£¨9·Ö£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±ÊµÑéʱ£¬´Ó´òϵÄÈô¸ÉÖ½´øÖÐÑ¡³öÁËÈçͼËùʾµÄÒ»Ìõ£¨Ã¿Á½µã¼ä»¹ÓÐ4¸öµãûÓл­³öÀ´£©£¬Í¼ÖÐÉϲ¿µÄÊý×ÖΪÏàÁÚÁ½¸ö¼ÆÊýµã¼äµÄ¾àÀë¡£´òµã¼ÆʱÆ÷µÄµçԴƵÂÊΪ50Hz¡£

Èç¹ûÓÃs1¡¢s2¡¢s3¡¢s4¡¢s5¡¢s6À´±íʾ¸÷ÏàÁÚÁ½¸ö¼ÆÊýµã¼äµÄ¾àÀë¡£ÓÉÕâЩÒÑÖªÊý¾Ý¼ÆË㣺¸ÃÔȱäËÙÖ±ÏßÔ˶¯µÄ¼ÓËٶȵıí´ïʽΪa=__________________¡£Æä´óСΪa="___" _m/s2¡£ÓëÖ½´øÉÏDµãÏà¶ÔÓ¦µÄ˲ʱËÙ¶Èv="_________" m/s¡££¨´ð°¸¾ùÒªÇó±£Áô3λÓÐЧÊý×Ö£©

a=[£¨s4+s5+s6£©-£¨s1+s2+s3£©]/9T2.  1.93      1.39

½âÎöÊÔÌâ·ÖÎö£ºÓÉÖð²î·¨µÃ¼ÓËٶȱí´ïʽΪ£¨s4+s5+s6£©-£¨s1+s2+s3£©=a£¨3T£©2£¬µÃa=[£¨s4+s5+s6£©-£¨s1+s2+s3£©]/9T2£¬´øÈëÊý¾ÝÇóµÃa="1.93" m/s2¡£Ö½´øÉÏDµã¶ÔÓ¦Ö½´øµÄ˲ʱËÙ¶ÈΪCE¼äµÄƽ¾ùËٶȣ¬ÏàÁÚ¼ÆÊýµã¼äʱ¼äΪ0.1s£¬ÇóµÃDµã¶ÔÓ¦ËÙ¶ÈΪ1.39m/s¡£
¿¼µã£º±¾Ì⿼²é´òµã¼ÆʱÆ÷²âÁ¿¼ÓËٶȺÍËٶȡ£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

(10·Ö)ijͬѧÓÃͼÖÐËùʾµÄʵÑé×°ÖÃÑо¿Ð¡³µÔÚбÃæÉϵÄÔ˶¯¡£ÊµÑé²½ÖèÈçÏ£º

a£®°²×°ºÃʵÑéÆ÷²Ä¡£
b£®½ÓͨµçÔ´ºó£¬ÈÃÍÏ×ÅÖ½´øµÄС³µÑØƽ°åбÃæÏòÏÂÔ˶¯£¬Öظ´¼¸´Î¡£Ñ¡³öÒ»Ìõµã¼£±È½ÏÇåÎúµÄÖ½´ø£¬ÉáÈ¥¿ªÊ¼Ãܼ¯µÄµã¼££¬´Ó±ãÓÚ²âÁ¿µÄµã¿ªÊ¼£¬Ã¿Á½¸ö´òµã¼ä¸ôÈ¡Ò»¸ö¼ÆÊýµã£¬ÈçÏÂͼÖÐ0¡¢1¡¢2¡­¡¢6µãËùʾ¡£

c£®²âÁ¿1¡¢2¡¢3¡¢¡­¡¢6¼ÆÊýµãµ½0¼ÆÊýµãµÄ¾àÀ룬·Ö±ð¼Ç×÷£ºS1¡¢S2¡¢S3¡¢¡­¡¢S6¡£
d£®Í¨¹ý²âÁ¿ºÍ¼ÆË㣬¸ÃͬѧÅжϳöС³µÑØƽ°å×öÔȼÓËÙÖ±ÏßÔ˶¯¡£
e£®·Ö±ð¼ÆËã³öS1¡¢S2¡¢S3¡¢¡­¡¢S6Óë¶ÔӦʱ¼äµÄ±ÈÖµ¡£
f£®ÒÔΪ×Ý×ø±ê¡¢tΪºá×ø±ê£¬±ê³öÓë¶ÔӦʱ¼ätµÄ×ø±êµã£¬»­³ö¡ªtͼÏß¡£
½áºÏÉÏÊöʵÑé²½Ö裬ÇëÄãÍê³ÉÏÂÁÐÈÎÎñ£º
¢ÙʵÑéÖУ¬³ý´òµã¼ÆʱÆ÷£¨º¬Ö½´ø¡¢¸´Ð´Ö½£©¡¢Ð¡³µ¡¢Æ½°å¡¢Ìú¼Ų̈¡¢µ¼Ïß¼°¿ª¹ØÍ⣬ÔÚÏÂÃæµÄÒÇÆ÷ºÍÆ÷²ÄÖУ¬±ØÐëʹÓõÄÓР      ºÍ         ¡££¨ÌîÑ¡Ïî´úºÅ£©

A£®µçѹºÏÊʵÄ50 Hz½»Á÷µçÔ´B£®µçѹ¿Éµ÷µÄÖ±Á÷µçÔ´
C£®¿Ì¶È³ßD£®Ãë±í
E£®Ììƽ                   F£®ÖØ´¸
¢Ú½«×îС¿Ì¶ÈΪ1 mmµÄ¿Ì¶È³ßµÄ0¿ÌÏßÓë0¼ÆÊýµã¶ÔÆ룬0¡¢1¡¢2¡¢5¼ÆÊýµãËùÔÚλÖÃÈçͼËùʾ£¬ÔòS2£½       cm£¬S5£½        cm¡£

¢Û¸ÃͬѧÔÚͼÖÐÒѱê³ö1¡¢3¡¢4¡¢6¼ÆÊýµã¶ÔÓ¦µÄ×ø±ê£¬ÇëÄãÔÚ¸ÃͼÖбê³öÓë2¡¢5Á½¸ö¼ÆÊýµã¶ÔÓ¦µÄ×ø±êµã£¬²¢»­³ö¡ªtͼ¡£

¢Ü¸ù¾Ý¡ªtͼÏßÅжϣ¬ÔÚ´ò0¼ÆÊýµãʱ£¬
С³µµÄËÙ¶Èv0£½       m/s£»
ËüÔÚбÃæÉÏÔ˶¯µÄ¼ÓËÙ¶Èa£½       m/s2¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

Ó÷ü°²·¨²âµç³ØµÄµç¶¯ÊƺÍÄÚµç×裬ÓÉÓڵ練æÔÚÎÊÌ⣬µ±µç¼üS±ÕºÏºó£¬Òƶ¯±ä×èÆ÷µÄ»¬Æ¬Pʱ£¬³öÏÖÏÂÁÐÒì³£ÏÖÏó:
(1)µçÁ÷±íʾÊý¿É±ä£¬µçѹ±íʾÊýʼÖÕΪÁã
(2)µçÁ÷±íʾÊýΪÁ㣬µçѹ±íʾÊý²»±ä
(3)µçÁ÷±íÉÕ»µ
(4)µçÁ÷±íʾÊý²»±ä£¬µçѹ±íʾÊý¿É±ä
ÒÔÉÏËÄÖÖÇé¿öÓëÏÂÃæµç·ͼ¶ÔÓ¦µÄÇé¿ö·Ö±ðÊÇ£º(1)¶ÔÓ¦     £¬(2)¶ÔÓ¦     £¬
(3)¶ÔÓ¦      £¬(4)¶ÔÓ¦       .

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

(8·Ö)ÓÃͼ¼×ËùʾװÖÃÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬ËùÓý»Á÷µçÔ´µÄƵÂÊΪ50Hz£¬µÃµ½ÈçͼÒÒËùʾµÄÖ½´ø¡£Ñ¡È¡Ö½´øÉÏ´ò³öµÄÁ¬ÐøÎå¸öµãA¡¢B¡¢C¡¢D¡¢E£¬²â³öAµã¾àÆðµãOµÄ¾àÀëΪs0£½19.00cm£¬µãA¡¢C¼äµÄ¾àÀëΪs1£½8.36cm£¬µãC¡¢E¼äµÄ¾àÀëΪs2£½9.88cm£¬gÈ¡9.8m/s2£¬²âµÃÖØÎïµÄÖÊÁ¿Îª100g¡£

¢ÅÏÂÁÐ×ö·¨ÕýÈ·µÄÓР      £»
A£®Í¼¼×ÖÐÁ½ÏÞλ¿×±ØÐëÔÚͬһÊúÖ±ÏßÉÏ
B£®ÊµÑéÇ°£¬ÊÖÓ¦Ìáסֽ´øÉ϶ˣ¬²¢Ê¹Ö½´øÊúÖ±
C£®ÊµÑéʱ£¬ÏÈ·ÅÊÖËÉ¿ªÖ½´øÔÙ½Óͨ´òµã¼ÆʱÆ÷µçÔ´
D£®Êý¾Ý´¦Àíʱ£¬Ó¦Ñ¡ÔñÖ½´øÉϾàÀë½Ï½üµÄÁ½µã×÷Ϊ³õ¡¢Ä©Î»ÖÃ
¢ÆÑ¡È¡O¡¢CÁ½µãΪ³õĩλÖÃÑо¿»úеÄÜÊغ㡣ÖØÎï¼õÉÙµÄÖØÁ¦ÊÆÄÜÊÇ     J£¬´òÏÂCµãʱÖØÎïµÄËÙ¶ÈÊÇ     m/s¡£(½á¹û±£ÁôÈýλÓÐЧÊý×Ö)
¢ÇʵÑéÖУ¬ÖØÎï¼õСµÄÖØÁ¦ÊÆÄÜ×ÜÊÇÂÔ´óÓÚÔö¼ÓµÄ¶¯ÄÜ£¬Ð´³öÒ»Ìõ²úÉúÕâÒ»ÏÖÏóµÄÔ­Òò           

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

(12·Ö)ijͬѧ½«Á¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬È»ºó°ÑÉþµÄÒ»¶Ë¹Ì¶¨ÔÚ´«¸ÐÆ÷µÄ¹Ò¹³ÉÏ£¬ÓÃÀ´²âÁ¿Éþ¶ÔС³µµÄÀ­Á¦£¬Ì½¾¿ÔÚС³µ¼°´«¸ÐÆ÷×ÜÖÊÁ¿²»±äʱ¼ÓËٶȸúËüÃÇËùÊÜÀ­Á¦µÄ¹Øϵ£¬¸ù¾ÝËù²âÊý¾ÝÔÚ×ø±êϵÖÐ×÷³öÁËÈçͼËùʾµÄͼÏñ¡£

(1)ͼÏñ²»¹ý×ø±êÔ­µãµÄÔ­ÒòÊÇ_____________£»
(2)±¾ÊµÑéÖÐÊÇ·ñÈÔÐèҪϸɳºÍÍ°µÄ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µºÍ´«¸ÐÆ÷µÄ×ÜÖÊÁ¿______(Ìî ¡°ÊÇ¡±»ò¡°·ñ¡±)£»
(3)ÓÉͼÏñÇó³öС³µºÍ´«¸ÐÆ÷µÄ×ÜÖÊÁ¿Îª_________kg£»Í¨¹ýʵÑéµÃµ½ÈçͼËùʾµÄÖ½´ø£¬Ö½´øÉϵãΪС³µÔ˶¯Æðʼʱ¿ÌËù´òµÄµã£¬Ñ¡È¡Ê±¼ä¼ä¸ôΪ 0.1s µÄÏàÁÚ¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢G¡£ÔòС³µÔ˶¯µÄ¼ÓËÙ¶ÈΪ=        (±£Áô3λÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

(10·Ö)ÓÃÈçͼʵÑé×°ÖÃÑéÖ¤m1¡¢m2×é³ÉµÄϵͳ»úеÄÜÊغ㡣ÎïÌåm1ÓÃÒ»ÇáÉþÈƹý¶¨»¬ÂÖÓëm2ÏàÁ¬¡£ÏÖ½«m2´Ó¸ß´¦Óɾ²Ö¹¿ªÊ¼ÊÍ·ÅÏÂÂäÒ»¶¨µÄ¸ß¶Èh£¬´ø×Åm1ÏòÉÏÍÏ×ŵÄÖ½´øͨ¹ý´òµã¼ÆʱÆ÷´ò³öһϵÁеĵ㣬¶ÔÖ½´øÉϵĵ㼣½øÐвâÁ¿£¬¼´¿ÉÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡£ÏÂͼ¸ø³öµÄÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´ø£º0ÊÇ´òϵĵÚÒ»¸öµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµã(ͼÖÐδ±ê³ö)£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÒÑÖªm1= 50g¡¢m2=150g£¬Ôò(²»¼ÆÖ½´øµÄÖÊÁ¿£¬gÈ¡9.8m/s2½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö)


(1)ÔÚÖ½´øÉÏ´òϼÇÊýµã5ʱm1¡¢m2µÄËÙ¶Èv £½ ________________ m/s£»
(2)ÔÚ´òÏÂ0~~5µã¹ý³ÌÖÐϵͳ¶¯ÄܵÄÔöÁ¿DEk£½ _______________ J£¬ÏµÍ³ÊÆÄܵļõÉÙÁ¿DEp£½_____________ J£»Óɴ˵óöµÄ½áÂÛÊÇ£ºÔÚÎó²îÔÊÐíµÄ·¶Î§ÄÚ£¬m1¡¢m2×é³ÉµÄϵͳ»úеÄÜÊغ㣮                                                                  
(3)Èôijͬѧ×÷³ö¡ªhͼÏñÈçͼ£¬ÓÉͼ¿ÉËãµÃÖØÁ¦¼ÓËÙ¶Èg £½_____________ m/s2¡£
(4)²é×ÊÁÏ·¢ÏÖ£º(3)ÎÊÖÐËãµÃµÄÖØÁ¦¼ÓËٶȱȵ±µØÖØÁ¦¼ÓËÙ¶ÈС£¬Ö÷ÒªÔ­ÒòÊÇ            ___.¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨1£©ÔÚ¡°Ì½¾¿ÇóºÏÁ¦µÄ·½·¨¡±µÄʵÑéÖУ¬ÆäÖеÄÈý¸öʵÑé²½Ö裺¢ÙÔÚˮƽ·ÅÖõÄľ°åÉϵæÒ»ÕÅ°×Ö½£¬°ÑÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚ°åÉÏ£¬ÁíÒ»¶ËË©Á½¸ùϸÏߣ¬Í¨¹ýϸÏßͬʱÓÃÁ½¸ö²âÁ¦¼Æ»¥³É½Ç¶ÈµØÀ­ÏðƤÌõ£¬Ê¹ËüÓëϸÏߵĽáµãµ½´ïijһλÖÃOµã£¬ÔÚ°×Ö½ÉϼÇÏÂOµãºÍÁ½²âÁ¦¼ÆµÄ¶ÁÊýF1ºÍF2.
¢ÚÔÚÖ½Éϸù¾ÝF1ºÍF2µÄ´óС£¬Ó¦ÓÃƽÐÐËıßÐζ¨Ôò×÷ͼÇó³öºÏÁ¦F.
¢ÛÖ»ÓÃÒ»Ö»²âÁ¦¼Æͨ¹ýϸÉþÀ­ÏðƤÌõ£¬Ê¹ËüµÄÉ쳤Á¿ÓëÁ½²âÁ¦¼ÆÀ­Ê±Ïàͬ£¬¼ÇÏ´Ëʱ²â
Á¦¼ÆµÄ¶ÁÊýF¡äºÍϸÉþµÄ·½Ïò.
ÒÔÉÏÈý¸ö²½ÖèÖоùÓдíÎó»òÊè©£¬ÇëÖ¸³ö´íÔÚÄÄÀ
¢ÙÖÐÊÇ                                     
¢ÚÖÐÊÇ                                     
¢ÛÖÐÊÇ                                     
(2) ijͬѧÔÚ¼ÒÖг¢ÊÔÑé֤ƽÐÐËıßÐζ¨Ôò£¬ËûÕÒµ½ÈýÌõÏàͬµÄÏðƤ½î £¨×ñÑ­ºú¿Ë¶¨ÂÉ£©ºÍÈô¸ÉСÖØÎÒÔ¼°¿Ì¶È³ß¡¢Èý½Ç°å¡¢Ç¦±Ê¡¢Ï¸Éþ¡¢°× Ö½¡¢¶¤×Ó£¬Éè¼ÆÁËÈçÏÂʵÑ飺½«Á½ÌõÏðƤ½îµÄÒ»¶Ë·Ö±ð¹ÒÔÚǽÉϵÄÁ½¸ö¶¤×ÓA¡¢BÉÏ£¬ÁíÒ»¶ËÓëµÚÈýÌõÏðƤ½îÁ¬½Ó£¬½áµãΪO£¬½«µÚÈýÌõÏðƤ½îµÄÁíÒ»¶Ëͨ¹ýϸÉþ¹ÒÒ»ÖØÎÈçͼ7Ëùʾ¡£

¢ÙΪÍê³ÉʵÑ飬ÏÂÊö²Ù×÷ÖбØÐèµÄÊÇ            ¡£
A. ¶¤×ÓA¡¢B±ØÐëÔÚͬһˮƽ¸ß¶È
B£®¼Ç¼Ðü¹ÒÖØÎïºó½áµãOµÄλÖÃ
C£®²âÁ¿Ï¸ÉþµÄ³¤¶È
D£®²âÁ¿ÏðƤ½îµÄÔ­³¤
E£®²âÁ¿Ðü¹ÒÖØÎïºóÏñƤ½îµÄ³¤¶È
¢ÚÓûÀûÓÃÏÖÓÐÆ÷²Ä£¬¸Ä±äÌõ¼þÔÙ´ÎÑéÖ¤£¬¿É²ÉÓõķ½·¨ÊÇ              ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

°ÑÁ¿³ÌΪ3 mAµÄµçÁ÷±í¸Ä×°³ÉÅ·Ä·±í£¬Æä½á¹¹ÈçͼËùʾ£¬ÆäÖеç³ØµÄµç¶¯ÊÆE£½1.5 V£¬¸Ä×°ºó£¬½«Ô­À´µçÁ÷±í3 mAµÄ¿Ì¶È¶¨Îªµç×èµÄ¡°0¡±¿Ì¶È£¬Ôò2 mA¿Ì¶È´¦±ê____________¦¸£¬1 mA¿Ì¶È´¦Ó¦±ê__________ ¦¸¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

ijͬѧÓ÷ü°²·¨²âÁ¿Ò»¸öδ֪µç×èRxµÄ×èÖµ£¨×èֵԼΪ6¦¸£©£¬³ý±»²âµç×èÍ⣬»¹ÓÐÈçÏÂʵÑéÆ÷²Ä£º

A£®Ñ§ÉúµçÔ´£¨Ö±Á÷ÎÈѹ3V£©
B£®µçÁ÷±íA£¨Á¿³Ì0¡«0.6 A£¬ÄÚ×èԼΪ0. 125¦¸£©
C£®µçѹ±íV£¨Á¿³Ì0¡«3 V£¬ÄÚ×è3k¦¸£©
D£®»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµ20¦¸£©
E£®¿ª¹Ø¡¢µ¼ÏßµÈ
¢ÙÇë¸ù¾ÝËùÌṩµÄÆ÷²Ä£¬ÔÚÓÒͼËùʾµÄ·½¿òÖл­³öºÏÀíµÄʵÑéµç·ͼ£®

¢ÚÕâÖÖÁ¬½Ó·½·¨ÊôÓÚµçÁ÷±í     £¨Ñ¡Ìî¡°ÄÚ½Ó¡±»ò¡°Íâ½Ó¡±£©£»²âµÃµÄµç×èÖµ±ÈÕæʵµç×èֵƫ     £¨Ñ¡Ìî¡°´ó¡±»ò¡°Ð¡¡±£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸