ÌâÄ¿ÄÚÈÝ

£¨10·Ö£©Ä³ÊµÑéС×éÓÃѧ¹ýµÄ·½·¨Ñо¿Íæ¾ßµç¶¯»úµÄ·ü°²ÌØÐÔÇúÏߣ¬ÈçͼÊÇËû×¼±¸µÄÆ÷²ÄºÍÉè¼ÆµÄʵÑéµç·£¬ÆäÖдý²âµç¶¯»úMµÄ¶î¶¨µçÁ÷Ϊ1£®0A£¬¶î¶¨µçѹΪ4£®5 V¡£µç·ÖÐÒѾ­½ÓºÃÁ˲¿·Öµ¼Ïß¡£
£¨1£©ÎªÁËÍê³É±¾ÊµÑ飬ÇëÓñʻ­Ïßµ±µ¼Ïߣ¬½«Í¼ÖеÄʵÎïÁ¬³ÉÍêÕûµÄµç·¡££¨ÒªÇóͨ¹ýµç¶¯»úµÄµçÁ÷ÄÜ´ÓÁ㿪ʼ±ä»¯£©
£¨2£©Ï±íΪʵÑéС×éµÄʵÑé¼Ç¼£¬Í¬Ê±ÒѾ­¸ù¾Ý±í¸ñÖÐÊý¾ÝÔÚ×ø±êÖ½ÉÏÃèµã×÷³öͨ¹ýµç¶¯»úµÄµçÁ÷IËæµçѹU±ä»¯Í¼ÏßÈçͼ¡£

     
¸ù¾ÝÕâ·ùI£­UͼÏß×÷³öµÄÓйØÅжÏÕýÈ·µÄÊÇ£º      

A£®µç¶¯»úÔÚת¶¯Ç°¡¢ºó¶¼¿É¿´×÷´¿µç×è
B£®µç¶¯»úÔÚת¶¯Ç°¿É¿´×÷´¿µç×裻ת¶¯ºó²»ÄÜ¿´×÷´¿µç×è
C£®µç¶¯»úÔÚת¶¯Ç°²»ÄÜ¿´×÷´¿µç×裻ת¶¯ºó¿É¿´×÷´¿µç×è
D£®µç¶¯»úÔÚת¶¯Ç°¡¢ºó¶¼²»ÄÜ¿´×÷´¿µç×è
£¨3£©¸ù¾ÝÕâ·ùI-UͼÏß¿ÉÇó³öµç¶¯»úת¶¯ÇÒͨ¹ýµÄµçÁ÷Ϊ0£®90Aʱ£¬µç¶¯»úµÄÊä³ö¹¦ÂÊΪ 
         W£®£¨±£Áô3λÓÐЧÊý×Ö£©

(1)µç·ͼ¼û½âÎö£»(2)B£»(3)1.6W£»

½âÎöÊÔÌâ·ÖÎö£º£¨1£©£ºÊµÑéÒªÇóµçÁ÷´ÓÁãµ÷¿ÉÖª±ä×èÆ÷Ó¦²ÉÓ÷Öѹʽ½Ó·¨£¬Á¬ÏßͼÈçͼËùʾ£º

£¨2£©£º¸ù¾ÝÌâÒâ¿ÉÖª£¬×ª¶¯Ç°£¬µç¶¯»úÊÇÒ»´¿µç×裬ÈÔÈ»·ûºÏÅ·Ä·¶¨ÂÉ£¬µ«×ª¶¯ºó²»ÊÇ´¿µç×裬ËùÒÔBÕýÈ·£»
£¨3£©£º¸ù¾Ýͼ2µÄI-UͼÏó¿ÉÇó³öµç¶¯»úÄÚ×èΪ£º£¬
µç¶¯»úµÄÊä³ö¹¦ÂÊΪ£º£¬´úÈëÊý¾Ý½âµÃ£º
¿¼µã£º²âµç¶¯»úµÄ·ü°²ÇúÏß¼°µç¹¦ÂÊ

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

ͼÖÐΪ¡°Ñé֤ţ¶ÙµÚ¶þ¶¨ÂÉ¡±µÄʵÑé×°ÖÃʾÒâͼ¡£Å̺ÍÖØÎïµÄ×ÜÖÊÁ¿Îªm£¬Ð¡³µºÍíÀÂëµÄ×ÜÖÊÁ¿ÎªM¡£ÊµÑéÖÐÓÃÅ̺ÍÖØÎï×ÜÖØÁ¦µÄ´óС×÷ΪϸÏ߶ÔС³µÀ­Á¦µÄ´óС¡£

¢ÙʵÑéÖУ¬ÎªÁËʹϸÏ߶ÔС³µµÄÀ­Á¦µÈÓÚС³µËùÊܵĺÏÍâÁ¦£¬Ïȵ÷½Ú³¤Ä¾°åÒ»¶Ë¶¨»¬Âֵĸ߶ȣ¬Ê¹Ï¸ÏßÓ볤ľ°åƽÐС£½ÓÏÂÀ´»¹ÐèÒª½øÐеÄÒ»Ïî²Ù×÷ÊÇ     £¨ÌîдËùÑ¡Ñ¡ÏîµÄÐòºÅ£©¡£
A£®½«³¤Ä¾°åˮƽ·ÅÖã¬ÈÃС³µÁ¬×ÅÒѾ­´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´ø£¬¸ø´òµã¼ÆʱÆ÷ͨµç£¬µ÷½ÚmµÄ´óС£¬Ê¹Ð¡³µÔÚÅ̺ÍÖØÎïµÄÇ£ÒýÏÂÔ˶¯£¬´Ó´ò³öµÄÖ½´øÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯¡£
B£®½«³¤Ä¾°åµÄÓҶ˵æÆðÊʵ±µÄ¸ß¶È£¬ÈÃС³µÁ¬×ÅÒѾ­´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´ø£¬³·È¥Å̺ÍÖØÎ¸ø´òµã¼ÆʱÆ÷ͨµç£¬ÇáÍÆС³µ£¬´Ó´ò³öµÄÖ½´øÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯¡£
C£®½«³¤Ä¾°åµÄÓҶ˵æÆðÊʵ±µÄ¸ß¶È£¬³·È¥Ö½´øÒÔ¼°Å̺ÍÖØÎÇáÍÆС³µ£¬¹Û²ìÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯¡£
¢ÚʵÑéÖÐÒª½øÐÐÖÊÁ¿mºÍMµÄÑ¡È¡£¬ÒÔÏÂ×îºÏÀíµÄÒ»×éÊÇ     ¡£
A£®M=20g£¬m=10g¡¢15g¡¢20g¡¢25g¡¢30g¡¢40g
B£®M=200g£¬m=20g¡¢40g¡¢60g¡¢80g¡¢100g¡¢120g
C£®M=400g£¬m =10g¡¢15g¡¢20g¡¢25g¡¢30g¡¢40g
D£®M=400g£¬m ="20" g¡¢40g¡¢60g¡¢80g¡¢100g¡¢120g
¢ÛͼÖÐÊÇʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬A¡¢B¡¢C¡¢D¡¢E¡¢F¡¢GΪ7¸öÏàÁڵļÆÊýµã£¬Á¿³öÏàÁڵļÆÊýµãÖ®¼äµÄ¾àÀë·Ö±ðΪx1¡¢x2¡¢x3¡¢x4¡¢x5¡¢x6¡£ÒÑÖªÏàÁڵļÆÊýµãÖ®¼äµÄʱ¼ä¼ä¸ôΪT£¬¹ØÓÚС³µµÄ¼ÓËÙ¶ÈaµÄ¼ÆËã·½·¨£¬²úÉúÎó²î½ÏСµÄËã·¨ÊÇ¡¡¡¡¡¡¡¡¡£

A£®
B£®
C£®
D£®

ijͬѧÔÚ¡°Ñо¿Æ½Å×ÎïÌåµÄÔ˶¯¡±µÄʵÑéÖУ¬Í¨¹ýÃèµã·¨»­³öСÇòƽÅ×Ô˶¯µÄ¹ì¼££¬²¢Çó³öСÇòƽÅ×Ô˶¯µÄ³õËٶȺÍÅ×ÎïÏß·½³Ì¡£ËûÏȵ÷Õûб²Û¹ìµÀʹ²Û¿ÚÄ©¶Ëˮƽ£¬È»ºóÔÚ·½¸ñÖ½ÉϽ¨Á¢ºÃÖ±½Ç×ø±êϵxOy£¬½«·½¸ñÖ½ÉϵÄ×ø±êÔ­µãOÓëСÇòÔÚ¹ìµÀ²Û¿ÚÄ©¶ËµÄÇòÐÄÖغϣ¬OyÖáÓëÖØ´¸ÏßÖغϣ¬OxÖáˮƽ£¨Èçͼ¼×£©¡£ÊµÑéÖÐʹСÇòÿ´Î¶¼´Óб²Ûͬһ¸ß¶ÈÓɾ²Ö¹¹öÏ£¬¾­¹ýÒ»¶Îˮƽ¹ìµÀºóÅ׳ö¡£ÒÀ´Î¾ùÔÈÏÂÒÆˮƽµ²°åµÄλÖ㬷ֱðµÃµ½Ð¡ÇòÔÚµ²°åÉϵÄÂäµã£¬²¢ÔÚ·½¸ñÖ½Éϱê³öÏàÓ¦µÄµã¼££¬ÔÙÓÃƽ»¬ÇúÏß½«·½¸ñÖ½Éϵĵ㼣Á¬³ÉСÇòµÄÔ˶¯¹ì¼££¨ÈçͼÒÒËùʾ£©¡£ÒÑÖª·½¸ñ±ß³¤ÎªL=5cm£¬ÖØÁ¦¼ÓËÙ¶ÈΪg=10m/s2£¬¼ÆËã½á¹ûÈ¡Á½Î»ÓÐЧÊý×Ö¡£

£¨1£©Ð¡ÇòƽÅ׵ijõËÙ¶Èv0=       £»
£¨2£©Ð¡ÇòÔ˶¯µÄ¹ì¼£·½³ÌµÄ±í´ïʽΪy=       x2¡£
£¨3£©ÏÂÁÐÄÄЩ˵·¨ÊÇÕýÈ·µÄ       

A£®Ê¹Ð±²ÛÄ©¶ËµÄÇÐÏß±£³Öˮƽ
B£®Ã¿´ÎʹСÇò´Ó²»Í¬µÄ¸ß¶È¹öÏÂ
C£®¸ÖÇòÓëб²Û¼äµÄĦ²ÁʹʵÑéµÄÎó²îÔö´ó
D£®¼ÆËãV0ʱ£¬ËùÑ¡ÔñµÄµãÓ¦Àë×ø±êÔ­µãÉÔԶЩ

ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬ÒÑÖª´òµã¼ÆʱÆ÷ÿ¸ôT£½0.02 s´òÒ»¸öµã£¬µ±µØµÄÖØÁ¦¼ÓËÙ¶ÈΪg£½9.80 m/s2¡£
£¨1£©ÔÚʵÑéÆ÷²ÄÑ¡ÔñÉÏ£¬³ýÁË´òµã¼ÆʱÆ÷¡¢Ö½´ø¡¢¸´Ð´Ö½¡¢Ìú¼Ų̈¡¢Ö½´ø¼ÐºÍÖØÎïÍâ,»¹ÐèҪѡÔñÏÂÁÐÄÄЩÆ÷²Ä£¿_________ £¨Ìî×Öĸ´úºÅ£©¡£
A£®Ö±Á÷µçÔ´¡¡¡¡ ¡¡B£®½»Á÷µçÔ´     C£®µ¯»É³Ó          D£®ºÁÃ׿̶ȳß
E£®Ììƽ¼°íÀÂë      F£®Ãë±í


£¨2£©ÏȽÓͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¬ÔÙÊÍ·ÅÖØÎ´ò³öµÄijÌõÖ½´øÈçÉÏͼËùʾ£¬OÊÇÖ½´ø¾²Ö¹Ê±´ò³öµÄµã£¬A¡¢B¡¢CÊÇÑ¡È¡µÄ3¸öÁ¬Ðø¼Æʱµã£¬²â³öËüÃǵ½OµãµÄ¾àÀ룬ÀûÓøø³öµÄÊý¾ÝÇó³ö´òBµãʱÖØÎïµÄËÙ¶ÈvB£½_______ m/s¡££¨¼ÆËã½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©¡£
£¨3£©ÈôʵÑéÖÐÑ¡ÓõÄÖØÎïÖÊÁ¿Îª1.00kg£¬ÖØÎïÔÚ¼ÆÊýµãO¡¢B¶ÔÓ¦µÄÔ˶¯¹ý³ÌÖУ¬ÖØÁ¦ÊÆÄܵļõÉÙÁ¿¦¤Ep=      J,¶¯ÄܵÄÔö¼ÓÁ¿¦¤Ek=       J¡££¨¼ÆËã½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©¡££¨4£©¸ù¾ÝËù²âÁ¿Êý¾Ý£¬»¹¿ÉÒÔÇó³öÖØÎïÔÚ¼ÆÊýµãO¡¢B¶ÔÓ¦µÄÔ˶¯¹ý³ÌÖÐËùÊܵ½µÄƽ¾ù×èÁ¦Ô¼Îª      N£¨¼ÆËã½á¹û±£ÁôһλÓÐЧÊý×Ö£©£¬¸Ã×èÁ¦µÄÀ´Ô´Ö÷ÒªÓУº              ¡£

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

¾«Ó¢¼Ò½ÌÍø