16£®ÈçͼËùʾÊÇÎïÌå×öÔȱäËÙÖ±ÏßÔ˶¯µÃµ½µÄÒ»ÌõÖ½´ø£¬´ÓOµã¿ªÊ¼£¬Ã¿5¸öµãȡһ¸ö¼ÆÊýµã£¬ÒÀÕÕ´òµãµÄ˳ÐòÒÀ´Î±àºÅΪ1¡¢2¡¢3¡¢4¡¢5¡¢6£¬²âµÃx1=5.12cm£¬x2=4.34cm£¬x3=3.56cm£¬x4=2.78cm£¬x5=2.00cm£¬x6=1.22cm£®

£¨1£©´òµã¼ÆÊ±Æ÷´òµÚ3¸ö¼ÆÊýµãʱ£¬ÎïÌåµÄËÙ¶È´óСΪ0.317m/s£¬·½ÏòΪA¡úB£¨Ìî¡°A¡úB¡±»ò¡°B¡úA¡±£©£»
£¨2£©ÎïÌåµÄ¼ÓËÙ¶È´óСΪ0.78m/s2£¬·½ÏòΪB¡úA£¨Ìî¡°A¡úB¡±»ò¡°B¡úA¡±£©£®

·ÖÎö ¸ù¾Ýij¶Îʱ¼äÄ򵀮½¾ùËٶȵÈÓÚÖмäʱ¿ÌµÄ˲ʱËÙ¶ÈÇó³öµÚ3¸öµãµÄ˲ʱËÙ¶È£¬¸ù¾ÝÁ¬ÐøÏàµÈʱ¼äÄÚµÄÎ»ÒÆÖ®²îÊÇÒ»ºãÁ¿Çó³ö¼ÓËÙ¶È£®

½â´ð ½â£º£¨1£©ÒòΪ´òµãµÄÖÜÆÚΪ0.02s£¬Ã¿5¸öµãȡһ¸ö¼ÆÊýµã£¬¿ÉÖªÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪ0.1s£®
µÚ3¸öµãµÄ˲ʱËٶȵÈÓÚ2¡¢4Á½µã¼äµÄƽ¾ùËÙ¶È£¬Ôòv3=$\frac{{x}_{3}+{x}_{4}}{2T}$=$\frac{£¨3.56+2.78£©¡Á1{0}^{-2}}{0.2}$ m/s=0.317m/s£¬
ÓÉÓÚOµãÊÇÏÈ´òµÄµã£¬¿ÉÖª·½ÏòÊÇA¡úB£®
£¨2£©¸ù¾Ý¡÷x=aT2£¬ÔËÓÃÖð²î·¨µÃ£¬a=$\frac{£¨{x}_{4}+{x}_{5}+{x}_{6}£©-£¨{x}_{1}+{x}_{2}+{x}_{3}£©}{9{T}^{2}}$=$\frac{£¨2.78+2.00+1.22£©-£¨5.12+4.34+3.56£©}{9¡Á0£®{1}^{2}}$¡Á10-2=-0.78m/s2£¬
¿ÉÖª¼ÓËٶȵĴóСΪ0.78m/s2£¬·½ÏòÊÇB¡úA£®
¹Ê´ð°¸Îª£º£¨1£©0.317£¬A¡úB   
£¨2£©0.78£¬B¡úA£®

µãÆÀ ½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕÖ½´øµÄ´¦Àí·½·¨£¬»áͨ¹ýÖ½´øÇó½â˲ʱËٶȺͼÓËÙ¶È£¬¹Ø¼üÊÇÔȱäËÙÖ±ÏßÔ˶¯ÍÆÂÛµÄÔËÓã®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

6£®ÈçͼËùʾ£¬Ë®Æ½µØÃæÉÏÓÐÁ½¸öÍêÈ«ÏàͬµÄÇòA¡¢B£¬ÖØÁ¦´óСΪG£¬°ë¾¶ÎªR£®Ò»¸ùÇáÉþÁ½¶Ë·Ö±ð¹Ì¶¨ÔÚÁ½¸öÇòÉÏ£¬ÔÚÉþµÄÖеãÊ©¼ÓÒ»¸öÊúÖ±ÏòÉϵÄÀ­Á¦F£¬Éþ±»À­Ö±£¬´ËʱÁ½Çò¸ÕºÃÄÜÀ뿪µØÃ棬ÇÒÇáÉþµÄÑÓ³¤Ïß¹ýÇòÐÄ£¬ÔòÒÔÏÂ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®ÇáÉþÔ½³¤£¬FÔ½´óB£®ÇáÉþÔ½³¤£¬ÇáÉþµÄÕÅÁ¦Ô½´ó
C£®ÇáÉþÔ½¶Ì£¬A¡¢BÖ®¼äµÄµ¯Á¦Ô½´óD£®ÇáÉþÔ½¶Ì£¬A¡¢BÖ®¼äµÄĦ²ÁÁ¦Ô½Ð¡

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

7£®ÈçͼËùʾÊÇÔ­×Ӻ˵ĺË×ÓÆ½¾ùÖÊÁ¿ÓëÔ­×ÓÐòÊýZµÄ¹ØÏµÍ¼Ïó£¬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®ÈôDºÍE½áºÏ³ÉF£¬½áºÏ¹ý³ÌÖÐÒ»¶¨»áÎüÊÕºËÄÜ
B£®ÈôDºÍE½áºÏ³ÉF£¬½áºÏ¹ý³ÌÖÐÒ»¶¨»áÊͷźËÄÜ
C£®ÈôA·ÖÁѳÉBºÍC£¬·ÖÁѹý³ÌÖÊÁ¿ÊýÒ»¶¨Ôö¼Ó
D£®ÈôA·ÖÁѳÉBºÍC£¬·ÖÁѹý³ÌÖÊÁ¿ÊýÒ»¶¨¼õС

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

4£®ÏÂÁнáÂÛÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®µ¯»ÉµÄµ¯Á¦ºÍµ¯»ÉµÄ³¤¶È³ÉÕý±È
B£®µ¯»ÉµÄµ¯Á¦×ÜÊǺ͵¯»ÉÉ쳤Á¿³ÉÕý±È
C£®µ¯»ÉµÄµ¯Á¦×ÜÊǺ͵¯»É±»Ñ¹ËõµÄ³¤¶È³ÉÕý±È
D£®ÔÚµ¯ÐÔÏÞ¶È·¶Î§ÄÚ£¬µ¯»É²úÉúµÄµ¯Á¦Ó뵯»ÉµÄÐαäÁ¿³ÉÕý±È

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

11£®ÓɴŸÐӦǿ¶ÈµÄ¶¨ÒåʽB=$\frac{F}{IL}$¿ÉÖª£¨¡¡¡¡£©
A£®´Å¸ÐӦǿ¶ÈÓëͨµçµ¼ÏßËùÊܵ½µÄ°²ÅàÁ¦³ÉÕý±È£¬ÓëµçÁ÷Ç¿¶ÈºÍµ¼Ïß³¤¶ÈµÄ³Ë»ý³É·´±È
B£®´Å¸ÐӦǿ¶ÈµÄ·½ÏòÓëFµÄ·½ÏòÏàͬ
C£®¹«Ê½B=$\frac{F}{IL}$Ö»ÊÊÓÃÓÚÔÈÇ¿´Å³¡
D£®Ö»ÒªÂú×ãLºÜ¶ÌIºÜСµÄÌõ¼þ£¬B=$\frac{F}{IL}$¶ÔÈκδų¡¶¼ÊÊÓÃ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

1£®ÔÚ¹ú¼Êµ¥Î»ÖÆÖУ¬ÊôÓÚ»ù±¾µ¥Î»µÄÊÇ£¨¡¡¡¡£©
A£®Å£¶ÙB£®Ã×C£®ÌØË¹À­D£®½¹¶ú

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

8£®Ð¡º¢ÑØ»¬ÌÝÔÈËÙÏ»¬¹ý³ÌÖУ¨¡¡¡¡£©
A£®¶¯ÄܼõСB£®¶¯ÄÜÔö´óC£®ÖØÁ¦ÊÆÄܼõСD£®»úеÄÜÔö´ó

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

5£®Êý×Ö»¯ÐÅϢϵͳ£¨DIS£©ÊÇÓÉ´«¸ÐÆ÷¡¢Êý¾Ý²É¼¯Æ÷ºÍ¼ÆËã»úÈý²¿·Ö¹¹³É£®¡°ÓÃDIS²â¶¨Ë²Ê±ËÙ¶È¡±µÄʵÑé×°ÖÃÈçͼËùʾ£¬µ²¹âƬ¿í¶ÈΪ5¡Á10-3m£¬ÊµÑéÖе²¹âƬͨ¹ý¹âµçÃŵÄʱ¼äΪ0.02s£¬ÔòС³µ´ËʱµÄ˲ʱËÙ¶ÈΪ0.25m/s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ

6£®ÔÚ¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯µÄ¹æÂÉ¡±µÄʵÑéÖÐijͬѧ»ñµÃµÄÒ»ÌõÖ½´øÈçͼËùʾ£®

£¨1£©ÒÑÖª´òµã¼ÆÊ±Æ÷µçԴƵÂÊΪ50Hz£¬ÔòÖ½´øÉÏ´òÏàÁÚÁ½µãµÄʱ¼ä¼ä¸ôΪ0.02s£®
£¨2£©A¡¢B¡¢C¡¢D¡¢E¡¢F¡¢GÊÇÖ½´øÉÏ7¸ö¼ÆÊýµã£¬Ã¿Á½¸öÏàÁÚ¼ÆÊýµã¼äÓÐËĸöµãûÓл­³ö£¬´ÓͼÖжÁ³öA¡¢BÁ½µã¼ä¾àx=3.0¡Á10-3m£» Cµã¶ÔÓ¦µÄËÙ¶ÈÊÇ0.06m/s£® £¨¼ÆËã½á¹û±£Áô¶þλÓÐЧÊý×Ö£©£®
£¨3£©ÈôʵÑéºó·¢ÏÖ£¬Êµ¼ÊËùÓý»Á÷µçµÄƵÂʸßÓÚ50Hz£¬ÔòÉÏÊö¼ÆËã½á¹ûÓëʵ¼ÊÖµÏà±ÈÊÇÆ«Ð¡£®£¨Ìî¡°Æ«´ó¡±£¬¡°Æ«Ð¡¡±£¬»¹ÊÇ¡°²»±ä¡±£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸