ijʵÑéС×éͨ¹ýÑо¿·¢ÏÖ£¬²ÉÓÃÈçͼËùʾװÖÿÉÒԵõ½Ð¡³µºÍСÅ̵ÄÖÊÁ¿£¬²½ÖèÈçÏ£º
£¨1£©È¡Ò»ºÐ×ÜÖÊÁ¿Îªm0=0.2kgµÄíÀÂë·ÅÖÃÔÚС³µÉÏ£¬²»¹ÒСÅÌ£¬µ÷½Úбľ°åµÄÇã½Ç£¬Ê¹Ð¡³µÄÜÔÈËÙ»¬Ï£»
£¨2£©¹ÒÉÏСÅÌ£¬Ê¹Ð¡³µÎÞ³õËÙ»¬Ï£¬Óôòµã¼ÆʱÆ÷´ò³öÖ½´ø£¬²¢¸ù¾ÝÖ½´ø¼ÆËã¼ÓËٶȣ»
£¨3£©´ÓС³µÉÏÈ¡ÖÊÁ¿ÎªmxµÄíÀÂë·Åµ½Ð¡ÅÌÖУ¬Öظ´²½Ö裨2£©£¬²â³ö¶ÔÓ¦µÄ¼ÓËٶȣ»
£¨4£©¸Ä±ämxµÄ´óС£¬Öظ´²½Ö裨3£©£¬µÃµ½mx¼°aµÄÊý¾Ý£¬×÷³öa-mxµÄͼÏߣ»
²½Ö裨1£©Öе÷½Úľ°åµÄÇã½ÇʹС³µÄÜÔÈËÙÏ»¬µÄÄ¿µÄÊÇ______£®
ͨ¹ýʵÑéÅжÏС³µ×öÔÈËÙÔ˶¯µÄÒÀ¾ÝÊÇ______£®
¸ÃʵÑéÖÐÊÇ·ñÓ¦¸ÃÂú×ãС³µºÍíÀÂëµÄÖÊÁ¿Ô¶´óÓÚСÅ̺ÍíÀÂëµÄÖÊÁ¿£¿______£¨Ñ¡Ìî¡°ÊÇ¡±»ò¡°·ñ¡±£©
ÈôÇóµÃͼÏßµÄбÂÊk=25m/£¨kg?s2£©£¬½Ø¾àb=0.5m/s2£¬gÈ¡10m/s2£¬Ôò¿É֪СÅ̵ÄÖÊÁ¿m1=______kg£¬Ð¡³µµÄÖÊÁ¿m2=______kg£®
µ÷½Úľ°åÇã½ÇʹС³µÄÜÔÈËÙ»¬ÏµÄÄ¿µÄÊÇΪÁËƽºâС³µËùÊܵÄĦ²ÁÁ¦£®
Åж¨Ð¡³µ×÷ÔÈËÙÔ˶¯µÄÒÀ¾ÝÊÇÓôòµã¼ÆʱÆ÷´ò³öµÄÖ½´øÉϵĵ㼣·Ö²¼¾ùÔÈ£®
±¾ÊµÑé²»ÐèÒªÈÃÅ̺ÍíÀÂëµÄ×ÜÖØÁ¦µÈÓÚС³µÊܵ½µÄºÏÍâÁ¦£¬ËùÒÔ²»ÐèÒªÂú×ãС³µºÍíÀÂëµÄÖÊÁ¿Ô¶´óÓÚСÅ̺ÍíÀÂëµÄÖÊÁ¿£»
¹ÒÉÏСÅÌ£¬Ê¹Ð¡³µÎÞ³õËÙ¶ÈÏ»¬£¬Óôòµã¼ÆʱÆ÷´ò³öÖ½´ø£¬²¢¸ù¾ÝÖ½´ø¼ÆËã³ö¼ÓËٶȣ»
ÉèС³µÖÊÁ¿ÎªM³µ£¬Ð¡Í°µÄÖÊÁ¿ÎªmÅÌ£¬
¶ÔСͰ·ÖÎö£º£¨mÅÌ+mx£©g-FÀ­=£¨mÅÌ+mx£©a
¶ÔС³µ·ÖÎö£ºFÀ­=£¨M³µ+m0-mx£©a
½âµÃ£ºa=
(m1+mx)g
m1+m2+m0

¶ÔÓÚa-mxͼÏߣ¬
m1g
m1+m2+m0
Ϊ½Ø¾à£¬
g
m1+m2+m0
ΪбÂÊ£®
¶øͼÏßµÄбÂÊk=25m/£¨kg?s2£©£¬½Ø¾àb=0.5m/s2£¬
½âµÃ£ºm1=0.02kg£¬m2=0.18kg
¹Ê´ð°¸Îª£ºÆ½ºâĦ²ÁÁ¦£»´òµã¼ÆʱÆ÷´ò³öµÄÖ½´øµã¼£·Ö²¼¾ùÔÈ£»·ñ£»0.02£»0.18£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£º¶àÑ¡Ìâ

¹ØÓÚÅ£¶ÙÔ˶¯¶¨ÂÉ£¬ÏÂÁÐ˵·¨´íÎóµÄÊÇ£¨¡¡¡¡£©
A£®ÎïÌåÔÚ²»ÊÜÍâÁ¦×÷ÓÃʱ£¬±£³ÖÔ­ÓÐÔ˶¯×´Ì¬²»±äµÄÐÔÖʽйßÐÔ£¬¹ÊÅ£¶ÙÔ˶¯¶¨ÂÉÓֽйßÐÔ¶¨ÂÉ
B£®Å£¶ÙÔ˶¯¶¨ÂɽöÊÊÓÃÓÚºê¹ÛÎïÌ壬ֻ¿ÉÓÃÓÚ½â¾öÎïÌåµÄµÍËÙÔ˶¯ÎÊÌâ
C£®Å£¶ÙµÚÒ»¶¨ÂÉÊÇÅ£¶ÙµÚ¶þ¶¨ÂÉÔÚÎïÌå²»ÊÜÍâÁ¦»òËùÊܺÏÍâÁ¦ÎªÁã¡¢ÎïÌåµÄ¼ÓËÙ¶Èa=0Ìõ¼þϵÄÌØÀý
D£®×÷ÓÃÁ¦ºÍ·´×÷ÓÃÁ¦×ÜÊÇͬһÐÔÖʵÄÁ¦£¬ËüÃDzúÉúµÄ×÷ÓÃЧ¹ûÒ»¶¨Ïàͬ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

»ð³µÔÚƽֱ¹ìµÀÉÏÔÈËÙÐÐÊ»£¬³µÏáÄÚÓÐÒ»¸öÈËÏòÉÏÌøÆ𣬷¢ÏÖÈÓÂä»Ø³µÉÏÔ­´¦£¬ÕâÊÇÒòΪ£¨¡¡¡¡£©
A£®ÈËÌøÆðºó£¬³µÏáÄÚ¿ÕÆø¸øËûÒÔÏòÇ°µÄÁ¦£¬Ê¹ËûÓëͬ»ð³µÒ»ÆðÏòÇ°Ô˶¯
B£®ÈËÌøÆðµÄ˲¼ä£¬³µÏáµØ°å¸øËûÒ»¸öÏòÇ°µÄÁ¦£¬Ê¹ËûÓë»ð³µÒ»ÆðÏòÇ°Ô˶¯
C£®ÈËÌøÆðºó£¬³µÔÚ¼ÌÐøÏòÇ°Ô˶¯£¬ËùÒÔÈËÂäϺó±Ø¶¨Æ«ºóһЩ£¬Ö»ÊÇÓÉÓÚʱ¼äºÜ¶Ì£¬²»Ã÷ÏÔ¶øÒÑ
D£®ÈËÌøÆðºóÈÓÂäµ½»Ø³µÉÏÔ­´¦£¬ÕâÊÇÓÉÓÚÈ˵ĹßÐÔ£¬ÔÚˮƽ·½ÏòÉÏÓë³µ¾ßÓÐÏàͬµÄËÙ¶È

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄʵÑéÖУ¨1£©ÏÂÊö²Ù×÷²½ÖèµÄ°²ÅÅ˳Ðò²»¾¡ºÏÀí£¬Ç뽫ºÏÀíµÄ˳ÐòÒÔ×Öĸ´úºÅÌîдÔÚºáÏßÉÏ______
A£®±£³ÖСͰÀïɳ×ÓµÄÖÊÁ¿²»±ä£¬ÔÚС³µÀï¼ÓíÀÂ룬²â³ö¼ÓËٶȣ¬Öظ´¼¸´Î
B£®±£³ÖС³µÖÊÁ¿²»±ä£¬¸Ä±äСͰºÍɳ×ÓµÄÖÊÁ¿£¬²â³ö¼ÓËٶȣ¬Öظ´¼¸´Î
C£®ÓÃÌìƽ²â³öС³µºÍСͰ¼°É³×ÓµÄÖÊÁ¿
D£®Æ½ºâĦ²ÁÁ¦£¬Ê¹Ð¡³µ½üËÆ×öÔÈËÙÖ±ÏßÔ˶¯
E£®¹ÒÉÏɳͰ£¬½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¬·Å¿ªÐ¡³µ£¬ÔÚÖ½´øÉÏ´òÏÂһϵÁеĵã
F£®¸ù¾Ý²âÁ¿µÄÊý¾Ý£¬·Ö±ð»­³öa-FºÍa-1/mµÄͼÏß
£¨2£©±¾ÊÔÑéÖ½´øµÄ¼Ç¼ÈçͼËùʾ£¬´ÓAµãÆðÿ5¸öµãÈ¡Ò»¸ö¼ÆÊýµã£¬¼´Á½ÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪ0.1s£¬ÔòÎïÌåÔ˶¯µÄ¼ÓËÙ¶ÈΪ______m/s2£¨±£Áô3λÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ijʵÑéС×éÓÃÈçͼ1ËùʾÆ÷²Ä¡°Ì½¾¿aÓëF¡¢mÖ®¼äµÄ¹Øϵ¡±

£¨1£©¹ØÓÚ¸ÃʵÑéµÄÒªÇó£¬ÒÔÏÂ˵·¨ÕýÈ·µÄÓÐ______
A£®Ð¡³µµÄÖÊÁ¿ÒªÔ¶Ð¡ÓÚíÀÂëºÍÍÐÅ̵Ä×ÜÖÊÁ¿
B£®Òª²ÉÓÿØÖƱäÁ¿·¨Ì½¾¿aÓëF¡¢mÖ®¼äµÄ¹Øϵ
C£®Æ½ºâ×èÁ¦Ê±£¬×îºÃÏÈÈ¡ÏÂϸÉþ¡¢ÍÐÅ̺ÍÖ½´ø£¬Ôٸı䳤ľ°åÇãб³Ì¶È
D£®ÒªÏÈÊÍ·ÅС³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
£¨2£©Á¬½ÓϸÉþ¼°ÍÐÅÌ£¬·ÅÈëíÀÂ룬ͨ¹ýʵÑéµÃµ½Í¼2ËùʾµÄÖ½´ø£®Ö½´øÉÏOΪС³µÔ˶¯Æðʼʱ¿ÌËù´òµÄµã£¬Ñ¡È¡¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢G£®ÏàÁÚÁ½¼ÆÊýµãÖ®¼äÓÐËĸöµãδ»­³ö£®ÓÉÒÔÉÏÊý¾Ý¿ÉËã³ö´òCµãʱС³µËٶȴóСΪ______m/s£»´ò¸ÃÖ½´øµÄ¹ý³ÌÖÐС³µµÄ¼ÓËٶȴóСΪ______m/s2£¨ÒÔÉϼÆËã½á¹û¾ù±£ÁôÈýλÓÐЧÊý×Ö£©£®
£¨3£©Èç¹ûƽºâ×èÁ¦Ê±£¬ÒѾ­È¡ÏÂϸÉþºÍÍÐÅÌ£¬²¢ÇÒͨ¹ý¸Ä±ä³¤Ä¾°åÇãб³Ì¶È£¬´ïµ½ÁËÍêȫƽºâĦ²ÁÁ¦µÄÒªÇó£®ÊµÑéÇ°ÒѲâµÃС³µÖÊÁ¿Îª1kg£¬ÍÐÅ̵ÄÖÊÁ¿5¡Á10-3kg£¬ÔÚÉÏÊöʵÑé¹ý³ÌÖиÃ×éͬѧ·ÅÈëÍÐÅÌÖеÄíÀÂëÖÊÁ¿Ô¼Îª______kg£¨gÈ¡9.8m/s2£¬½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

ÔÚ×ö¡°Ì½¾¿¼ÓËٶȺÍÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄʵÑéÖУ¬±£³ÖС³µºÍíÀÂëµÄ×ÜÖÊÁ¿²»±ä£¬²âµÃС³µµÄ¼ÓËÙ¶ÈaºÍÀ­Á¦FµÄÊý¾ÝÈçϱíËùʾ
F£¨N£©0.200.300.400.500.60
a£¨m/s2£©0.110.190.290.400.51
£¨1£©¸ù¾ÝÖеÄÊý¾ÝÔÚ×ø±êͼÉÏ×÷³öa-FͼÏó£»
£¨2£©Í¼ÏóбÂʵÄÎïÀíÒâÒåÊÇ______£»
£¨3£©Ð¡³µºÍíÀÂëµÄ×ÜÖÊÁ¿Îª______kg£»
£¨4£©Í¼Ïߣ¨»òÑÓ³¤Ïߣ©ÓëFÖá½Ø¾àµÄÎïÀíÒâÒåÊÇ______£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄʵÑéÖУ¨½»Á÷µçƵÂÊΪ50Hz£©

£¨1£©Èçͼ1ËùʾÊÇijͬѧͨ¹ýʵÑéµÃµ½µÄÒ»ÌõÖ½´ø£¬ËûÔÚÖ½´øÉÏÈ¡A¡¢B¡¢C¡¢D¡¢E¡¢F¡¢GµÈ7¸ö¼ÆÊýµã£¨Ã¿ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä»¹ÓÐ4¸öµãûÓл­³ö£©£¬½«ºÁÃ׿̶ȳ߷ÅÔÚÖ½´øÉÏ£®¸ù¾ÝͼÒÒ¿ÉÖª£¬´òÏÂEµãʱС³µµÄËÙ¶ÈΪ______m/s£®Ð¡³µµÄ¼ÓËÙ¶ÈΪ______m/s2£®£¨¼ÆËã½á¹û¾ù±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
£¨2£©ÁíһͬѧÔÚ¸ÃʵÑéÖиù¾ÝµÃµ½µÄʵÑéÊý¾Ý»­³öa-FͼÏߣ¬Èçͼ2Ëùʾ£®¸ù¾Ýͼ±í·ÖÎö£¬ÊµÑé²Ù×÷ÖдæÔÚµÄÎÊÌâ¿ÉÄÜÊÇ______£¨Ìî×ÖĸÐòºÅ£©
A¡¢Ã»ÓÐƽºâĦ²ÁÁ¦
B¡¢Æ½ºâĦ²ÁÁ¦Ê±Ä¾°åÇã½Ç¹ýС
C¡¢Æ½ºâĦ²ÁÁ¦Ê±Ä¾°åÇã½Ç¹ý´ó
D¡¢Ð¡³µÖÊÁ¿Ì«´ó
£¨3£©ÔÚ̽¾¿¼ÓËÙ¶ÈÓëÖÊÁ¿µÄ¹Øϵʱ£¬ÎªÁËÖ±¹ÛÅж϶þÕß¼äµÄ¹Øϵ£¬Ó¦×÷³ö______ͼÏó£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÏÖÒªÓÃÈçͼ¼×ËùʾµÄ×°ÖÃ̽¾¿¡°ÎïÌåµÄ¼ÓËÙ¶ÈÓëÊÜÁ¦µÄ¹Øϵ¡±£®Ð¡³µËùÊÜÀ­Á¦¼°ÆäËٶȵĴóС¿É·Ö±ðÓÉÀ­Á¦´«¸ÐÆ÷ºÍËٶȴ«¸ÐÆ÷¼Ç¼ÏÂÀ´£®Ëٶȴ«¸ÐÆ÷°²×°ÔÚ¾àÀëL=48.0cmµÄ³¤Ä¾°åµÄA¡¢BÁ½µã£®

¢ÙʵÑéÖ÷Òª²½ÖèÈçÏ£º
A£®½«À­Á¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£»
B£®Æ½ºâĦ²ÁÁ¦£¬ÈÃС³µÔÚûÓÐÀ­Á¦×÷ÓÃʱÄÜ×öÔÈËÙÖ±ÏßÔ˶¯£»
C£®°ÑϸÏßµÄÒ»¶Ë¹Ì¶¨ÔÚÀ­Á¦´«¸ÐÆ÷ÉÏ£¬ÁíÒ»¶Ëͨ¹ý¶¨»¬ÂÖÓë¹³ÂëÏàÁ¬£»
D£®½ÓͨµçÔ´ºó×ÔCµãÊÍ·ÅС³µ£¬Ð¡³µÔÚϸÏßÀ­¶¯ÏÂÔ˶¯£¬¼Ç¼ϸÏßÀ­Á¦FµÄ´óС¼°Ð¡³µ·Ö±ðµ½´ïA¡¢BʱµÄËÙÂÊ
vA¡¢vB£»
E£®¸Ä±äËù¹Ò¹³ÂëµÄÊýÁ¿£¬Öظ´DµÄ²Ù×÷£®
¢ÚϱíÖмǼÁËʵÑé²âµÃµÄ¼¸×éÊý¾Ý£¬vB2-vA2ÊÇÁ½¸öËٶȴ«¸ÐÆ÷¼Ç¼µÄËÙÂʵÄƽ·½²î£¬Ôò¼ÓËٶȵıí´ïʽa=______£®
±íÖеĵÚ3´ÎʵÑéÊý¾ÝÓ¦¸ÃΪa=______m/s2£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£®
¢ÛÈçͼÒÒËùʾµÄ×ø±êÖ½ÉÏÒѾ­»æ³öÁËÀíÂÛÉϵÄa-FͼÏó£®Çë¸ù¾Ý±íÖÐÊý¾Ý£¬ÔÚ×ø±êÖ½ÉÏ×÷³öÓÉʵÑé²âµÃµÄa-FͼÏߣ®
´ÎÊýF£¨N£©vB2-vA2£¨m2/s2£©a£¨m/s2£©
10.600.770.80
21.041.611.68
31.422.34
42.624.654.84
53.005.495.72
¢Ü¶Ô±ÈʵÑé½á¹ûÓëÀíÂÛ¼ÆËãµÃµ½µÄÁ½¸ö¹ØϵͼÏߣ¬·ÖÎöÔì³ÉÉÏÊöÆ«²îµÄÖ÷ÒªÔ­ÒòÊÇ______£®£¨Ð´³öÒ»¸öÔ­Òò¼´¿É£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ijѧÉú×ö¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄʵÑéÖУ®ÔÚƽºâĦ²ÁÁ¦Ê±£¬°Ñ³¤Ä¾°åÒ»¶ËµæµÃ¹ý¸ß£¬Ê¹µÃÇã½ÇÆ«´ó£¬ËûËùµÃµÄa-F¹Øϵ¿ÉÓÃÄĸùͼÏß±íʾ£¨¡¡¡¡£©£¨Í¼ÖУ¬aÊÇС³µµÄ¼ÓËٶȣ¬FÊÇϸÏß×÷ÓÃС³µµÄÀ­Á¦£©
A£®AB£®BC£®CD£®D

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸