ÌâÄ¿ÄÚÈÝ

ijѧϰС×éÀûÓÃ×ÔÓÉÂäϵÄÖØ´¸ºÍµç»ð»¨¼ÆʱÆ÷ÑéÖ¤»úеÄÜÊغ㣬ʵÑé×°ÖÃÈçͼ¼×Ëùʾ£®ÒÑÖªÖØ´¸µÄÖÊÁ¿Îªm£®
£¨1£©ÔÚij´ÎʵÑéÖУ¬ËûÃǵõ½Ò»Ìõµã¼£ÇåÎúµÄÖ½´ø£¬Ö½´øÉÏA¡¢B¡¢C¡¢DΪÏàÁÚ¼ÆÊýµã£¬²â³öËüÃÇÖ®¼äµÄ¾àÀë·Ö±ðΪh1¡¢h2¡¢h3£¬ÈçͼÒÒËùʾ£®

¢ÙÈôÖ½´øÉÏÁ½ÏàÁÚ¼ÆÊýµãµÄʱ¼ä¼ä¸ôΪT£¬Ôò´òÓ¡BµãʱÖØ´¸µÄËٶȴóСΪvB=
h1+h2
2T
h1+h2
2T
£»
¢ÚÈô´òÓ¡BµãºÍCµãʱÖØ´¸µÄËٶȷֱðΪvBºÍvC£¬ÔòÑéÖ¤´ÓBµãµ½CµãµÄÔ˶¯¹ý³ÌÖУ¬ÖØ´¸»úеÄÜÊغãµÄ¹ØϵʽΪ
1
2
v
2
C
-
1
2
v
 
2
B
=gh2
1
2
v
2
C
-
1
2
v
 
2
B
=gh2
£®
£¨2£©¸ÃѧϰС×éͨ¹ý¶à´ÎʵÑé·¢ÏÖ£¬ÖØ´¸¼õÉÙµÄÊÆÄÜ×ÜÊÇÂÔ´óÓÚÖØ´¸¶¯ÄܵÄÔö¼Ó£¬ÇëÄã¼òҪ˵Ã÷ÆäÖеÄÔ­Òò
ÓÉÓÚʵÑé¹ý³ÌÖÐĦ²Á×èÁ¦µÄ´æÔÚ£¬ÖØÁ¦ÊÆÄÜÓÐÒ»²¿·Öת»¯¸øÁËĦ²Á×èÁ¦×ö¹¦²úÉúµÄÄÚÄÜ
ÓÉÓÚʵÑé¹ý³ÌÖÐĦ²Á×èÁ¦µÄ´æÔÚ£¬ÖØÁ¦ÊÆÄÜÓÐÒ»²¿·Öת»¯¸øÁËĦ²Á×èÁ¦×ö¹¦²úÉúµÄÄÚÄÜ
£®
·ÖÎö£º¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯ÖУ¬Ê±¼äÖеãµÄ˲ʱËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȣ¬¿ÉÒԵóöBµãµÄ˲ʱËٶȴóС£¬¸ù¾Ý¹¦ÄܹØϵ¿ÉµÃ³öÕýÈ·±í´ïʽ£®
½â´ð£º½â£º£¨1£©¢Ù¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯ÖУ¬Ê±¼äÖеãµÄ˲ʱËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȣ¬µÃ³öBµãµÄ˲ʱËٶȴóС·Ö±ðΪ£º
vB=
xAC
tAC
=
h1+h2
2T
£¬
¢ÚÎïÌå´ÓBµ½DµÄ¹ý³ÌÖÐÖØÁ¦ÊÆÄܼõСÁ¿ÊÇmgh2
¶¯ÄÜÔö¼ÓÁ¿ÊÇ
1
2
m
v
2
C
-
1
2
mv
 
2
B

ÒªÑéÖ¤ÎïÌå´ÓBµ½CµÄ¹ý³ÌÖлúеÄÜÊÇ·ñÊغ㣬ÔòÐèÂú×ã
1
2
v
2
C
-
1
2
v
 
2
B
=gh2¹Øϵ£¬ÎïÌåµÄ»úеÄÜÊغ㣮
£¨2£©ÓÉÓÚʵÑé¹ý³ÌÖÐĦ²Á×èÁ¦µÄ´æÔÚ£¬ÖØÁ¦ÊÆÄÜÓÐÒ»²¿·Öת»¯¸øÁËĦ²Á×èÁ¦×ö¹¦²úÉúµÄÄÚÄÜ£¬ËùÒÔÖØ´¸¼õÉÙµÄÊÆÄÜ×ÜÊÇÂÔ´óÓÚÖØ´¸¶¯ÄܵÄÔö¼Ó£®
¹Ê´ð°¸Îª£º£¨1£©¢Ù
h1+h2
2T

¢Ú
1
2
v
2
C
-
1
2
v
 
2
B
=gh2
£¨2£©ÓÉÓÚʵÑé¹ý³ÌÖÐĦ²Á×èÁ¦µÄ´æÔÚ£¬ÖØÁ¦ÊÆÄÜÓÐÒ»²¿·Öת»¯¸øÁËĦ²Á×èÁ¦×ö¹¦²úÉúµÄÄÚÄÜ
µãÆÀ£ºÕýÈ·ÀûÓÃËùѧÎïÀí¹æÂɽâ¾öʵÑéÎÊÌ⣬ÊìÁ·Ó¦ÓÃÎïÀí»ù±¾¹æÂÉ£¬Òò´ËÕâµãÔÚƽʱѵÁ·ÖÐÒªÖصã¼ÓÇ¿£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

£¨17·Ö£©£¨1£©Ä³ÎïÀíÐËȤС×é²ÉÓÃÈçͼËùʾµÄ×°ÖÃÉîÈëÑо¿Æ½Å×Ô˶¯¡£ÖÊÁ¿·Ö±ðΪºÍµÄA¡¢BСÇò´¦ÓÚͬһ¸ß¶È£¬MΪAÇòÖÐÐijõʼʱÔÚˮƽµØÃæÉϵĴ¹Ö±Í¶Ó°¡£ÓÃС´¸´ò»÷µ¯ÐÔ½ðÊôƬ£¬Ê¹AÇòÑØˮƽ·½Ïò·É³ö£¬Í¬Ê±ËÉ¿ªBÇò£¬BÇò×ÔÓÉÏÂÂä¡£AÇòÂäµ½µØÃæNµã´¦£¬BÇòÂäµ½µØÃæPµã´¦¡£²âµÃ=0.04kg£¬=0.05kg£¬BÇò¾àµØÃæµÄ¸ß¶ÈÊÇ1.225m£¬M¡¢Nµã¼äµÄ¾àÀëΪ1.500m£¬ÔòBÇòÂäµ½PµãµÄʱ¼äÊÇ____________s£¬AÇòÂäµØʱµÄ¶¯ÄÜÊÇ__________J¡££¨ºöÂÔ¿ÕÆø×èÁ¦£¬gÈ¡9.8£©

£¨2£©Ä³Ñ§Ï°Ð¡×éµÄͬѧÄâ̽¾¿Ð¡µÆÅÝLµÄ·ü°²ÌØÐÔÇúÏߣ¬¿É¹©Ñ¡ÓõÄÆ÷²ÄÈçÏ£º
СµÆÅÝL£¬¹æ¸ñ¡°4.0V£¬0.7A¡±£»
µçÁ÷±íA1£¬Á¿³Ì3A£¬ÄÚ×èԼΪ£»
µçÁ÷±íA2£¬Á¿³Ì0.6A£¬ÄÚ×裻
µçѹ±íV£¬Á¿³Ì3V£¬ÄÚ×裻
±ê×¼µç×裬×èÖµ£»
±ê×¼µç×裬×èÖµ£»
»¬¶¯±ä×èÆ÷£¬×èÖµ·¶Î§£»
ѧÉúµçÔ´E£¬µç¶¯ÊÆ6V£¬ÄÚ×è²»¼Æ£»
¿ª¹ØS¼°µ¼ÏßÈô¸É¡£
¢Ù¼×ͬѧÉè¼ÆÁËÈçͼ1ËùʾµÄµç·À´½øÐвâÁ¿£¬µ±Í¨¹ýLµÄµçÁ÷Ϊ0.46Aʱ£¬µçѹ±íµÄʾÊýÈçͼ2Ëùʾ£¬´ËʱLµÄµç×èΪ________________¡£

¢ÚÒÒͬѧÓÖÉè¼ÆÁËÈçͼ3ËùʾµÄµç·À´½øÐвâÁ¿£¬µçѹ±íÖ¸ÕëÖ¸ÔÚ×î´ó¿Ì¶Èʱ£¬¼ÓÔÚLÉϵĵçѹֵÊÇ_________________V¡£
¢ÛѧϰС×éÈÏΪҪÏë¸ü׼ȷµØÃè»æ³öLÍêÕûµÄ·ü°²ÌØÐÔÇúÏߣ¬ÐèÒªÖØÐÂÉè¼Æµç·¡£ÇëÄãÔÚÒÒͬѧµÄ»ù´¡ÉÏÀûÓÃËù¹©Æ÷²Ä£¬ÔÚͼ4ËùʾµÄÐéÏß¿òÄÚ²¹»­³öʵÑéµç·ͼ£¬²¢ÔÚͼÉϱêÃ÷ËùÑ¡Æ÷²Ä´úºÅ¡£

£¨17·Ö£©£¨1£©Ä³ÎïÀíÐËȤС×é²ÉÓÃÈçͼËùʾµÄ×°ÖÃÉîÈëÑо¿Æ½Å×Ô˶¯¡£ÖÊÁ¿·Ö±ðΪºÍµÄA¡¢BСÇò´¦ÓÚͬһ¸ß¶È£¬MΪAÇòÖÐÐijõʼʱÔÚˮƽµØÃæÉϵĴ¹Ö±Í¶Ó°¡£ÓÃС´¸´ò»÷µ¯ÐÔ½ðÊôƬ£¬Ê¹AÇòÑØˮƽ·½Ïò·É³ö£¬Í¬Ê±ËÉ¿ªBÇò£¬BÇò×ÔÓÉÏÂÂä¡£AÇòÂäµ½µØÃæNµã´¦£¬BÇòÂäµ½µØÃæPµã´¦¡£²âµÃ=0.04kg£¬=0.05kg£¬BÇò¾àµØÃæµÄ¸ß¶ÈÊÇ1.225m£¬M¡¢Nµã¼äµÄ¾àÀëΪ1.500m£¬ÔòBÇòÂäµ½PµãµÄʱ¼äÊÇ____________s£¬AÇòÂäµØʱµÄ¶¯ÄÜÊÇ__________J¡££¨ºöÂÔ¿ÕÆø×èÁ¦£¬gÈ¡9.8£©

£¨2£©Ä³Ñ§Ï°Ð¡×éµÄͬѧÄâ̽¾¿Ð¡µÆÅÝLµÄ·ü°²ÌØÐÔÇúÏߣ¬¿É¹©Ñ¡ÓõÄÆ÷²ÄÈçÏ£º

СµÆÅÝL£¬¹æ¸ñ¡°4.0V£¬0.7A¡±£»

µçÁ÷±íA1£¬Á¿³Ì3A£¬ÄÚ×èԼΪ£»

µçÁ÷±íA2£¬Á¿³Ì0.6A£¬ÄÚ×裻

µçѹ±íV£¬Á¿³Ì3V£¬ÄÚ×裻

±ê×¼µç×裬×èÖµ£»

±ê×¼µç×裬×èÖµ£»

»¬¶¯±ä×èÆ÷£¬×èÖµ·¶Î§£»

ѧÉúµçÔ´E£¬µç¶¯ÊÆ6V£¬ÄÚ×è²»¼Æ£»

¿ª¹ØS¼°µ¼ÏßÈô¸É¡£

¢Ù¼×ͬѧÉè¼ÆÁËÈçͼ1ËùʾµÄµç·À´½øÐвâÁ¿£¬µ±Í¨¹ýLµÄµçÁ÷Ϊ0.46Aʱ£¬µçѹ±íµÄʾÊýÈçͼ2Ëùʾ£¬´ËʱLµÄµç×èΪ________________¡£

¢ÚÒÒͬѧÓÖÉè¼ÆÁËÈçͼ3ËùʾµÄµç·À´½øÐвâÁ¿£¬µçѹ±íÖ¸ÕëÖ¸ÔÚ×î´ó¿Ì¶Èʱ£¬¼ÓÔÚLÉϵĵçѹֵÊÇ_________________V¡£

¢ÛѧϰС×éÈÏΪҪÏë¸ü׼ȷµØÃè»æ³öLÍêÕûµÄ·ü°²ÌØÐÔÇúÏߣ¬ÐèÒªÖØÐÂÉè¼Æµç·¡£ÇëÄãÔÚÒÒͬѧµÄ»ù´¡ÉÏÀûÓÃËù¹©Æ÷²Ä£¬ÔÚͼ4ËùʾµÄÐéÏß¿òÄÚ²¹»­³öʵÑéµç·ͼ£¬²¢ÔÚͼÉϱêÃ÷ËùÑ¡Æ÷²Ä´úºÅ¡£

 

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

¾«Ó¢¼Ò½ÌÍø