
½â´ð£º½â£º¢ÙºÁÃ׿̶ȳ߲âÁ¿³¤¶È£¬ÒªÇó¹À¶Á¼´¶Áµ½×îС¿Ì¶ÈµÄÏÂһλ£®
ÕâÈý¸öÊý¾ÝÖв»·ûºÏÓÐЧÊý×Ö¶ÁÊýÒªÇóµÄÊÇOC¶Î£º15.7£¬Ó¦¼Ç×÷15.70cm£®
¹Ê´ð°¸Îª£º15.7£¬15.70£®
¢ÚÖØÁ¦ÊÆÄܼõСÁ¿¡÷Ep=mgh=9.8×0.1242 J=0.122J
Öмäʱ¿ÌµÄ˲ʱËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËÙ¶ÈÀ´ÇóBµÄËٶȴóС£º


¹Ê´ð°¸Îª£º0.122£¬0.120£®
£¨2£©¢Ù¸ù¾ÝËù¸øÌáµçÔ´¿ÉÒÔ¹ÀËã»Ø·ÖеĵçÁ÷´óÓÚ150mA£¬Òò´ËÑ¡ÔñµçÁ÷±íA1£¬ÓÉÓÚËùÌṩµÄµçѹ±íÁ¿³ÌÌ«´ó£¬µ¼Ö²âÁ¿²»ÕýÈ·£¬Òò´ËÐèÒªÓÃÒÑÖªÄÚ×èµÄµçÁ÷±íºÍ¶¨Öµµç×è½øÐиÄ×°£¬¹ÊÑ¡ÔñµçÁ÷A3¡¢¶¨Öµµç×èR¡¢ÁíÍâÐèÒª»¬¶¯±ä×èÆ÷¡¢µçÔ´¡¢¿ª¹Ø¡¢µ¼Ïߵȣ®
¹Ê´ð°¸Îª£ºACEFGH£® 
¢Ú½â£º£¨1£©¸ÃÌâÖÐÓÉÓÚ»¬¶¯±ä×èÆ÷µÄµç×èСÓÚ´ý²âµç×èͬʱҪÇó¶à²âÊý¾Ý£¬Òò´ËÑ¡Ó÷Öѹ½Ó·¨£¬ÔÚ²âÁ¿µç×èÁ½¶ËµÄµçѹºÍÁ÷¹ýµÄµçÁ÷ʱ£¬¿ÉÒÔ²ÉÓÃÏÂÃæÁ½ÖÖ·½·¨£º
·¨1£º»¬¶¯±ä×èÆ÷·Öѹ½Ó·¨£®RÓëA3´®ÁªºóÓëRx²¢Áª£¬A1²â×ܵçÁ÷£¬¾ßÌåµç·ͼÈçͼһËùʾ£»
·¨2£º»¬¶¯±ä×èÆ÷·Öѹ½Ó·¨£®RxÓëA3´®ÁªºóÓëR²¢Áª£¬A1²â×ܵçÁ÷£¬¾ßÌåµç·ͼÈçͼ¶þËùʾ£®
r
¢ÛÈôÓÃͼһ£¬Ôòµç×èRxÁ½¶ËµÄµçѹΪU=I3£¨R+r3£©£¬Á÷¹ýµÄµçÁ÷Ϊ£ºI=I1-I3
¹Ê´ý²âµç×èΪ£º
ÈôÓÃͼһ£¬Ôò´ý²âµç×èRxºÍµçÁ÷±íA3Á½¶ËµÄµçѹΪU=£¨I1-I3£©R£¬Á÷¹ýµÄµçÁ÷Ϊ£ºI=I3
ËùÒÔÓУº
ËùÒÔ
¹Ê´ð°¸Îª£º£¨»ò£©£¬I1ΪA1µÄʾÊý£¬I3ΪA3µÄʾÊý£¬RΪ¶¨Öµµç×裬r3ΪA3µÄÄÚ×裮
µãÆÀ£º¶ÔÓÚÖ½´øÎÊÌâÒªÊìÁ·Ó¦ÓÃÔȱäËÙÖ±ÏßÔ˶¯µÄ¹æÂɺÍÍÆÂÛ½øÐнâ´ð£»¶ÔÓÚµçѧʵÑé½â¾öµÄ¹Ø¼üÊÇÃ÷ȷʵÑéÔ­Àí£¬ÕýÈ·Ñ¡Ôñ¿ØÖƵç·£¨·Öѹ¡¢ÏÞÁ÷£©ºÍµçÁ÷±íµÄÄÚÍâ½Ó·¨£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
¾«Ó¢¼Ò½ÌÍø£¨1£©ÔÚÓÃÂäÌå·¨ÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬Ä³Í¬Ñ§°´ÕÕÕýÈ·µÄ²Ù×÷Ñ¡µÃÖ½´øÈçͼ£®ÆäÖÐOÊÇÆðʼµã£¬A¡¢B¡¢CÊÇ´òµã¼ÆʱÆ÷Á¬Ðø´òϵÄ3¸öµã£¬ÒÑÖª´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçԴƵÂÊΪ50Hz£¬¸ÃͬѧÓúÁÃ׿̶ȳ߲âÁ¿Oµ½A¡¢B¡¢C¸÷µãµÄ¾àÀë·Ö±ðΪ9.51cm¡¢12.42cm¡¢15.7cm£®
¢ÙÕâÈý¸öÊý¾ÝÖв»·ûºÏÓÐЧÊý×Ö¶ÁÊýÒªÇóµÄÊÇ
 
cm£¬Ó¦¼Ç×÷
 
cm£®
¢ÚÈôÂäÌåÖÊÁ¿Îª0.1Kg£¬¸ÃͬѧÓÃËüÔÚOB¶ÎµÄÔ˶¯À´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£¬ÒÑÖªµ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.8m/s2£¬Ôò¸Ã¹ý³ÌÂäÌåÖØÁ¦ÊÆÄܵļõÉÙÁ¿Îª
 
J£¬¶¯ÄܵÄÔö¼ÓÁ¿Îª
 
J£®£¨¾ù±£Áô3λÓÐЧÊý×Ö£©
£¨2£©Ä³´ý²âµç×èRxµÄ×èÖµ´óÔ¼ÔÚ130¦¸¡«150¦¸Ö®¼ä£¬ÊµÑéÊÒÓÐÈçÏÂÆ÷²Ä£º
A£®µçÁ÷±íA1£¨Á¿³Ì0.6A¡¢ÄÚ×èr1ԼΪ0.2¦¸£©
B£®µçÁ÷±íA2£¨Á¿³Ì150mA¡¢ÄÚ×èr2ԼΪ3¦¸£©
C£®µçÁ÷±íA3£¨Á¿³Ì30mA¡¢ÄÚ×èr3Ϊ10¦¸£©
D£®µçѹ±íV£¨Á¿³Ì15V¡¢ÄÚ×èRVԼΪ20K¦¸£©
E£®¶¨Öµµç×èR0=30¦¸
F£®»¬¶¯±ä×èÆ÷R£¬×î´ó×èֵԼΪ10¦¸
G£®µçÔ´E£¨µç¶¯ÊÆ5V¡¢ÄÚ×è½ÏС£©
H£®¿ª¹ØS¡¢µ¼ÏßÈô¸É
¢ÙÒª¾¡Á¿×¼È·²âÁ¿RXµÄ×èÖµ£¬ÔÚÉÏÊöÆ÷²ÄÖУ¬Ó¦Ñ¡ÓõÄÊÇ
 
£®£¨ÌîÆ÷²ÄÇ°ÐòºÅµÄ×Öĸ£©
¢Ú²âÁ¿ÖÐÒªÇóËùÓõç±íµÄ¶ÁÊý²»µÃСÓÚÁ¿³ÌµÄÒ»°ë£¬ÇëÔÚÐéÏß¿òÖл­³ö²âÁ¿µç×èRxµÄʵÑéµç·£®£¨Í¼ÖÐÔª¼þÓÃÌâ¸ÉÖÐÏàÓ¦µÄ×Öĸ±ê×¢£©
¢ÛÓÃÒÑÖªÁ¿ºÍ²âµÃµÄÁ¿±íʾRx=
 
£¬ËµÃ÷ʽÖи÷×Öĸ±íʾµÄÎïÀíÁ¿£º
 
£®
ÔÚÓÃÂäÌå·¨ÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬Ä³Í¬Ñ§°´ÕÕÕýÈ·µÄ²Ù×÷Ñ¡È¡µÄÖ½´øÈçͼ£®ÆäÖÐOÊÇÆðʼµã£¬A¡¢B¡¢CÊÇ´òµã¼ÆʱÆ÷£¨ËùÓõçԴƵÂÊΪ50Hz£©Á¬Ðø´òϵÄ3¸öµã£®¸ÃͬѧÓúÁÃ׿̶ȳ߲âÁ¿Oµ½A¡¢B¡¢C¸÷µãµÄ¾àÀ룬²¢¼Ç¼ÔÚͼÖУ¨µ¥Î»£ºcm£©£®
£¨1£©¼×ͬѧÓÃÖØ´¸ÔÚOB¶ÎµÄÔ˶¯À´ÑéÖ¤»úеÄÜÊغ㣬ÒÑÖªµ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£¬ËûÓÃAC¶ÎµÄƽ¾ùËÙ¶È×÷Ϊ¸úBµã¶ÔÓ¦µÄÖØ´¸µÄ˲ʱËٶȣ¬Ôò¸Ã¶ÎÖØ´¸ÖØÁ¦ÊÆÄܵļõÉÙÁ¿Îª
1.22m
1.22m
£¬¶¯ÄܵÄÔö¼ÓÁ¿Îª
1.20m
1.20m
£¨¾ù±£Áô3λÓÐЧÊý×Ö£¬ÖØ´¸ÖÊÁ¿ÓÃm±íʾ£©£®ÔÚÎó²îÔÊÐíµÄ·¶Î§ÄڿɵóöµÄ½áÂÛÊÇ
ÖØÁ¦ÊÆÄܵļõСÁ¿µÈÓÚ¶¯ÄܵÄÔö¼ÓÁ¿£¬»úеÄÜÊغ㣮
ÖØÁ¦ÊÆÄܵļõСÁ¿µÈÓÚ¶¯ÄܵÄÔö¼ÓÁ¿£¬»úеÄÜÊغ㣮
£®
£¨2£©ÒÒͬѧ¸ù¾ÝͬһÌõÖ½´ø£¬Í¬Ò»×éÊý¾Ý£¬Ò²ÓÃÖØ´¸ÔÚOB¶ÎµÄÔ˶¯À´ÑéÖ¤»úеÄÜÊغ㣬Ëû½«´òµã¼ÆʱÆ÷´òϵĵÚÒ»¸öµãO¼ÇΪµÚ1¸öµã£¬Í¼ÖеÄBÊÇ´òµã¼ÆʱÆ÷´òϵĵÚ9¸öµã£®Òò´ËËûÓÃvB=gt¼ÆËã¸úBµã¶ÔÓ¦µÄÖØ´¸µÄ˲ʱËٶȣ¬µÃµ½¶¯ÄܵÄÔö¼ÓÁ¿Îª
1.23m
1.23m
£¬ÕâÑùÑé֤ʱ×ÜÊÇÖØÁ¦ÊÆÄܵļõÉÙÁ¿
СÓÚ
СÓÚ
£¨Ìî¡°´óÓÚ¡±¡¢¡°Ð¡ÓÚ¡±»ò¡°µÈÓÚ¡±£©¶¯ÄܵÄÔö¼ÓÁ¿£¬Ô­ÒòÊÇ
vÊÇ°´ÕÕ×ÔÓÉÂäÌå¼ÆËãµÄ£¬¶ÔÓ¦µÄÏÂÂä¸ß¶È±Èʵ¼Ê²âµÃµÄ¸ß¶ÈÒª´ó£®
vÊÇ°´ÕÕ×ÔÓÉÂäÌå¼ÆËãµÄ£¬¶ÔÓ¦µÄÏÂÂä¸ß¶È±Èʵ¼Ê²âµÃµÄ¸ß¶ÈÒª´ó£®
£®
£¨1£©ÔÚÓÃÂäÌå·¨ÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬Ä³Í¬Ñ§°´ÕÕÕýÈ·µÄ²Ù×÷Ñ¡µÃÖ½´øÈçͼ£®ÆäÖÐOÊÇÆðʼµã£¬A¡¢B¡¢CÊÇ´òµã¼ÆʱÆ÷Á¬Ðø´òϵÄ3¸öµã£¬ÒÑÖª´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçԴƵÂÊΪ50Hz£¬¸ÃͬѧÓúÁÃ׿̶ȳ߲âÁ¿Oµ½A¡¢B¡¢C¸÷µãµÄ¾àÀë·Ö±ðΪ9.51cm¡¢12.42cm¡¢15.7cm£®
¢ÙÕâÈý¸öÊý¾ÝÖв»·ûºÏÓÐЧÊý×Ö¶ÁÊýÒªÇóµÄÊÇ______cm£¬Ó¦¼Ç×÷______cm£®
¢ÚÈôÂäÌåÖÊÁ¿Îª0.1Kg£¬¸ÃͬѧÓÃËüÔÚOB¶ÎµÄÔ˶¯À´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£¬ÒÑÖªµ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.8m/s2£¬Ôò¸Ã¹ý³ÌÂäÌåÖØÁ¦ÊÆÄܵļõÉÙÁ¿Îª______J£¬¶¯ÄܵÄÔö¼ÓÁ¿Îª______J£®£¨¾ù±£Áô3λÓÐЧÊý×Ö£©
£¨2£©Ä³´ý²âµç×èRxµÄ×èÖµ´óÔ¼ÔÚ130¦¸¡«150¦¸Ö®¼ä£¬ÊµÑéÊÒÓÐÈçÏÂÆ÷²Ä£º
A£®µçÁ÷±íA1£¨Á¿³Ì0.6A¡¢ÄÚ×èr1ԼΪ0.2¦¸£©
B£®µçÁ÷±íA2£¨Á¿³Ì150mA¡¢ÄÚ×èr2ԼΪ3¦¸£©
C£®µçÁ÷±íA3£¨Á¿³Ì30mA¡¢ÄÚ×èr3Ϊ10¦¸£©
D£®µçѹ±íV£¨Á¿³Ì15V¡¢ÄÚ×èRVԼΪ20K¦¸£©
E£®¶¨Öµµç×èR0=30¦¸
F£®»¬¶¯±ä×èÆ÷R£¬×î´ó×èֵԼΪ10¦¸
G£®µçÔ´E£¨µç¶¯ÊÆ5V¡¢ÄÚ×è½ÏС£©
H£®¿ª¹ØS¡¢µ¼ÏßÈô¸É
¢ÙÒª¾¡Á¿×¼È·²âÁ¿RXµÄ×èÖµ£¬ÔÚÉÏÊöÆ÷²ÄÖУ¬Ó¦Ñ¡ÓõÄÊÇ______£®£¨ÌîÆ÷²ÄÇ°ÐòºÅµÄ×Öĸ£©
¢Ú²âÁ¿ÖÐÒªÇóËùÓõç±íµÄ¶ÁÊý²»µÃСÓÚÁ¿³ÌµÄÒ»°ë£¬ÇëÔÚÐéÏß¿òÖл­³ö²âÁ¿µç×èRxµÄʵÑéµç·£®£¨Í¼ÖÐÔª¼þÓÃÌâ¸ÉÖÐÏàÓ¦µÄ×Öĸ±ê×¢£©
¢ÛÓÃÒÑÖªÁ¿ºÍ²âµÃµÄÁ¿±íʾRx=______£¬ËµÃ÷ʽÖи÷×Öĸ±íʾµÄÎïÀíÁ¿£º______£®
¾«Ó¢¼Ò½ÌÍø

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø