ijͬѧÔÚ×ö¡°ÀûÓõ¥°Ú²âÖØÁ¦¼ÓËٶȡ±ÊµÑéÖУ¬ÏȲâµÃ°ÚÏß³¤Îª97.50cm£»ÓÃ10·Ö¶ÈµÄÓα꿨³ß²âµÃСÇòÖ±¾¶µÄ¶ÁÊýÈçͼËùʾ£¬È»ºóÓÃÃë±í¼Ç¼Á˵¥°ÚÕñ¶¯50´ÎËùÓõÄʱ¼ä

£¨1£©¸Ãµ¥°ÚµÄ°Ú³¤Îª¡¡¡¡¡¡¡¡cm¡£
£¨2£©Èç¹û¸Ãͬѧ²âµÃµÄgֵƫ´ó£¬¿ÉÄܵÄÔ­ÒòÊÇ(¡¡ ¡¡)

A£®¼Ç¼°Ú³¤Ê±Î󽫰ÚÇòµÄÖ±¾¶×÷Ϊ°ë¾¶
B£®¿ªÊ¼¼Æʱʱ£¬Ãë±í¹ý³Ù°´ÏÂ
C£®°ÚÏßÉ϶ËÀι̵ØϵÓÚÐüµã£¬°Ú¶¯ÖгöÏÖËɶ¯£¬Ê¹°ÚÏß³¤¶ÈÔö¼ÓÁË
D£®ÊµÑéÖÐÎó½«29´ÎÈ«Õñ¶¯ÊýΪ30´Î

£¨3£©ÎªÁËÌá¸ßʵÑ龫¶È£¬ÔÚʵÑéÖпɸı伸´Î°Ú³¤l£¬²â³öÏàÓ¦µÄÖÜÆÚT£¬´Ó¶øµÃ³öÒ»×é¶ÔÓ¦µÄlÓëTµÄÊýÖµ£¬ÔÙÒÔlΪºá×ø±ê£¬T2Ϊ×Ý×ø±ê£¬½«ËùµÃÊý¾ÝÁ¬³ÉÖ±ÏßÈçͼËùʾ£¬Ôò²âµÃµÄÖØÁ¦¼ÓËÙ¶Èg£½¡¡¡¡¡¡m/s2¡£

£¨1£©98.42£»£¨2£©ABD£»£¨3£©9.87£¨»ò¦Ð2£©¡£

½âÎöÊÔÌâ½âÎö£º£¨1£©Óα꿨³ß¶ÔÓ¦µÄ¶ÁÊýΪ18.4mm£¬¹Êµ¥°ÚµÄ°Ú³¤Îª97.50cm+=98.42cm£»
£¨2£©Èç¹ûAÖмǼ°Ú³¤Ê±Î󽫰ÚÇòµÄÖ±¾¶×÷Ϊ°ë¾¶£¬Ôò°Ú³¤µÄÖµ»áÆ«´ó£¬Ôò´úÈ빫ʽg=¼ÆËãµÄÖµÒ²»áÆ«´ó£¬¹ÊAÊÇ¿ÉÄܵģ»BÖпªÊ¼¼Æʱʱ£¬Ãë±í¹ý³Ù°´Ï£¬Ôò¼Ç¼µÄʱ¼äƫС£¬¸ù¾Ý¹«Ê½Ò²¿ÉµÃ£¬gµÄֵƫ´ó£¬BÒ²ÊÇ¿ÉÄܵģ»CÖаÚÏß³¤¶ÈÔö¼ÓÁË£¬µ«²âÁ¿Ê±ÆäÖÜÆڵĴóСҲ»á·¢Éú¸Ä±ä£¬¹Ê¼ÆËãµÄgÖµÊDz»±äµÄ£»Èç¹ûʵÑéÖÐÎó½«29´ÎÈ«Õñ¶¯ÊýΪ30´Î£¬ÔòµÃ³öµÄÖÜÆÚÖµ»áƫС£¬ÔògµÄÖµ»áÆ«´ó£¬DÒ²ÊÇ¿ÉÄܵġ£
£¨3£©ÓÉͼÏñ¿ÉµÃ£¬µ±°Ú³¤Îª1mʱ£¬ÆäÖÜÆÚµÄƽ·½´óСΪ4s2£¬¹ÊÖØÁ¦¼ÓËÙ¶Èg£½=9.87m/s2£¨»ò¦Ð2 m/s2£©
¿¼µã£ºÓõ¥°Ú²âÖØÁ¦¼ÓËٶȡ£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨6·Ö£©ÔÚ×ö¡¶Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡·µÄʵÑéʱ£¬Ä³Í¬Ñ§µÃµ½Ò»ÌõÓôòµã¼ÆʱÆ÷´òϵÄÖ½´øÈçͼËùʾ£¬²¢ÔÚÆäÉÏÈ¡ÁËA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢GµÈ7¸ö¼ÆÊýµã£¬Ã¿ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä»¹ÓÐ4¸öµã£¬Í¼ÖÐûÓл­³ö£¬´òµã¼ÆʱÆ÷½ÓÖÜÆÚΪT=0.02sµÄ½»Á÷µçÔ´¡£¾­¹ý²âÁ¿µÃ£ºd1=3.62cm£¬d2=8.00cm£¬d3=13.2cm£¬d4=19.19cm£¬d5=25.99cm£¬d6=33.61cm¡£

£¨1£©¼ÆËãvF=_____________£»
£¨2£©ÎïÌåµÄ¼ÓËÙ¶È=____________£»
£¨3£©Èç¹ûµ±Ê±µçÍøÖн»±äµçÁ÷µÄƵÂÊÊÇ£¬¶ø×öʵÑéµÄͬѧ²¢²»ÖªµÀ£¬ÄÇô¼ÓËٶȵIJâÁ¿ÖµÓëʵ¼ÊÖµÏà±È_____________£¨Ñ¡Ìƫ´ó¡¢Æ«Ð¡»ò²»±ä£©¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨9·Ö£©ÓÃÈçͼËùʾµÄ×°ÖÃ×öʵÑ飬Ñо¿¡°ÔÚÎïÌåÖÊÁ¿²»±äʱ£¬Æä¼ÓËÙ¶ÈÓëºÏÍâÁ¦µÄ¹Øϵ¡±¡£

£¨1£©ÊµÑéÖÐÓôòµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öһϵÁе㼣Èçͼ£¬ÏàÁڵ㼣֮¼äµÄʱ¼ä¼ä¸ô¾ùΪT£¬ÔòÎï¿éµÄ¼ÓËÙ¶Èa=                                     £»

£¨2£©ÈôÓù³ÂëmµÄÖØÁ¦±íʾС³µMËùÊܵĺÏÍâÁ¦£¬ÐèÂú×ã         £¬Âú×ã´ËÌõ¼þ×öʵÑéʱ£¬µÃµ½Ò»ÏµÁмÓËÙ¶ÈaÓëºÏÍâÁ¦FµÄ¶ÔÓ¦Êý¾Ý£¬»­³öa-F¹ØϵͼÏó£¬ÈçͼËùʾ£¬ÓÉͼÏó¿ÉÖª£¬ÊµÑé²Ù×÷Öв»µ±Ö®´¦Îª          £»Ð¡³µµÄÖÊÁ¿Îª           kg;  
£¨3£©ÈôʵÑé²Ù×÷¹ý³ÌÕýÈ·£¬½«Ð¡³µºÍ¹³Âë×÷ΪÕûÌå½øÐÐÑо¿£¬Óù³ÂëµÄÖØÁ¦±íʾºÏÍâÁ¦£¬´Ëʱ£¨Ìî¡°ÓС±¡¢¡°ÎÞ¡±£©ÏµÍ³Îó²î¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨10·Ö£©Í¼£±ÊÇ̽¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿¹ØϵµÄʵÑéʾÒâͼ¡£

£¨1£©ÈçͼΪľ¿éÔÚˮƽľ°åÉÏ´ø¶¯Ö½´øÔ˶¯´ò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£¬0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6Ϊ¼ÆÊýµã£¬ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµãδ»­³ö£®´ÓÖ½´øÉϲâ³ös1£½3.20 cm£¬s2£½4.52 cm£¬s5£½8.42 cm£¬s6£½9.70 cm.

Ôò¢Ùľ¿é¼ÓËٶȴóСa£½___  m/s2£¬¢Ú ´òÏÂ3µãʱµÄËÙ¶ÈΪ    ¡£(±£ÁôÈýλÓÐЧÊý×Ö)£®
£¨2£©¸ù¾Ýij´ÎʵÑé¼Ç¼µÄÊý¾Ý£¬×÷³öa¡ªFͼÏßÈçͼ£²Ëùʾ£¬Í¼Ïß²»¾­¹ýÔ­µãµÄÔ­ÒòÊÇ    £»a-FͼÏß²»ÊÇÒ»ÌõÖ±ÏßÖ÷ÒªµÄÔ­Òò£¬ÊÇ         ¡£
£¨3£©¼¸Î»Í¬Ñ§·ÖÎöËùµÃµ½µÄa-FͼÏß²»ÊÇÒ»ÌõÖ±ÏßµÄÔ­Òòºó£¬ÖØÐÂÉè¼ÆÁËÒ»¸öʵÑéÈçͼ3Ëùʾ£¬»¬¿éM·ÅÔÚÆøµæµ¼¹ìÉÏ£¬²¢ÔÚ»¬¿éÉϹ̶¨Ò»¸öËٶȴ«¸ÐÆ÷£¬Á¦´«¸ÐÆ÷¹Ì¶¨ÔÚÁíһˮƽ̨×ÓÉÏ£¬·Ö±ðÓëÁ½Ì¨µçÄÔÏàÁ¬£¬Æøµæµ¼¹ìÁ¬ÉÏÆø±Ã²¢µ÷³Éˮƽ¡£¶à´Î¸Ä±ä¹³ÂëmµÄÖÊÁ¿£¬ÓÉËٶȺÍÁ¦´«¸ÐÆ÷¿ÉÒԵõ½¶à×鲻ͬµÄ¼ÓËÙ¶Èa¡¢Á¦FµÄÖµ¡£ÔòÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ £º(    )    

A£®ÓÉÓÚ¿ÕÆø×èÁ¦¼°Éþ×ÓÓ뻬ÂÖ¼äµÄĦ²ÁºÜС£¬¿ÉÒԵóöa¡ØFµÄ½áÂÛ£¬Í¼ÏßÊÇÇãбµÄÖ±Ïß 
B£®Á¦´«¸ÐÆ÷²âµÃµÄÁ¦F=mg/2£¬ÔÚʵÑéʱӦȷ±£¹³ÂëµÄÖÊÁ¿mԶСÓÚ»¬¿éµÄÖÊÁ¿M 
C£®³ý¿ÕÆø×èÁ¦¼°Éþ×ÓÓ뻬ÂÖ¼äµÄĦ²ÁÁ¦Ö®Í⣬¶¯»¬ÂÖCµÄÖÊÁ¿ÊÇʵÑé×î´óµÄÎó²îÀ´Ô´ 
D£®ÊµÑéÖвâ³ö¼ÓËÙ¶ÈaµÄÖµ²»¿ÉÄÜ´óÓÚÖØÁ¦¼ÓËÙ¶Èg¡£ 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

ijͬѧÀûÓÃÈçͼ¼×ËùʾµÄ×°ÖòâÁ¿Ä³Ò»µ¯»ÉµÄ¾¢¶ÈϵÊý£¬½«¸Ãµ¯»ÉÊúÖ±Ðü¹ÒÆðÀ´£¬ÔÚ×ÔÓɶ˹ÒÉÏíÀÂëÅÌ¡£Í¨¹ý¸Ä±äÅÌÖÐíÀÂëµÄÖÊÁ¿£¬²âµÃ6×éíÀÂëµÄÖÊÁ¿ºÍ¶ÔÓ¦µÄµ¯»É³¤¶È£¬»­³ö-ͼÏߣ¬¶ÔÓ¦µãÒÑÔÚͼÉϱê³ö£¬ÈçͼÒÒËùʾ¡£(ÖØÁ¦¼ÓËÙ¶È)

¢Ù²ÉÓÃÇ¡µ±µÄÊý¾Ý´¦Àí£¬¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýΪ       ¡£(±£Áô3λÓÐЧÊý×Ö)
¢ÚÇëÄãÅжϸÃͬѧµÃµ½µÄʵÑé½á¹ûÓ뿼ÂÇíÀÂëÅ̵ÄÖÊÁ¿Ïà±È£¬½á¹û           ¡£(Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±»ò¡°Ïàͬ¡±)

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨1£©½«ÏÂÁÐÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑé²½Öè°´Õýȷ˳ÐòÅÅÁÐÆðÀ´
A£®Ñ¡È¡Ò»ÌõÖ½´ø£¬ÔÚÕâÌõÖ½´øÉÏÑ¡¶¨¼ÆÊýµã£®
B£®½«Ìú¼Ų̈·ÅÔÚʵÑé×ÀÉÏ£¬Óø½¼Ð°Ñ´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚÌú¼Ų̈ÉÏ£®
C£®»»ÐÂÖ½´øÖظ´ÊµÑ飮
D£®Á¿³ö´ÓÊ׵㵽¸÷¼ÆÊýµã¼äµÄ¾àÀ룬²¢Ëã³ö¸÷¼ÆÊýµãµÄ¼´Ê±Ëٶȣ®
E£®±È½Ï¡÷EKºÍ¡÷EPÔÚÎó²îÔÊÐí·¶Î§ÄÚÊÇ·ñ½üËÆÏàµÈ£®
F£®ÔÚÖØ´¸ÉϼгÖÒ»Ö½´ø£¬²¢½«Ëü´Ó´òµã¼ÆʱÆ÷µÄ¸´Ð´Ö½ÏÂÃæ´©¹ýÏÞλ¿×£¬ÊÖ³ÖÖ½´ø±£³ÖÊúÖ±·½Ïò£¬½ÓͨµçÔ´ºó£¬ËÉÊÖÈÃÖØ´¸Ç£ÒýÖ½´øÏÂÂ䣬µÃµ½´òµãµÄÖ½´ø£®
G£®¼ÆËã¸÷¼ÆÊýµãµÄ¶¯ÄÜÔö¼ÓÁ¿¡÷EKºÍÊÆÄܼõСÁ¿¡÷EP
Õýȷ˳Ðò                   
£¨2£©ÔÚÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬ÒÑÖª´òµã¼ÆʱÆ÷ËùÓõçÔ´µÄƵÂÊΪ50Hz£¬²éµÃµ±µØµÄÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£¬²âµÃËùÓõÄÖØÎïµÄÖÊÁ¿Îª1.00kg£®ÊµÑéÖеõ½Ò»Ìõµã¼£ÇåÎúµÄÖ½´øÈçͼËùʾ£¬°ÑµÚÒ»¸öµã¼Ç×÷O£¬ÁíÑ¡Á¬ÐøµÄ4¸öµãA¡¢B¡¢C¡¢D×÷Ϊ²âÁ¿µÄµã£®¾­²âÁ¿ÖªµÀA¡¢B¡¢C¡¢D¸÷µãµ½OµãµÄ¾àÀë·Ö±ðΪ62.99cm¡¢70.18cm¡¢77.76cm¡¢85.73cm£®¸ù¾ÝÒÔÉÏÊý¾Ý£¬¿ÉÖªÖØÎïÓÉOµãÔ˶¯µ½Cµã£¬ÖØÁ¦ÊÆÄܵļõÉÙÁ¿µÈÓÚ____J£¬¶¯ÄܵÄÔö¼ÓÁ¿µÈÓÚ____  J£¨È¡3λÓÐЧÊý×Ö£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

£¨10·Ö£©ÔÚÓÃDISÑо¿Ð¡³µ¼ÓËÙ¶ÈÓëÍâÁ¦µÄ¹Øϵʱ£¬Ä³ÊµÑéС×éÏÈÓÃÈçͼ£¨a£©ËùʾµÄʵÑé×°Öã¬ÖØÎïͨ¹ý»¬ÂÖÓÃϸÏßÀ­Ð¡³µ£¬Î»ÒÆ´«¸ÐÆ÷£¨·¢ÉäÆ÷£©ËæС³µÒ»ÆðÑØÇãб¹ìµÀÔ˶¯£¬Î»ÒÆ´«¸ÐÆ÷£¨½ÓÊÕÆ÷£©¹Ì¶¨ÔÚ¹ìµÀÒ»¶Ë£®ÊµÑéÖаÑÖØÎïµÄÖØÁ¦×÷ΪÀ­Á¦F£¬¸Ä±äÖØÎïÖØÁ¦Öظ´ÊµÑéËĴΣ¬Áбí¼Ç¼ËÄ×éÊý¾Ý£º

£¨1£©ÔÚ×ø±êÖ½ÉÏ×÷³öС³µ¼ÓËÙ¶ÈaºÍÀ­Á¦FµÄ¹ØϵͼÏߣ»
£¨2£©´ÓËùµÃͼÏß·ÖÎö¸ÃʵÑéС×éÔÚ²Ù×÷¹ý³ÌÖеIJ»µ±Ö®´¦
ÊÇ£º______________________£»
£¨3£©Èç¹ûʵÑéʱ£¬ÔÚС³µºÍÖØÎïÖ®¼ä½ÓÒ»¸ö²»¼ÆÖÊÁ¿µÄ΢ÐÍÁ¦´«¸ÐÆ÷ÓÃÀ´²âÁ¿À­Á¦F£¬Èçͼ(b)Ëùʾ£®´ÓÀíÂÛÉÏ·ÖÎö£¬¸ÃʵÑéͼÏßµÄбÂʽ«______________¡££¨Ìî¡°±ä´ó¡±£¬¡°±äС¡±£¬¡°²»±ä¡±£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

ijͬѧÔÚ×ö̽¾¿µ¯Á¦ºÍµ¯»ÉÉ쳤µÄ¹ØϵµÄʵÑéÖУ¬Éè¼ÆÁËͼ1ËùʾµÄʵÑé×°Öã®ËûÏȲâ³ö²»¹Ò¹³Âëʱµ¯»ÉµÄ×ÔÈ»³¤¶È£¬ÔÙ½«¹³ÂëÖð¸ö¹ÒÔÚµ¯»ÉµÄ϶ˣ¬Ã¿´Î¶¼²â³öÏàÓ¦µÄµ¯»É×ܳ¤¶È£¬½«Êý¾ÝÌîÔÚÏÂÃæµÄ±íÖУ®(µ¯»ÉʼÖÕÔÚµ¯ÐÔÏÞ¶ÈÄÚ)

²âÁ¿´ÎÐò
1
2
3
4
5
6
µ¯»Éµ¯Á¦´óСF/N
0
0.49
0.98
1.47
1.96
2.45
µ¯»É×ܳ¤x/cm
6
7.16
8.34
9.48
10.85
11.75

¸ù¾ÝʵÑéÊý¾ÝÔÚͼ2µÄ×ø±êÖ½ÉÏÒÑÃè³öÁ˲âÁ¿µÄµ¯»ÉËùÊܵ¯Á¦´óСF¸úµ¯»É×ܳ¤xÖ®¼äµÄº¯Êý¹Øϵµã£¬²¢×÷³öÁËF£­xͼÏߣ®
(1)ͼÏ߸úx×ø±êÖá½»µãµÄÎïÀíÒâÒåÊÇ___________________________£®
(2)¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýk£½________.(½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö)

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

ÓÐÒ»¸öСµÆÅÝÉϱêÓС°4 V£¬2 W¡±µÄ×ÖÑù£¬ÏÖÔÚÒªÓ÷ü°²·¨Ãè»æÕâ¸öµÆÅݵÄU-IͼÏߣ¬ÓÐÏÂÁÐÆ÷²Ä¹©Ñ¡Óãº
Aµçѹ±í£¨0¡«5 V£¬ÄÚ×è10 k¦¸£©     Bµçѹ±í£¨0¡«10 V£¬ÄÚ×è20 k¦¸£©
CµçÁ÷±í£¨0¡«0.3 A£¬ÄÚ×è1 ¦¸£©      DµçÁ÷±í£¨0¡«0.6 A£¬ÄÚ×è0.4 ¦¸£©
E»¬¶¯±ä×èÆ÷£¨5 ¦¸£¬1 A£©           F»¬¶¯±ä×èÆ÷£¨500 ¦¸£¬0.2 A£©
¢ÙʵÑéÖеçѹ±íӦѡÓÃ______£¬µçÁ÷±íӦѡÓÃ______.ΪʹʵÑéÎó²î¾¡Á¿¼õС£¬ÒªÇóµçѹ±í´ÓÁ㿪ʼ±ä»¯ÇÒ¶àÈ¡¼¸×éÊý¾Ý£¬»¬¶¯±ä×èÆ÷ӦѡÓÃ__________£¨ÓÃÐòºÅ×Öĸ±íʾ£©¡£
¢ÚÇëÔÚ·½¿òÄÚ»­³öÂú×ãʵÑéÒªÇóµÄµç·ͼ£¬²¢°ÑͼÖÐËùʾµÄʵÑéÆ÷²ÄÓÃʵÏßÁ¬½Ó³ÉÏàÓ¦µÄʵÎïµç·ͼ¡£

¢Û¸ù¾ÝU-IͼÏ󣬵±µÆÅÝÁ½¶ËËù¼ÓµçѹΪ3.2Vʱ£¬µç¹¦ÂÊΪ    W

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸