£¨1£©Ä³Í¬Ñ§ÔÚ×öÃè»æСµçµÆÅݵķü°²ÌØÐÔÇúÏßʵÑéʱ£¬Î󽫵çÁ÷±íºÍµçѹ±í½Ó³ÉÈçͼ£¨1£©¼×ËùʾµÄµç·£¬ÆäËû²¿·ÖÁ¬½ÓÕýÈ·£¬½ÓͨµçÔ´ºó£¬Ð¡µÆÅݵķ¢¹âÇé¿öÊÇ______£®Èô±¾ÊµÑé¸ø¶¨µçѹ±í£¨ÄÚ×èԼΪ5k¦¸£©¡¢µçÁ÷±í£¨ÄÚ×èԼΪ4¦¸£©¡¢»¬Ïß±ä×èÆ÷¡¢µçÔ´¡¢¿ª¹Ø¡¢Ð¡µÆÅÝ£¨¶î¶¨µçѹ3.8V£©¼°µ¼ÏßÈô¸É£¬ÒªÇóСµÆÅݵĵçѹ´ÓÁ㿪ʼÔö´ó£¬ÊµÑéӦѡÔñͼ£¨1£©ÒÒÖеĵç·ͼÊÇ______£®¸ÃͬѧÃè³öµÄ·ü°²ÌØÐÔÇúÏßÈçͼ£¨1£©±ûËùʾ£¬´ÓͼÖпÉ֪СµÆÅݵÄ×èÖµËæСµÆÅÝÁ½¶ËµÄµçѹµÄÔö´ó¶ø______£¬µ±¸øСµçµÆÅݼӶµçѹ3.8Vʱ£¬Æäµç×èΪ______¦¸£¨´ð°¸È¡ÈýλÓÐЧÊý×Ö£©£®

£¨2£©ÔÚÓôòµã¼ÆʱÆ÷ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬ÖÊÁ¿m=1.00kgÖØÎï×ÔÓÉÏÂÂ䣬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öһϵÁе㣮Èçͼ£¨2£©ËùʾΪѡȡµÄÒ»Ìõ·ûºÏʵÑéÒªÇóµÄÖ½´ø£¬OΪµÚÒ»¸öµã£¬A¡¢B¡¢CΪ´ÓºÏÊÊλÖÿªÊ¼Ñ¡È¡µÄÈý¸öÁ¬Ðøµã£¨ÆäËûµãδ»­³ö£©£®ÒÑÖª´òµã¼ÆʱÆ÷ÿ¸ô0.02s´òÒ»´Îµã£¬µ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£®ÄÇô£º

¢ÙÖ½´øµÄ______¶Ë£¨Ñ¡Ìî¡°×ó¡±»ò¡°ÓÒ¡¯£©ÓëÖØÎïÏàÁ¬£»
¢Ú¸ù¾Ýͼ£¨2£©ËùµÃµÄÊý¾Ý£¬Ó¦È¡Í¼£¨2£©ÖÐOµãºÍ______µãÀ´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£»
¢Û´ÓOµãµ½ËùÈ¡µã£¬ÖØÎïµÄÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷EP=______J£¬¶¯ÄÜÔö¼ÓÁ¿¡÷EK=______J£»£¨½á¹ûÈ¡3λÓÐЧÊý×Ö£©
¢ÜʵÑéµÄ½áÂÛÊÇ______£®
¡¾´ð°¸¡¿·ÖÎö£º£¨1£©½â´ð±¾ÌâÐèÒªÕÆÎÕ£ºµçѹ±íÄÚ×èºÜ´ó£¬½«µçѹ±í´®Èëµç·£¬µ¼Öµç·ÖеçÁ÷ºÜС£»»¬¶¯±ä×èÆ÷µÄ·ÖѹºÍÏÞÁ÷½Ó·¨µÄÇø±ð£¬ÄÄЩÇé¿ö±ØÐë²ÉÓ÷Öѹ½Ó·¨£»Ëæ×ÅζÈÉý¸ßµÆË¿µÄµç×èÂÊÔö´ó£¬Òò´ËµÆÅݵç×èËæζÈÉý¸ß¶øÔö´ó£»¸ù¾Ýͼ±ûÇó³öµçµÆÅݼӶµçѹ3.8VʱµÄµçÁ÷£¬È»ºó¸ù¾ÝÅ·Ä·¶¨Âɼ´¿ÉÇó½â£®
£¨2£©¢Ù¸ù¾ÝA¡¢B¡¢CÈý¸öÁ¬ÐøµÄµãÖ®¼ä¾àÀë±ä»¯¿ÉÒÔÅжÏÖ½´øµÄÄǶ˺ÍÖØÎïÏàÁ¬£®
¢ÚÑéÖ¤»úеÄÜÊغãʱ£¬ÒªÑ¡È¡ÄÜÇó³öËٶȵÄÄǵã½øÐÐÑéÖ¤£®
¢Û¸ù¾Ý±íÖÐÊý¾Ý¿ÉÒÔÇó³öÖØÁ¦ÊÆÄܱ仯£¬¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯ÖÐƽ¾ùËٶȵÈÓÚÖмäʱ¿ÌµÄ˲ʱËٶȣ¬Çó³öBµãËٶȣ¬¼´¿ÉÇó³ö¶¯ÄÜÔöÁ¿£®
¢Ü±¾ÊµÑéµÄÄ¿µÄ¾ÍÊÇÑéÖ¤ÖØÎïÏÂÂä¹ý³ÌÖлúеÄÜÊغ㣮
½â´ð£º½â£º£¨1£©µçѹ±íÄÚ×èºÜ´ó£¬½«µçѹ±í´®Èëµç·£¬µ¼Öµç·ÖеçÁ÷ºÜС£¬¹ÊСµÆÅݲ»ÁÁ£»ÓÉͼ±û¿ÉÖª¸ÃʵÑéÖеçѹ´ÓÁãÖ𽥱仯£¬Òò´ËÑ¡ÓõÄÊÇ·Öѹµç·£¬¹ÊÑ¡ £¨b£©£»µÆÅݵç×èËæ×ŵçѹµÄÔö´óÖð½¥Ôö´ó£»¸ù¾Ýͼ±û¿É֪СµçµÆÅݼӶµçѹ3.8Vʱ£¬µçÁ÷ΪI=0.32A£¬¹ÊÆäµç×èΪ£®
¹Ê´ð°¸Îª£ºÐ¡µÆÅݲ»ÁÁ£¬£¨b£©£¬Öð½¥Ôö´ó£¨»òÔö´ó£¬11.9£®
£¨2£©¢ÙA¡¢B¡¢CÖ®¼ä¾àÀëÖð½¥Ôö´ó£¬ÖØÎï×öÔȱäËÙÔ˶¯£¬¹ÊÖØÎïºÍÖ½´ø×ó¶ËÏàÁ¬£®
¹Ê´ð°¸Îª£º×ó£®
¢Ú¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯ÖÐƽ¾ùËٶȵÈÓÚÖмäʱ¿ÌµÄ˲ʱËٶȣ¬¿ÉÒÔÇó³öBµãËٶȣ¬¹ÊӦȡͼ£¨2£©ÖÐOµãºÍBµãÀ´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®
¹ÊÑ¡£ºB£®
¢ÛÖØÁ¦ÊÆÄܵļõСÁ¿Îª£º¡÷EP=mgh£¬´øÈëÊý¾ÝµÃ£º¡÷EP=1.88J£¬
BµãµÄËÙ¶ÈΪ£º
¶¯ÄܵÄÔöÁ¿Îª£º
¹Ê´ð°¸Îª£º1.88£¬1.84£®
¢Ü±¾ÊµÑéµÄÄ¿µÄΪÑéÖ¤ÖØÎïÏÂÂä¹ý³ÌÖлúеÄÜÊغ㣮
¹Ê´ð°¸Îª£ºÔÚÎó²î·¶Î§ÄÚ£¬ÖØÎïÏÂÂä¹ý³ÌÖлúеÄÜÊغ㣮
µãÆÀ£º±¾Ìâ±È½ÏÈ«ÃæµÄ¿¼²éÁ˵çѧʵÑéÃè»æСµçµÆÅݵķü°²ÌØÐÔÇúÏߺÍÁ¦Ñ§ÊµÑéÖ¤»úеÄÜÊغ㶨ÂÉ£¬¶ÔÓÚʵÑéÎÊÌâÒ»¶¨ÒªÃ÷ȷʵÑéÔ­Àí£¬È»ºó²ÅÄܸù¾ÝËùѧ֪ʶ½â´ð£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Í¬Ñ§ÔÚ×ö¡°Ãè»æСµçÖéµÄ·ü°²ÌØÐÔÇúÏß¡±µÄʵÑéÖУ¬¿ª¹ØS±ÕºÏ֮ǰ£¬Í¼¼×Ö묶¯±ä×èÆ÷µÄ»¬Æ¬Ó¦¸ÃÖÃÓÚ
A
A
¶Ë£¨Ñ¡Ìî¡°A¡±¡¢¡°B¡±»ò¡°ABÖм䡱£©£¬²¢Óñʻ­Ïß´úÌæµ¼Ïߣ¬½«Í¼¼×ÖеÄʵÑéµç·Á¬½ÓÍêÕû£®

£¨2£©ÊµÑéÖвâµÃÓйØÊý¾ÝÈç±í£ºµÃµ½ÈçÏÂÒ»×éUºÍIµÄÊý¾Ý£º
  ±àºÅ 1 2 3 4 5 6 7 8
U£¨·ü£© 0 0.50 1.00 1.50 2.00 2.20 2.60 3.00
I£¨°²£© 0 0.050 0.100 0.150 0.180 0.190 0.200 0.205
µÆÅÝ·¢¹âÇé¿ö ²»ÁÁ¡¡¡¡¡¡¡¡¡¡¡¡¡¡Î¢ÁÁ¡¡¡¡¡¡¡¡Öð½¥±äÁÁ¡¡¡¡¡¡¡¡¡¡¡¡Õý³£·¢¹â
¸ù¾ÝÉÏ±í£¬ÔÚͼÒÒÉÏ»­³öI-UͼÏߣ®
£¨3£©´ÓͼÏßÉÏ¿ÉÒÔ¿´³ö£¬µ±¹¦ÂÊÖð½¥Ôö´óʱ£¬µÆË¿µç×èµÄ±ä»¯Çé¿öÊÇ
±ä´ó
±ä´ó
£®
£¨4£©µ±µÆÅݵçѹΪ1.4VʱµÄ¹¦ÂÊΪ
0.21
0.21
W£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

¢ñ¡¢£¨1£©Ä³Í¬Ñ§ÔÚ×öÃè»æСµÆÅݵķü°²ÌØÐÔÇúÏßʵÑéʱ£¬Î󽫵çÁ÷±íºÍµçѹ±í½Ó³ÉÈçͼ1¼×ËùʾµÄµç·£¬ÆäËû²¿·ÖÁ¬½ÓÕýÈ·£¬½ÓͨµçÔ´ºó£¬Ð¡µÆÅݵķ¢¹âÇé¿öÊÇ
СµÆÅݲ»ÁÁ
СµÆÅݲ»ÁÁ
£®Èô±¾ÊµÑé¸ø¶¨µçѹ±í£¨ÄÚ×èԼΪ5k¦¸£©¡¢µçÁ÷±í£¨ÄÚ×èԼΪ4¦¸£©¡¢»¬Ïß±ä×èÆ÷¡¢µçÔ´¡¢¿ª¹Ø¡¢Ð¡µÆÅÝ£¨¶î¶¨µçѹ3.8V£©¼°µ¼ÏßÈô¸É£¬ÒªÇóСµÆÅݵĵçѹ´ÓÁ㿪ʼÔö´ó£¬ÊµÑéӦѡÔñͼ1ÒÒÖеĵç·ͼÊÇ
£¨b£©
£¨b£©
£®¸ÃͬѧÃè³öµÄ·ü°²ÌØÐÔÇúÏßÈçͼ1±ûËùʾ£¬´Óͼ1ÖпÉ֪СµÆÅݵÄ×èÖµËæСµÆÅÝÁ½¶ËµÄµçѹµÄÔö´ó¶ø
Öð½¥Ôö´ó£¨»òÔö´ó£©
Öð½¥Ôö´ó£¨»òÔö´ó£©
£¬µ±¸øСµçµÆÅݼӶµçѹ3.8Vʱ£¬Æäµç×èΪ
11.9
11.9
¦¸£¨´ð°¸È¡ÈýλÓÐЧÊý×Ö£©£®

¢ò¡¢ÓÃÈçͼ2¼×ËùʾµÄ×°ÖÃ×ö¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±ÊµÑ飮´òµã¼ÆʱÆ÷µÄ´òµãÖÜÆÚΪT£¬ÖØ´¸µÄÖÊÁ¿Îªm£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£®

¢ÙÍê³ÉÏÂÃ沿·ÖʵÑé²½ÖèµÄÏà¹ØÄÚÈÝ£º
A£®°´Í¼Ê¾µÄ×°Öð²×°Æ÷¼þ£®
B£®½«´òµã¼ÆʱÆ÷½Óµ½
½»Á÷
½»Á÷
£¨Ìî¡°Ö±Á÷¡±»ò¡°½»Á÷¡±£©µçÔ´ÉÏ£®
C£®ÏÈ
½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¨»ò½ÓͨµçÔ´£©
½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¨»ò½ÓͨµçÔ´£©
£¬ÔÙ
ÊÍ·ÅÖ½´ø
ÊÍ·ÅÖ½´ø
£¬ÈÃÖØ´¸ÍÏ×ÅÖ½´ø´Ó¸ß´¦×ÔÓÉÏÂÂ䣮
D£®¡­
¢ÚÈçͼ2ÒÒÊÇʵÑé´ò³öµÄÖ½´ø£¬OÊÇËÙ¶ÈΪÁãµÄµã£¬A¡¢B¡¢CÊÇ´ÓºÏÊÊλÖÃÑ¡È¡µÄÈý¸öÁ¬Ðøµã£¨ÆäËûµãδ»­³ö£©£¬Á¿µÃd1¡¢d2¡¢d3£®È¡Í¼2ÒÒÖÐOºÍ
B
B
£¨Ìî¡°A¡±¡¢¡°B¡±»ò¡°C¡±£©µãÀ´ÑéÖ¤»úеÄÜÊغ㶨ÂɱȽϼò½Ý·½±ã£¬´òµã¼ÆʱÆ÷´òϸõãʱÖØ´¸µÄ¶¯ÄÜEk=
(d3-d1)2
8T2
m
(d3-d1)2
8T2
m
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Í¬Ñ§ÔÚ×öÃè»æСµçµÆÅݵķü°²ÌØÐÔÇúÏßʵÑéʱ£¬Î󽫵çÁ÷±íºÍµçѹ±í½Ó³ÉÈçͼ£¨1£©¼×ËùʾµÄµç·£¬ÆäËû²¿·ÖÁ¬½ÓÕýÈ·£¬½ÓͨµçÔ´ºó£¬Ð¡µÆÅݵķ¢¹âÇé¿öÊÇ
 
£®Èô±¾ÊµÑé¸ø¶¨µçѹ±í£¨ÄÚ×èԼΪ5k¦¸£©¡¢µçÁ÷±í£¨ÄÚ×èԼΪ4¦¸£©¡¢»¬Ïß±ä×èÆ÷¡¢µçÔ´¡¢¿ª¹Ø¡¢Ð¡µÆÅÝ£¨¶î¶¨µçѹ3.8V£©¼°µ¼ÏßÈô¸É£¬ÒªÇóСµÆÅݵĵçѹ´ÓÁ㿪ʼÔö´ó£¬ÊµÑéӦѡÔñͼ£¨1£©ÒÒÖеĵç·ͼÊÇ
 
£®¸ÃͬѧÃè³öµÄ·ü°²ÌØÐÔÇúÏßÈçͼ£¨1£©±ûËùʾ£¬´ÓͼÖпÉ֪СµÆÅݵÄ×èÖµËæСµÆÅÝÁ½¶ËµÄµçѹµÄÔö´ó¶ø
 
£¬µ±¸øСµçµÆÅݼӶµçѹ3.8Vʱ£¬Æäµç×èΪ
 
¦¸£¨´ð°¸È¡ÈýλÓÐЧÊý×Ö£©£®
¾«Ó¢¼Ò½ÌÍø
£¨2£©ÔÚÓôòµã¼ÆʱÆ÷ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬ÖÊÁ¿m=1.00kgÖØÎï×ÔÓÉÏÂÂ䣬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öһϵÁе㣮Èçͼ£¨2£©ËùʾΪѡȡµÄÒ»Ìõ·ûºÏʵÑéÒªÇóµÄÖ½´ø£¬OΪµÚÒ»¸öµã£¬A¡¢B¡¢CΪ´ÓºÏÊÊλÖÿªÊ¼Ñ¡È¡µÄÈý¸öÁ¬Ðøµã£¨ÆäËûµãδ»­³ö£©£®ÒÑÖª´òµã¼ÆʱÆ÷ÿ¸ô0.02s´òÒ»´Îµã£¬µ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£®ÄÇô£º
¾«Ó¢¼Ò½ÌÍø
¢ÙÖ½´øµÄ
 
¶Ë£¨Ñ¡Ìî¡°×ó¡±»ò¡°ÓÒ¡¯£©ÓëÖØÎïÏàÁ¬£»
¢Ú¸ù¾Ýͼ£¨2£©ËùµÃµÄÊý¾Ý£¬Ó¦È¡Í¼£¨2£©ÖÐOµãºÍ
 
µãÀ´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£»
¢Û´ÓOµãµ½ËùÈ¡µã£¬ÖØÎïµÄÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷EP=
 
J£¬¶¯ÄÜÔö¼ÓÁ¿¡÷EK=
 
J£»£¨½á¹ûÈ¡3λÓÐЧÊý×Ö£©
¢ÜʵÑéµÄ½áÂÛÊÇ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011Äê¸ß¿¼ÎïÀíµ÷ÑÐÊÔ¾í£¨2Ô·ݣ©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

£¨1£©Ä³Í¬Ñ§ÔÚ×öÃè»æСµçµÆÅݵķü°²ÌØÐÔÇúÏßʵÑéʱ£¬Î󽫵çÁ÷±íºÍµçѹ±í½Ó³ÉÈçͼ£¨1£©¼×ËùʾµÄµç·£¬ÆäËû²¿·ÖÁ¬½ÓÕýÈ·£¬½ÓͨµçÔ´ºó£¬Ð¡µÆÅݵķ¢¹âÇé¿öÊÇ______£®Èô±¾ÊµÑé¸ø¶¨µçѹ±í£¨ÄÚ×èԼΪ5k¦¸£©¡¢µçÁ÷±í£¨ÄÚ×èԼΪ4¦¸£©¡¢»¬Ïß±ä×èÆ÷¡¢µçÔ´¡¢¿ª¹Ø¡¢Ð¡µÆÅÝ£¨¶î¶¨µçѹ3.8V£©¼°µ¼ÏßÈô¸É£¬ÒªÇóСµÆÅݵĵçѹ´ÓÁ㿪ʼÔö´ó£¬ÊµÑéӦѡÔñͼ£¨1£©ÒÒÖеĵç·ͼÊÇ______£®¸ÃͬѧÃè³öµÄ·ü°²ÌØÐÔÇúÏßÈçͼ£¨1£©±ûËùʾ£¬´ÓͼÖпÉ֪СµÆÅݵÄ×èÖµËæСµÆÅÝÁ½¶ËµÄµçѹµÄÔö´ó¶ø______£¬µ±¸øСµçµÆÅݼӶµçѹ3.8Vʱ£¬Æäµç×èΪ______¦¸£¨´ð°¸È¡ÈýλÓÐЧÊý×Ö£©£®

£¨2£©ÔÚÓôòµã¼ÆʱÆ÷ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬ÖÊÁ¿m=1.00kgÖØÎï×ÔÓÉÏÂÂ䣬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öһϵÁе㣮Èçͼ£¨2£©ËùʾΪѡȡµÄÒ»Ìõ·ûºÏʵÑéÒªÇóµÄÖ½´ø£¬OΪµÚÒ»¸öµã£¬A¡¢B¡¢CΪ´ÓºÏÊÊλÖÿªÊ¼Ñ¡È¡µÄÈý¸öÁ¬Ðøµã£¨ÆäËûµãδ»­³ö£©£®ÒÑÖª´òµã¼ÆʱÆ÷ÿ¸ô0.02s´òÒ»´Îµã£¬µ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£®ÄÇô£º

¢ÙÖ½´øµÄ______¶Ë£¨Ñ¡Ìî¡°×ó¡±»ò¡°ÓÒ¡¯£©ÓëÖØÎïÏàÁ¬£»
¢Ú¸ù¾Ýͼ£¨2£©ËùµÃµÄÊý¾Ý£¬Ó¦È¡Í¼£¨2£©ÖÐOµãºÍ______µãÀ´ÑéÖ¤»úеÄÜÊغ㶨ÂÉ£»
¢Û´ÓOµãµ½ËùÈ¡µã£¬ÖØÎïµÄÖØÁ¦ÊÆÄܼõÉÙÁ¿¡÷EP=______J£¬¶¯ÄÜÔö¼ÓÁ¿¡÷EK=______J£»£¨½á¹ûÈ¡3λÓÐЧÊý×Ö£©
¢ÜʵÑéµÄ½áÂÛÊÇ______£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸