ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåËùÊܺÏÍâÁ¦ºÍÖÊÁ¿¼äµÄ¹Øϵ¡±Ê±£¬²ÉÓÃÈçͼ1ËùʾµÄʵÑé×°Öã¬Ð¡³µ¼°³µÖÐíÀÂëµÄÖÊÁ¿ÓÃM±íʾ£¬Å̼°ÅÌÖÐíÀÂëµÄÖÊÁ¿ÓÃm±íʾ£¬Ð¡³µµÄ¼ÓËٶȿÉÓÉС³µºóÍ϶¯µÄÖ½´øÓÉ´òµã¼ÆÊýÆ÷´òÉϵĵã¼ÆËã³ö£®¾«Ó¢¼Ò½ÌÍø
£¨1£©µ±MÓëmµÄ´óС¹ØϵÂú×ã
 
ʱ£¬²Å¿ÉÒÔÈÏΪÉþ×Ó¶ÔС³µµÄÀ­Á¦´óСµÈÓÚÅ̺ÍíÀÂëµÄÖØÁ¦£®
£¨2£©Ò»×éͬѧÔÚÏȱ£³ÖÅ̼°ÅÌÖÐíÀÂëµÄÖÊÁ¿Ò»¶¨£¬Ì½¾¿¼ÓËÙ¶ÈÓëÖÊÁ¿µÄ¹Øϵ£¬ÒÔÏÂ×ö·¨´íÎóµÄÊÇ
 
£®
A£®Æ½ºâĦ²ÁÁ¦Ê±£¬²»Ó¦½«Å̼°ÅÌÖеÄíÀÂëÓÃϸÉþͨ¹ý¶¨»¬ÂÖϵÔÚС³µÉÏ
B£®Ã¿´Î¸Ä±äС³µµÄÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
C£®ÊµÑéʱ£¬ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D£®Ð¡³µÔ˶¯µÄ¼ÓËٶȿÉÓÃÌìƽ²â³ömÒÔ¼°Ð¡³µµÄÖÊÁ¿M£¬Ö±½ÓÓù«Ê½a=
mgM
Çó³ö£®
£¨3£©ÔÚ±£³ÖС³µ¼°³µÖÐíÀÂëµÄÖÊÁ¿MÒ»¶¨£¬Ì½¾¿¼ÓËÙ¶ÈÓëËùÊܺÏÍâÁ¦µÄ¹Øϵʱ£¬ÓÉÓÚƽºâĦ²ÁÁ¦Ê±²Ù×÷²»µ±£¬Ä³Í¬Ñ§µÃµ½µÄa-F¹ØϵÈçͼ2Ëùʾ£¨aÊÇС³µµÄ¼ÓËٶȣ¬FÊÇϸÏß×÷ÓÃÓÚС³µµÄÀ­Á¦£©£®ÆäÔ­Òò
 
£®
·ÖÎö£ºµ±Å̼°ÅÌÖÐíÀÂëµÄ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µ¼°íÀÂë×ÜÖÊÁ¿Ê±£¬¿ÉÒÔÈÏΪС³µÊܵ½µÄÀ­Á¦µÈÓÚÅ̼°íÀÂëµÄÖØÁ¦£®
ƽºâĦ²ÁÁ¦Ê±£¬²»ÄܹÒÅÌ£»ÊµÑé¹ý³ÌÖУ¬Ó¦±£Ö¤ÉþºÍÖ½´øÓëľ°åƽÐУ»Ð¡³µµÄ¼ÓËÙ¶ÈÓ¦ÓÉÖ½´øÇó³ö£®
½â´ð£º½â£º£¨1£©Ñé֤ţ¶ÙµÚ¶þ¶¨ÂɵÄʵÑéÖУ¬Òª±£Ö¤m¡¶M£¬²ÅÄܱ£Ö¤Éþ×ÓµÄÀ­Á¦Ô¼µÈÓÚmµÄÖØÁ¦
£¨2£©A¡¢Æ½ºâĦ²ÁÁ¦Ê±£¬Ó¦½«Éþ´ÓС³µÉÏÄÃÈ¥£¬ÇáÇáÍƶ¯Ð¡³µ£¬ÊÇС³µÑØľ°åÔ˶¯£¬Í¨¹ý´òµã¼ÆʱÆ÷´ò³öÀ´µÄÖ½´øÅжÏС³µÊÇ·ñÔÈËÙÔ˶¯£®¹ÊAÕýÈ·£®
B¡¢Ã¿´Î¸Ä±äС³µµÄÖÊÁ¿Ê±£¬Ð¡³µµÄÖØÁ¦ÑØбÃæ·ÖÁ¦ºÍĦ²ÁÁ¦ÈÔÄܵÖÏû£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦£®¹ÊBÕýÈ·£®
C¡¢ÊµÑéʱ£¬Ó¦ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µçÔ´£¬ÓÉÓÚС³µÔ˶¯½Ï¿ì£¬¿ÉÄÜ»áʹ´ò³öÀ´µÄµãºÜÉÙ£¬²»ÀûÓÚÊý¾ÝµÄ²É¼¯ºÍ´¦Àí£®¹ÊC´íÎó£®
D¡¢Ð¡³µÔ˶¯µÄ¼ÓËÙ¶ÈÊÇÀûÓôòµã¼ÆʱÆ÷²âÁ¿£¬Èç¹ûÓÃÌìƽ²â³ömÒÔ¼°Ð¡³µÖÊÁ¿M£¬Ö±½ÓÓù«Ê½a=
mg
M
Çó³ö£¬ÕâÊÇÔÚÖ±½ÓÔËÓÃÅ£¶ÙµÚ¶þ¶¨ÂɼÆËãµÄ£¬¶øÎÒÃÇʵÑéÊÇÔÚ̽¾¿¼ÓËÙ¶ÈÓëÎïÌåËùÊܺÏÍâÁ¦ºÍÖÊÁ¿¼äµÄ¹Øϵ£®¹ÊD´íÎó£®
±¾ÌâÑ¡´íÎóµÄ£¬¹ÊÑ¡CD
£¨3£©µ±F=0ʱ£¬a¡Ù0£®Ò²¾ÍÊÇ˵µ±Éþ×ÓÉÏûÓÐÀ­Á¦Ê±Ð¡³µ¾ÍÓмÓËٶȣ¬¸ÃͬѧʵÑé²Ù×÷ÖÐƽºâĦ²ÁÁ¦¹ý´ó£¬¼´Æ½ºâĦ²ÁÁ¦Ê±£¬³¤Ä¾°åµÄÇã½Ç¹ý´óÁË
¹Ê´ð°¸Îª£º£¨1£©m¡¶M¡¡   £¨2£©CD¡¡  £¨3£©Æ½ºâĦ²ÁÁ¦Ê±£¬³¤Ä¾°åµÄÇã½Ç¹ý´óÁË
µãÆÀ£º½Ì¿ÆÊé±¾ÉϵÄʵÑ飬ÎÒÃÇÒª´ÓʵÑéÔ­Àí¡¢ÊµÑéÒÇÆ÷¡¢ÊµÑé²½Ö衢ʵÑéÊý¾Ý´¦Àí¡¢ÊµÑé×¢ÒâÊÂÏîÕ⼸µãÈ¥¸ãÇå³þ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÊÜÁ¦µÄ¹Øϵ¡±»î¶¯ÖУ¬Ä³Ð¡×éÉè¼ÆÁËÈçͼËùʾµÄʵÑ飮ͼÖÐÉÏÏÂÁ½²ãˮƽ¹ìµÀ±íÃæ¹â»¬£¬Á½ÍêÈ«ÏàͬµÄС³µÇ°¶ËϵÉÏϸÏߣ¬Ï¸Ïß¿ç¹ý»¬ÂÖ²¢·Ö±ð¹ÒÉÏ×°Óв»Í¬ÖÊÁ¿íÀÂëµÄÅÌ£¬Á½Ð¡³µÎ²²¿Ï¸ÏßˮƽÁ¬µ½¿ØÖÆ×°ÖÃÉÏ£¬ÊµÑéʱͨ¹ý¿ØÖÆϸÏßʹÁ½Ð¡³µÍ¬Ê±¿ªÊ¼Ô˶¯£¬È»ºóͬʱֹͣ£®ÊµÑéÖУº
£¨1£©Ó¦Ê¹íÀÂëºÍÅ̵Ä×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µµÄÖÊÁ¿£¬Õâʱ¿ÉÈÏΪС³µÊܵ½µÄºÏÁ¦µÄ´óСµÈÓÚ
íÀÂëºÍÅ̵Ä×ÜÖØÁ¦
íÀÂëºÍÅ̵Ä×ÜÖØÁ¦
£®
£¨2£©Èô²âµÃС³µ1¡¢2µÄλÒÆ·Ö±ðΪx1ºÍx2£¬ÔòС³µ1¡¢2µÄ¼ÓËÙ¶ÈÖ®±È
a1
a2
=
x1
x2
x1
x2
£®
£¨3£©Òª´ïµ½ÊµÑéÄ¿µÄ£¬»¹Ðè²âÁ¿µÄÎïÀíÁ¿ÊÇ
Á½×éíÀÂëºÍÅ̵Ä×ÜÖØÁ¿£¨ÖÊÁ¿£©
Á½×éíÀÂëºÍÅ̵Ä×ÜÖØÁ¿£¨ÖÊÁ¿£©
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿¡¢ÎïÌåÊÜÁ¦µÄ¹Øϵ¡±»î¶¯ÖУº
ijͬѧÉè¼ÆÁËÈçͼaµÄʵÑé×°Öüòͼ£¬AΪС³µ£¬BΪµç»ð»¨¼ÆʱÆ÷£¬CΪɰͰ£¬DΪһ¶Ë´øÓж¨»¬Âֵij¤·½ÐÎľ°å£¬ÊµÑéÖÐÈÏΪϸÉþ¶ÔС³µÀ­Á¦FµÈÓÚÉ°Í°ºÍÉ°µÄ×ÜÖØÁ¿£¬

£¨1£©Í¼bÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£º0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6¡¢7ÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ£®¸ù¾ÝͼÖÐÊý¾ÝÍê³É±í¸ñÖпհ״¦

¼ÆÊýµã 1 2 3 4 5 6
˲ʱËÙ¶È/£¨m/s£© 0.165 0.215
0.264
0.264
0.314 0.364 0.413
£¨2£©ÓÉ£¨1£©ÖеÄÊý¾ÝÔÚͼcÖÐ×÷³öËÙ¶È-ʱ¼äͼÏó²¢ÓÉͼÏóÇó³öС³µµÄ¼ÓËÙ¶È
a=
0.496
0.496
 m/s2  £¨±£Áô3λÓÐЧÊý×Ö£©

£¨3£©ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵ¡±Ê±£¬±£³ÖС³µµÄÖÊÁ¿²»±ä£¬¸Ä±äÉ°ºÍÉ°Í°µÄÖÊÁ¿£¬¸Ãͬѧ¸ù¾ÝʵÑéÊý¾Ý×÷³öÁ˼ÓËÙ¶ÈaÓëºÏÁ¦FµÄͼÏßÈçͼd£¬Ôò
¢ÙͼÖеÄÖ±Ïß²»¹ýÔ­µãµÄÔ­ÒòÊÇ
ƽºâĦ²ÁÁ¦¹ý´ó
ƽºâĦ²ÁÁ¦¹ý´ó
£®
¢ÚͼÖеÄÁ¦FÀíÂÛÉÏÖ¸
B
B
£¬¶øʵÑéÖÐÈ´ÓÃ
A
A
±íʾ£®£¨Ñ¡Ìî×Öĸ·ûºÅ£©
A£®É°ºÍÉ°Í°µÄÖØÁ¦      B£®Éþ¶ÔС³µµÄÀ­Á¦
¢Û´ËͼÖÐÖ±Ïß·¢ÉúÍäÇúµÄÔ­ÒòÊÇ
É°ºÍÉ°Í°µÄÖÊÁ¿Ã»ÓÐԶСÓÚ³µµÄÖÊÁ¿£®
É°ºÍÉ°Í°µÄÖÊÁ¿Ã»ÓÐԶСÓÚ³µµÄÖÊÁ¿£®
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼΪijͬѧÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåËùÊܺÏÁ¦¼°ÖÊÁ¿µÄ¹Øϵ¡±ÊµÑéÖÐÓôòµã¼ÆʱÆ÷´ò³öµÄÒ»ÌõÖ½´ø£®ÒÑÖª´òµã¼ÆʱÆ÷µÄƵÂÊΪ50Hz£¬Ö½´øÉÏÿ5¸öµãÈ¡Ò»¸ö¼ÆÊýµã£®Í¼Öл­³öÁ˼¸¸ö¼ÆÊýµã£¬»¹±ê³öÁËһЩ¼ÆÊýµã¼äµÄ¾àÀ룬ÔòÓÉ´Ë¿ÉËã³öС³µµÄ¼ÓËÙ¶ÈΪ
 
m/s2£¬´òBµãʱֽ´øµÄËÙ¶ÈΪ
 
m/s£®
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿¡¢ÎïÌåÊÜÁ¦µÄ¹Øϵ¡±ÊµÑéÖУ¬Ä³Ð¡×éÉè¼ÆÁËÈçͼËùʾµÄʵÑé×°Öã®Í¼ÖÐÉÏ¡¢ÏÂÁ½²ãˮƽ¹ìµÀ±íÃæ¹â»¬£¬Á½Ð¡³µÇ°¶ËϵÉÏϸÏߣ¬Ï¸Ïß¿ç¹ý¶¨»¬ÂÖ²¢¹ÒÉÏíÀÂëÅÌ£¬Á½Ð¡³µÎ²²¿Ï¸ÏßÁ¬µ½¿ØÖÆ×°ÖÃÉÏ£¬ÊµÑéʱͨ¹ý¿ØÖÆ×°ÖÃʹС³µÍ¬Ê±¿ªÊ¼Ô˶¯£¬È»ºóͬʱֹͣ£®
£¨1£©ÔÚ°²×°ÊµÑé×°ÖÃʱ£¬Ó¦µ÷Õû»¬Âֵĸ߶ȣ¬Ê¹Ð¡³µÓ뻬ÂÖÖ®¼äµÄϸÏßˮƽ£»ÔÚʵÑéʱ£¬Îª¼õСϵͳÎó²î£¬Ó¦Ê¹íÀÂëÅ̺ÍíÀÂëµÄ×ÜÖÊÁ¿
 
С³µµÄÖÊÁ¿£¨Ñ¡Ìî¡°Ô¶´óÓÚ¡±¡¢¡°Ô¶Ð¡ÓÚ¡±¡¢¡°µÈÓÚ¡±£©£®
£¨2£©±¾ÊµÑéͨ¹ý±È½ÏÁ½Ð¡³µµÄλÒÆÀ´±È½ÏС³µ¼ÓËٶȵĴóС£¬ÄÜÕâÑù±È½Ï£¬ÊÇÒòΪ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

I£®£¨1£©Ò»ÌõÖ½´øÓë×öÔȼÓËÙÖ±ÏßÔ˶¯µÄС³µÏàÁ¬£¬Í¨¹ý´òµã¼ÆʱÆ÷´òÏÂһϵÁе㣬´Ó´òϵĵãÖÐÑ¡È¡Èô¸É¼ÆÊýµã£¬Èçͼ1ÖÐA¡¢B¡¢G¡¢D¡¢²ãËùʾ£¬Ö½´øÉÏÏàÁÚµÄÁ½¸ö¼ÆÊýµãÖ®¼äÓÐËĸöµãδ»­³ö£®ÏÖ²â³öAB=2.20cm£¬AC=6.40cm£¬AD=12.58cm£¬AE=20.80cm£¬ÒÑÖª´òµã¼ÆʱÆ÷µçԴƵÂÊΪ50Hz£¬Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ù´òDµãʱ£¬Ð¡³µµÄËٶȴóСΪ
0.72
0.72
m/s£»
¢ÚС³µÔ˶¯µÄ¼ÓËٶȴóСΪ
2.0
2.0
m/s2£®£¨¢Ù¢Ú¾ù±£ÁôÁ½ÐÜÓÐЧÊý×Ö£©

£¨2£©ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿¡¢ÎïÌåÊÜÁ¦µÄ¹Øϵ¡±»î¶¯ÖУ¬Ä³Ð¡×éÉè¼ÆÁËÈçͼ2ËùʾµÄʵÑé×°Öã¬Í¼ÖÐÉÏÏÂÁ½²ãˮƽ¹ìµÀ±íÃæ¹â»¬£¬Á½Ð¡³µÇ°¶ËϵÉÏϸÏߣ¬Ï¸Ïß¿ç¹ý»¬ÂÖ²¢¹ÒÉÏíÀÂëÅÌ£¬Á½Ð¡³µÎ²²¿Ï¸ÏßÁ¬µ½¿ØÖÆ×°ÖÃÉÏ£¬ÊµÑéʱͨ¹ý¿ØÖÆ×°ÖÃʹÁ½Ð¡³µÍ¬Ê±¿ªÊ¼Ô˶¯£¬È»ºóͬʱֹͣ£¬±¾Ì½¾¿ÊµÑéÊÇͨ¹ý±È½ÏÁ½Ð¡³µµÄλÒÆ´óСÀ´±È½ÏС³µ¼ÓËٶȵĴóС£®ÄܽøÐÐÕâÑùµÄ±È½Ï£®ÊÇÒòΪ£¿
С³µ×ö³õËÙ¶ÈΪÁãµÄÔȼÓËÙÔ˶¯£¬Ô˶¯Ê±¼äÏà¶Ô£¬¼ÓËÙ¶ÈÓëλÒƳÉÕý±È
С³µ×ö³õËÙ¶ÈΪÁãµÄÔȼÓËÙÔ˶¯£¬Ô˶¯Ê±¼äÏà¶Ô£¬¼ÓËÙ¶ÈÓëλÒƳÉÕý±È
£®
II£®ÓÐÒ»¶Î´Öϸ¾ùÔȵĵ¼Ì壬ÏÖÒªÓÃʵÑéµÄ·½·¨²â¶¨ÕâÖÖµ¼Ìå²ÄÁϵĵç×èÂÊ£¬ÈôÒѲâµÃÆ䳤¶ÈºÍºá½ØÃæ»ý£¬»¹ÐèÒª²â³öËüµÄµç×èÖµRx£®
£¨1£©ÈôÒÑÖªÕâ¶Îµ¼ÌåµÄµç×èԼΪ30¦¸£¬Òª¾¡Á¿¾«È·µÄ²âÁ¿Æäµç×èÖµ£¬³ýÁËÐèÒªµ¼Ïß¡¢¿ª¹ØÒÔÍ⣬ÔÚÒÔϱ¸Ñ¡Æ÷²ÄÖÐӦѡÓõÄÊÇ
ABEF
ABEF
£®£¨Ö»Ìîд×Öĸ´úºÅ£©
A£®µç³Ø£¨µç¶¯ÊÆ14V¡¢ÄÚ×è¿ÉºöÂÔ²»¼Æ£©
B£®µçÁ÷±í£¨Á¿³Ì0¡«0.6A£¬ÄÚ×èÔ¼0.12¦¸£©
C£®µçÁ÷±í£¨Á¿³Ì0¡«100m A£¬ÄÚ×èÔ¼12¦¸£©
D£®µçѹ±í£¨Á¿³Ì0¡«3V£¬ÄÚ×èÔ¼3k¦¸£©
E£®µçѹ±í£¨Á¿³Ì0¡«15V£¬ÄÚ×èÔ¼15k¦¸£©
F£®»¬¶¯±ä×èÆ÷£¨0¡«10¦¸£¬ÔÊÐí×î´óµçÁ÷2.0A£©
G£®»¬¶¯±ä×èÆ÷£¨0¡«500¦¸£¬ÔÊÐí×î´óµçÁ÷0.5A£©
£¨2£©ÇëÔÚ´ðÌ⿨·½¿òÖл­³ö²âÕâ¶Îµ¼Ìåµç×èµÄʵÑéµç·ͼ£¨ÒªÇóÖ±½Ó²âÁ¿µÄ±ä»¯·¶Î§¾¡¿ÉÄÜ´óһЩ£©£®
£¨3£©¸ù¾Ý²âÁ¿Êý¾Ý»­³ö¸Ãµ¼ÌåµÄ·ü°²ÌØÐÔÇúÏßÈçͼ3Ëùʾ£¬·¢ÏÖMN¶ÎÃ÷ÏÔÏòÉÏÍäÇú£®ÈôʵÑéµÄ²Ù×÷¡¢¶ÁÊý¡¢¼Ç¼¡¢ÃèµãºÍ»æͼµÈ¹ý³Ì¾ùÕýÈ·ÎÞÎó£¬Ôò³öÏÖÕâÒ»ÍäÇúÏÖÏóµÄÖ÷ÒªÔ­ÒòÊÇ
°éËæµ¼ÌåÖеĵçÁ÷Ôö´ó£¬Î¶ÈÉý¸ß£¬µç×èÂÊÔö´ó£¬µç×èÔö´ó
°éËæµ¼ÌåÖеĵçÁ÷Ôö´ó£¬Î¶ÈÉý¸ß£¬µç×èÂÊÔö´ó£¬µç×èÔö´ó
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸