£¨1£©£¨4·Ö£©¢ÙÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬ÓÐÏÂÁÐÆ÷²Ä¿É¹©Ñ¡Ôñ£ºÌú¼Ų̈¡¢µç´Å´òµã¼ÆʱÆ÷¡¢¸´Ð´Ö½¡¢µÍѹֱÁ÷µçÔ´¡¢Ììƽ¡¢ÖØÎï¡¢Ö½´ø¡¢µ¼Ïß¡¢Ãë±í¡¢¿ª¹Ø¡¢¼Ð×Ó£¬»¹È±ÉÙµÄÆ÷²ÄÊÇ                 ¡£
¢ÚijͬѧÓÃÓα꿨³ß²âÁ¿Ò»±¡µÄ½ðÊôԲƬµÄÖ±¾¶£¬¶Á³öͼÖеÄʾÊý£¬
¸Ã½ðÊôԲƬµÄÖ±¾¶µÄ²âÁ¿ÖµÎª        cm

£¨2£©£¨8·Ö£©²âÁ¿Ð¡Îï¿éQÓëƽ°åPÖ®¼äµÄ¶¯Ä¦²ÁÒòÊýµÄʵÑé×°ÖÃÈçͼËùʾ¡£ABÊǰ뾶×ã¹»´óµÄ¡¢¹â»¬µÄËÄ·ÖÖ®Ò»Ô²»¡¹ìµÀ£¬Óëˮƽ¹Ì¶¨·ÅÖõÄP°åµÄÉϱíÃæBCÔÚBµãÏàÇУ¬CµãÔÚˮƽµØÃæµÄ´¹Ö±Í¶Ó°ÎªC¡ä¡£ÖØÁ¦¼ÓËÙ¶ÈΪg¡£ÊµÑé²½ÖèÈçÏ£º
¢ÙÓÃÌìƽ³Æ³öÎï¿éQµÄÖÊÁ¿m£»
¢Ú²âÁ¿³ö¹ìµÀABµÄ°ë¾¶R¡¢BCµÄ³¤¶ÈLºÍCC/µÄ¸ß¶Èh£»
¢Û½«Îï¿éQÔÚAµãÓɾ²Ö¹ÊÍ·Å£¬ÔÚÎï¿éQÂäµØ´¦±ê¼ÇÆäÂäµØµãD£»
¢ÜÖظ´²½Öè¢Û£¬¹²×ö10´Î£»
¢Ý½«10¸öÂäµØµãÓÃÒ»¸ö¾¡Á¿Ð¡µÄԲΧס£¬ÓÃÃ׳߲âÁ¿Ô²Ðĵ½C¡äµÄ¾àÀës¡£
ÓÃʵÑéÖеIJâÁ¿Á¿±íʾ£º

£¨¢¡£©Îï¿éQµ½´ïBµãʱµÄ¶¯ÄÜEkB£½__________£»
£¨¢¢£©Îï¿éQµ½´ïCµãʱµÄ¶¯ÄÜEkC£½__________£»
£¨¢££©ÔÚÎï¿éQ´ÓBÔ˶¯µ½CµÄ¹ý³ÌÖУ¬Îï¿éQ¿Ë·þĦ²ÁÁ¦×öµÄ¹¦Wf£½__________£»
£¨¢¤£©Îï¿éQÓëƽ°åPÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¦Ì£½__________¡£
£¨1£©¢ÙµÍѹ½»Á÷µçÔ´¡¢¿Ì¶È³ß  ¢Ú10.155
£¨2£©£¨¢¡£©mgR   £¨¢¢£© £¨¢££©mgR  
£¨¢¤£©

ÊÔÌâ·ÖÎö£ºÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬ÐèÒªµÄÆ÷²Ä£ºÌú¼Ų̈¡¢µç´Å´òµã¼ÆʱÆ÷¡¢¸´Ð´Ö½¡¢µÍѹֱÁ÷µçÔ´¡¢Ììƽ¡¢ÖØÎï¡¢Ö½´ø¡¢µ¼Ïß¡¢Ãë±í¡¢¿ª¹Ø¡¢¼Ð×Ó¡¢µÍѹ½»Á÷µçÔ´¡¢¿Ì¶È³ß¡£
Óα꿨³ß¶ÁÊý£ºÖ÷³ß£¨mm£©+n¡Á¾«È·¶È   n±íʾ£ºµÚnÌõ¿Ì¶ÈÏßÓëÖ÷³ßÉÏijһ¿Ì¶ÈÏ߶ÔÆë¡£
Îï¿éQµ½´ïBµãʱµÄ¶¯ÄÜ¡¢Îï¿éQµ½´ïCµãʱµÄ¶¯ÄÜ¡¢ÔÚÎï¿éQ´ÓBÔ˶¯µ½CµÄ¹ý³ÌÖУ¬Îï¿éQ¿Ë·þĦ²ÁÁ¦×öµÄ¹¦Wf ¡¢Îï¿éQÓëƽ°åPÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý¦ÌÓɶ¯Äܶ¨Àí¿ÉÇó³ö¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

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

ijͬѧÔÚÊúÖ±Ðü¹ÒµÄµ¯»Éϼӹҹ³Â룬̽¾¿µ¯Á¦Ó뵯»ÉÉ쳤Á¿µÄ¹Øϵ£®ÉϱíÊǸÃͬѧµÄʵÑéÊý¾Ý£®ÊµÑéʱµ¯»ÉʼÖÕ䳬¹ýµ¯ÐÔÏ޶ȡ£gÈ¡10m£¯s2¡£
íÀÂëÖÊÁ¿m¡Á10£­3 kg
0
30
60
90
120
150
µ¯»É×ܳ¤¶Èl¡Á10£­2 m
6.0
7.2
8.3
9.5
10.6
11.8
(1)¸ù¾ÝʵÑéÊý¾ÝÔڴ𰸾íµÄ×ø±êϵÖÐ×÷³öµ¯Á¦F¸úµ¯»ÉÉ쳤Á¿x¹ØϵµÄͼÏó£®

(2) ¸ù¾ÝͼÏóµÃµ½µ¯»ÉµÄ¾¢¶ÈϵÊýÊÇ______N/m.£¨½á¹û±£Áô2λÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

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

¹âµç¼ÆʱÆ÷ÊÇÒ»ÖÖ³£ÓüÆʱÒÇÆ÷£¬Æä½á¹¹ÈçͼËùʾ£¬a¡¢b·Ö±ðÊǹâµçÃŵļ¤¹â·¢ÉäºÍ½ÓÊÕ×°Ö㬵±Óл¬¿é´Óa¡¢b¼äͨ¹ýʱ£¬¹âµç¼ÆʱÆ÷¾Í¿ÉÒÔÏÔʾÎïÌåµÄµ²¹âʱ¼ä£®ÏÖÓÐij»¬¿éͨ¹ý¹âµçÃÅ£¬¼ÆʱÆ÷ÏÔʾµÄµ²¹âʱ¼äÊÇ5¡Á10s£¬ÓÃ×îС·Ö¶ÈֵΪl mmµÄÖ±³ß²âÁ¿Ð¡»¬¿éµÄ³¤¶Èd£¬Ê¾ÊýÈçͼËùʾ¡£

£¨1£©¶Á³ö»¬¿éµÄ³¤¶Èd=____________cm
£¨2£©»¬¿éͨ¹ý¹âµçÃŵÄËÙ¶Èv=__________m/s

²é¿´´ð°¸ºÍ½âÎö>>

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

ÈçͼËùʾΪ¡°ÑéÖ¤ÅöײÖеĶ¯Á¿Êغ㡱µÄʵÑé×°Öá£

£¨1£©ÏÂÁÐ˵·¨·ûºÏ±¾ÊµÑéÒªÇóµÄÊÇ            ¡£
A£®ÈëÉäÇò±È°ÐÇòÖÊÁ¿´ó»òÕßС¾ù¿ÉB£®Ã¿´ÎÈëÉäÇò±ØÐë´Óͬһ¸ß¶ÈÓɾ²Ö¹ÊÍ·Å
C£®°²×°¹ìµÀʱĩ¶ËÇÐÏß±ØÐëˮƽD£®ÊµÑéÖÐÐèÒª²âÁ¿¹ìµÀÄ©¶ËÀëµØÃæµÄ¸ß¶È
£¨2£©ÊµÑéÖмǼÁ˹ìµÀÄ©¶ËÔڼǼֽÉϵÄÊúֱͶӰΪOµã£¬¾­¶à´ÎÊÍ·ÅÈëÉäÇò£¬ÔڼǼֽÉÏÕÒµ½ÁËÁ½ÇòµÄƽ¾ùÂäµãλÖÃM¡¢P¡¢N£¬²¢²âµÃËüÃǵ½OµãµÄ¾àÀë·Ö±ðΪ¡¢ºÍ¡£ÒÑÖªÈëÉäÇòµÄÖÊÁ¿Îª£¬°ÐÇòµÄÖÊÁ¿Îª£¬Ö»ÒªÑéÖ¤µÈʽ         ³ÉÁ¢£¬¼´¿ÉÈÏΪÅöײÖеĶ¯Á¿Êغ㡣
£¨3£©Âú×㣨2£©µÄÇé¿öÏ£¬ÈôÂú×ãµÈʽ                 ³ÉÁ¢£¬¼´¿ÉÈÏΪÅöײΪµ¯ÐÔÅöײ¡££¨½öÓᢺͱíʾ£©

²é¿´´ð°¸ºÍ½âÎö>>

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

£¨18·Ö£©£¨1£©ÓÃÈçͼ£¨¼×£©ËùʾµÄʵÑé×°ÖÃÀ´Ñé֤ţ¶ÙµÚ¶þ¶¨ÂÉ£¬ÎªÏû³ýĦ²ÁÁ¦µÄÓ°Ï죬ʵÑéÇ°±ØÐëƽºâĦ²ÁÁ¦£®

¢ÙijͬѧƽºâĦ²ÁÁ¦Ê±ÊÇÕâÑù²Ù×÷µÄ£º½«Ð¡³µ¾²Ö¹µØ·ÅÔÚˮƽ³¤Ä¾°åÉÏ£¬°Ñľ°å²»´ø»¬ÂÖµÄÒ»¶ËÂýÂýµæ¸ß£¬Èçͼ£¨ÒÒ£©£¬Ö±µ½Ð¡³µÓɾ²Ö¹¿ªÊ¼ÑØľ°åÏòÏ»¬¶¯ÎªÖ¹£®ÇëÎÊÕâλͬѧµÄ²Ù×÷ÊÇ·ñÕýÈ·£¿Èç¹û²»ÕýÈ·£¬Ó¦µ±ÈçºÎ½øÐУ¿´ð£º                              £®
¢ÚÈç¹ûÕâλͬѧÏÈÈç¢ÙÖеIJÙ×÷£¬È»ºó²»¶Ï¸Ä±ä¶ÔС³µµÄÀ­Á¦F£¬ËûµÃµ½M£¨Ð¡³µÖÊÁ¿£©±£³Ö²»±äÇé¿öϵÄa¡ªFͼÏßÊÇÏÂͼÖеĠ       £¨ÌîÑ¡Ïî´úºÅµÄ×Öĸ£©£®

¢ÛÈô½»Á÷µçµÄƵÂÊΪ£¬Ä³Í¬Ñ§ÔÚÕýÈ·²Ù×÷Ï»ñµÃµÄÒ»ÌõÖ½´ø£¬A¡¢B¡¢C¡¢D¡¢EÿÁ½µãÖ®¼ä»¹ÓÐ4¸öµãûÓбê³ö£®Ð´³öÓÃs1¡¢s2¡¢s3¡¢s4ÒÔ¼°fÀ´±íʾС³µ¼ÓËٶȵıí´ïʽ£ºa=                £®

£¨2£©Ä³Í¬Ñ§ÀûÓÃÈçͼ¼×ËùʾµÄʵÑé×°ÖòâÁ¿ÖØÁ¦¼ÓËٶȡ£
¢ÙÇëÖ¸³ö¸ÃͬѧÔÚʵÑé²Ù×÷ÖдæÔÚµÄÁ½´¦´íÎó£º

a                           £»        b                           ¡£
¢Ú¸Ãͬѧ¾­ÕýÈ·²Ù×÷µÃµ½ÈçͼÒÒËùʾµÄÖ½´ø£¬È¡Á¬ÐøµÄÁù¸öµã£¬²âµÃh1¡¢h2¡¢h3¡¢h4¡¢h5£®Èô´òµãµÄÖÜÆÚΪT£¬Ôò´òEµãʱËÙ¶ÈΪvE=     £»Èô·Ö±ð¼ÆËã³ö¸÷¼ÆÊýµã¶ÔÓ¦µÄËÙ¶ÈÊýÖµ£¬²¢ÔÚ×ø±êϵÖл­³öv2ÓëhµÄ¹ØϵͼÏߣ¬Èçͼ±ûËùʾ£¬ÔòÖØÁ¦¼ÓËÙ¶È g=     m/s2£®

²é¿´´ð°¸ºÍ½âÎö>>

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

бÀ­Ë÷ÇűÈÁºÊ½ÇžßÓиü´óµÄ¿çÔ½ÄÜÁ¦£¬ÊÇÏÖ´ú´ó¿ç¾¶ÇÅÁºµÄÖØÒª½á¹¹ÐÎʽ£¬ÇŵÄбÀ­ÐüË÷Ö÷Òª³ÐÊÜÀ­Á¦¡£Ä³Ð£Ñо¿ÐÔѧϰС×éµÄͬѧÃǺÜÏëÖªµÀбÀ­Ë÷ÇŵÄÐüË÷ÄܳÐÊܵÄ×î´óÀ­Á¦£¬µ«ÓÉÓÚÐüË÷ºÜ³¤£¬¿¹¶ÏÀ­Á¦Óֺܴó£¬Ö±½Ó²âÁ¿ºÜÀ§ÄÑ£¬Í¬Ñ§ÃÇÔòÈ¡À´ÁËͬÖÖ²ÄÁÏÖƳɵÄÑùÆ·½øÐÐʵÑé̽¾¿¡£Óɺú¿Ë¶¨ÂÉ¿ÉÖª£¬ÔÚµ¯ÐÔÏÞ¶ÈÄÚ£¬µ¯»ÉµÄµ¯Á¦FÓëÐαäÁ¿x³ÉÕý±È£¬Æä±ÈÀýϵÊýÓ뵯»ÉµÄ³¤¶È¡¢ºá½ØÃæ»ý¼°²ÄÁÏÓйء£Òò¶øͬѧÃDzÂÏ룬ÐüË÷¿ÉÄÜÒ²×ñÑ­ÀàËƵĹæÂÉ¡£

¢ÙͬѧÃÇ×¼±¸Ïó¡¶Ì½¾¿µ¯»Éµ¯Á¦Ó뵯»ÉÉ쳤Á¿Ö®¼ä¹Øϵ¡·µÄʵÑéÒ»Ñù½«ÑùÆ·ÊúÖ±Ðü¹Ò£¬ÔÙÔÚÆä϶˹ÒÉϲ»Í¬ÖØÁ¿µÄÖØÎÀ´Íê³É±¾ÊµÑé¡£µ«ÓÐͬѧ˵ÐüË÷µÄÖØÁ¦ÊDz»¿ÉºöÂԵģ¬ÎªÁ˱ÜÃâÐüË÷ËùÊÜÖØÁ¦¶ÔʵÑéµÄÓ°Ï죬ÄãÈÏΪ¿ÉÐеĴëÊ©Ó¦¸ÃÊÇ£º                                                ¡£
¢Ú¾­¹ýͬѧÃdzä·ÖµÄÌÖÂÛ£¬²»¶ÏÍêÉÆʵÑé·½°¸ºó½øÐÐʵÑé¡£×îºóʵÑéÈ¡µÃÊý¾ÝÈçÏ£º
·ÖÎöÑùÆ·CµÄÊý¾Ý¿ÉÖª£¬ÆäËùÊÜÀ­Á¦F£¨µ¥Î»N£©ÓëÉ쳤Á¿x£¨µ¥Î»m£©Ö®¼ä×ñÑ­µÄº¯Êý¹ØϵʽÊÇF=                  £»¶Ô±È¸÷ÑùÆ·µÄʵÑéÊý¾Ý¿ÉÖª£¬ÐüË÷Êܵ½µÄÀ­Á¦ÓëÐüË÷µÄÉ쳤Á¿³ÉÕý±È£¬Æä±ÈÀýϵÊýÓëÐüË÷³¤¶È         ³ÉÕý±È¡¢ÓëÐüË÷µÄºá½ØÃæ»ý        ³ÉÕý±È¡£

²é¿´´ð°¸ºÍ½âÎö>>

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

ÔÚ¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÈçͼΪʵÑéµÃµ½µÄÒ»ÌõÖ½´ø£¬Ö½´øÉÏÿÏàÁÚµÄÁ½¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ô¾ùΪT£¬²âµÃA¡¢BÁ½µã¼äµÄ¾àÀëΪL1£¬B¡¢DÁ½µã¼äµÄ¾àÀëΪL2£¬ÔòÎïÌåµÄ¼ÓËٶȴóСΪa=              ¡£

²é¿´´ð°¸ºÍ½âÎö>>

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

Ñо¿Ð¡³µÔȱäËÙÖ±ÏßÔ˶¯µÄʵÑé×°ÖÃÈçͼ£¨a£©Ëùʾ£¬ÆäÖÐбÃæÇã½Ç¿Éµ÷¡£ÒÑÖªµç»ð»¨Ê½´òµã¼ÆʱÆ÷ËùÓý»Á÷µçµÄÖÜÆÚΪT¡£Ö½´øÉϼÆÊýµãµÄ¼ä¾àÈçͼ£¨b£©Ëùʾ£¬ÆäÖÐÿÏàÁÚÁ½µãÖ®¼ä»¹ÓÐ4¸ö¼Ç¼µãδ»­³ö¡£

¢Ù²¿·ÖʵÑé²½ÖèÈçÏ£º
A£®µ÷ÕûÇã½Ç£¬Ê¹Ð¡³µÄܹ»ÔÈËÙÏ»¬
B£®¹Ø±ÕµçÔ´£¬È¡³öÖ½´ø¡£
C£®½ÓͨµçÔ´£¬´ý´òµã¼ÆʱÆ÷¹¤×÷Îȶ¨ºó·Å¿ªÐ¡³µ¡£
D£®°Ñ´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚƽ°åÉÏ£¬½«Ö½´ø´©¹ýÏÞλ¿×¡£
E£®½«Ð¡³µÍ£¿¿ÔÚ´òµã¼ÆʱÆ÷¸½½ü£¬Ð¡³µÎ²²¿ÓëÖ½´øÏàÁ¬¡£
F£®Ñ¡Ôñ220V½»Á÷µçÔ´²¢½ÓºÃµç·
G£®Ñ¡Ôñ6~8VÖ±Á÷µçÔ´²¢½ÓºÃµç·
H£®Ñ¡Ôñ6~10V½»Á÷µçÔ´²¢½ÓºÃµç·
Ñ¡ÔñÆäÖбØÐëµÄʵÑé²½Öè²¢°´ÕýÈ·µÄÏȺó˳ÐòÅÅÁУº___     ____£¨ÓÃ×ÖĸÌîд£©¡£
¢ÚÈç¹ûµ±Ê±µçÍøÖн»±äµçÁ÷µÄÖÜÆÚ²»Õý³££¬±ÈÒÑÖªµÄTÂԴ󣬶ø×öʵÑéµÄͬѧ²¢²»ÖªµÀ£¬ÄÇô¼ÓËٶȵIJâÁ¿ÖµÓëʵ¼ÊÖµÏà±È       £¨Ñ¡Ìƫ´ó¡¢Æ«Ð¡»ò²»±ä£©£®
¢ÛС³µ¼ÓËٶȴóСµÄ¼ÆËãʽӦΪa=_____       ____.

²é¿´´ð°¸ºÍ½âÎö>>

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

£¨10·Ö£©ÔÚ¡° ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑéÖУ¬ÏÖÓÐľ°å¡¢°×Ö½¡¢Í¼¶¤¡¢ÏðƤ½î¡¢Ï¸ÉþÌ׺ÍÒ»°Ñµ¯»É³Ó¡£
(1)ΪÍê³ÉʵÑé,ijͬѧÁíÕÒÀ´Ò»¸ùµ¯»É,ÏȲâÁ¿Æä¾¢¶ÈϵÊý,µÃµ½µÄʵÑéÊý¾ÝÈçÏÂ±í£º
ÓÃ×÷ͼ·¨ÇóµÃ¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýk=________N/m£»

(2)ij´ÎʵÑéÖУ¬µ¯»É³ÓµÄÖ¸ÕëλÖÃÈçͼ£¬Æä¶ÁÊýΪ________N£»Í¬Ê±ÀûÓÃ(1)Öнá¹û»ñµÃµ¯»ÉÉϵĵ¯Á¦ÖµÎª2.50 N£¬ÇëÔÚ´ðÌâÖ½ÉÏ»­³öÕâÁ½¸ö¹²µãÁ¦µÄºÏÁ¦FºÏ£»
 
(3)ÓÉͼµÃµ½FºÏ=________N¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸