ijͬѧÓôòµã¼ÆʱÆ÷̽¾¿Ð¡³µËÙ¶ÈËæʱ¼ä±ä»¯µÄ¹æÂÉ£®
£¨1£©ÇëÔÚÏÂÃæÁгöµÄʵÑéÆ÷²ÄÖУ®Ñ¡³ö±¾ÊµÑéÖв»ÐèÒªµÄÆ÷²ÄÌîÔÚºáÏßÉÏ______ £¨ÌîÆ÷²ÄÇ°µÄ±àºÅ£©£º
¢Ù´òµã¼ÆʱÆ÷¢ÚÌìƽ¢ÛµÍѹ½»Á÷µçÔ´¢ÜµÍѹֱÁ÷µçÔ´¢ÝϸÉþºÍÖ½´ø¢Þ¹³ÂëºÍС³µ¢ßÃë±í¢àÒ»¶ËÓл¬Âֵij¤Ä¾°å¢á¿Ì¶È³ß
£¨2£©ÊµÑéÖлñµÃÒ»ÌõÖ½´ø£¬ÈçͼËùʾ£®ÆäÖÐÁ½ÏàÁÚ¼ÆÊýµã¼äÓÐËĸöµãδ»­³ö£®ÒÑÖªËùÓõçÔ´µÄƵÂÊΪ50Hz£¬Ôò´òAµãʱС³µÔ˶¯µÄËÙ¶ÈvA=______m/s£¬Ð¡³µÔ˶¯µÄ¼ÓËÙ¶Èa=______m/s2£®£¨½á¹ûÒªÇó±£ÁôÈýλÓÐЧÊý×Ö£©

½â£º£¨1£©±¾ÊµÑé²»ÐèÒª²âÁ¿ÎïÌåµÄÖÊÁ¿£¬¹Ê²»ÐèÒª¢ÚÌìƽ£¬
´òµã¼ÆʱÆ÷½Ó½»Á÷µçÔ´£¬¹Ê²»Òª¢ÜµÍѹֱÁ÷µçÔ´£¬
´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öµãÄܹ»ÊµÏÖ¼Æʱ¹¦ÄÜ£¬¹Ê²»ÐèÒª¢ßÃë±í£®
¹Ê²»ÐèÒª¢Ú¢Ü¢ß£®
£¨2£©ÒòΪÿÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµã£¬ËùÒÔÏàÁڵļÆÊýµãÖ®¼äµÄʱ¼ä¼ä¸ôΪT=0.1s£®
¸ù¾ÝÖмäʱ¿ÌËٶȵÈÓÚÒ»¶Î¹ý³ÌÖеÄƽ¾ùËٶȿÉÇó³öijµãµÄ˲ʱËٶȵÃ
vA==0.337m/s
¸ù¾ÝÔ˶¯Ñ§¹«Ê½µÃ£º¡÷x=at2£¬
a==0.393 m/s2£¬
¹Ê´ð°¸Îª£º£¨1£©¢Ú¢Ü¢ß
£¨2£©0.337£¬0.393
·ÖÎö£ºÁ˽âʵÑéµÄ×°Öú͹¤×÷Ô­Àí£®
Ö½´øʵÑéÖУ¬ÈôÖ½´øÔȱäËÙÖ±ÏßÔ˶¯£¬¸ù¾ÝÖмäʱ¿ÌËٶȵÈÓÚÒ»¶Î¹ý³ÌÖеÄƽ¾ùËٶȿÉÇó³öijµãµÄ˲ʱËٶȣ¬¸ù¾ÝÔ˶¯Ñ§¹«Ê½¡÷x=at2ÇóµÃ¼ÓËٶȣ®
µãÆÀ£ºÒª×¢ÒⵥλµÄ»»ËãºÍÓÐЧÊý×ֵı£Áô£®
¶ÔÓÚÖ½´øµÄÎÊÌ⣬ÎÒÃÇÒªÊìϤÔȱäËÙÖ±ÏßÔ˶¯µÄÌصãºÍһЩ¹æÂÉ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ̽¾¿ÎïÌåµÄ¼ÓËÙ¶ÈaÓëÎïÌåËùÊÜÍâÁ¦F¡¢ÎïÌåÖÊÁ¿M¼äµÄ¹Øϵʱ£¬²ÉÓÃÈçͼËùʾµÄʵÑé×°Öã¬Ð¡³µ¼°³µÖеÄíÀÂëÖÊÁ¿ÓÃM±íʾ£¬Å̼°ÅÌÖеÄíÀÂëÖÊÁ¿ÓÃm±íʾ£®
¾«Ó¢¼Ò½ÌÍø
£¨1£©µ±MÓëmµÄ´óС¹ØϵÂú×ã
 
ʱ£¬²Å¿ÉÒÔÈÏΪÉþ×Ó¶ÔС³µµÄÀ­Á¦´óСµÈÓÚÅ̺ÍíÀÂëµÄÖØÁ¦£®
£¨2£©Ä³Ò»×éͬѧÏȱ£³ÖÅ̼°ÅÌÖеÄíÀÂëÖÊÁ¿mÒ»¶¨À´×öʵÑ飬Æä¾ßÌå²Ù×÷²½ÖèÈçÏ£¬ÒÔÏÂ×ö·¨ÕýÈ·µÄÊÇ
 
£®
A£®Æ½ºâĦ²ÁÁ¦Ê±£¬Ó¦½«Å̼°ÅÌÖеÄíÀÂëÓÃϸÉþͨ¹ý¶¨»¬ÂÖϵÔÚС³µÉÏ
B£®Ã¿´Î¸Ä±äС³µµÄÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
C£®ÊµÑéʱ£¬ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D£®ÓÃÌìƽ²â³ömÒÔ¼°Ð¡³µÖÊÁ¿M£¬Ð¡³µÔ˶¯µÄ¼ÓËٶȿÉÖ±½ÓÓù«Ê½a=
mgM
Çó³ö
£¨3£©ÁíÁ½×éͬѧ±£³ÖС³µ¼°³µÖеÄíÀÂëÖÊÁ¿MÒ»¶¨£¬Ì½  ¾¿¼ÓËÙ¶ÈaÓëËùÊÜÍâÁ¦FµÄ¹Øϵ£¬ÓÉÓÚËûÃDzÙ×÷²»µ±£¬ÕâÁ½×éͬѧµÃµ½µÄa-F¹ØϵͼÏó·Ö±ðÈçͼ1ºÍͼ2Ëùʾ£¬ÆäÔ­Òò·Ö±ðÊÇ£º
ͼ1£º
 
£»
ͼ2£º
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2013ÄêÈ«¹úÆÕͨ¸ßµÈѧУÕÐÉúͳһ¿¼ÊÔÀí¿Æ×ÛºÏÄÜÁ¦²âÊÔÎïÀí£¨Ìì½ò¾í´ø½âÎö£© ÌâÐÍ£ºÎÊ´ðÌâ

£¨1£©¡°æ϶ðÒ»ºÅ¡±ºÍ¡°æ϶ð¶þºÅ¡±ÎÀÐÇÏà¼ÌÍê³ÉÁ˶ÔÔÂÇòµÄ»·Ô·ÉÐУ¬±êÖ¾×ÅÎÒ¹ú̽Ô¹¤³ÌµÄµÚÒ»½×¶ÎÒѾ­Íê³É¡£Éè¡°æ϶ð¶þºÅ¡±ÎÀÐÇ»·ÈÆÔÂÇòµÄÔ˶¯ÎªÔÈËÙÔ²ÖÜÔ˶¯£¬Ëü¾àÔÂÇò±íÃæµÄ¸ß¶ÈΪh£¬ÒÑÖªÔÂÇòµÄÖÊÁ¿ÎªM¡¢°ë¾¶ÎªR£¬ÒýÁ¦³£Á¿ÎªG£¬ÔòÎÀÐÇÈÆÔÂÇòÔ˶¯µÄÏòÐļÓËÙ¶Èa=      £¬ÏßËÙ¶Èv=       ¡£
£¨2£©Ä³ÊµÑéС×éÀûÓÃͼʾµÄ×°ÖÃ̽¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡£

¢ÙÏÂÁÐ×ö·¨ÕýÈ·µÄÊÇ                £¬£¨Ìî×Öĸ´úºÅ£©
A.µ÷½Ú»¬Âֵĸ߶ȣ¬Ê¹Ç£Òýľ¿éµÄϸÉþÓ볤ľ°å±£³ÖƽÐÐ
B.ÔÚµ÷½Úľ°åÇãб¶Èƽºâľ¿éÊܵ½µÄ»¬¶¯Ä¦²ÁÁ¦Ê±£¬½«×°ÓÐíÀÂëµÄíÀÂëͰͨ¹ý¶¨»¬ÂÖË©ÔÚľ¿éÉÏ
C.ʵÑéʱ£¬ÏÈ·Å¿ªÄ¾¿éÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D.ͨ¹ýÔö¼õľ¿éÉϵÄíÀÂë¸Ä±äÖÊÁ¿Ê±£¬²»ÐèÒªÖØе÷½Úľ°åÇãб¶È
¢ÚΪʹíÀÂëÍ°¼°Í°ÄÚíÀÂëµÄ×ÜÖØÁ¦ÔÚÊýÖµÉϽüËƵÈÓÚľ¿éÔ˶¯Ê±Êܵ½µÄÀ­Á¦£¬Ó¦Âú×ãµÄÌõ¼þÊÇíÀÂëÍ°¼°Í°ÄÚíÀÂëµÄ×ÜÖÊÁ¿                  Ä¾¿éºÍľ¿éÉÏíÀÂëµÄ×ÜÖÊÁ¿¡££¨Ìî¡°Ô¶´óÓÚ¡±¡¢¡°Ô¶Ð¡ÓÚ¡±»ò¡°½üËƵÈÓÚ¡°£©
¢Û¼×¡¢ÒÒÁ½Í¬Ñ§ÔÚͬһʵÑéÊÒ£¬¸÷È¡Ò»Ì×ͼʾµÄ×°Ö÷ÅÔÚˮƽ×ÀÃæÉÏ£¬Ä¾¿éÉϾù²»·ÅíÀÂ룬ÔÚûÓÐƽºâĦ²ÁÁ¦µÄÇé¿öÏ£¬Ñо¿¼ÓËÙ¶ÈaÓëÀ­Á¦FµÄ¹Øϵ£¬·Ö±ðµÃµ½Í¼Öмס¢ÒÒÁ½ÌõÖ±Ïß¡£Éè¼×¡¢ÒÒÓõÄľ¿éÖÊÁ¿·Ö±ðΪm¼×¡¢mÒÒ£¬¼×¡¢ÒÒÓõÄľ¿éÓëľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý·Ö±ðΪ¦Ì¼×¡¢¦ÌÒÒ£¬ÓÉͼ¿ÉÖª£¬m¼×        mÒÒ£¬¦Ì¼×      ¦ÌÒÒ¡££¨Ìî¡°´óÓÚ¡±¡¢¡°Ð¡ÓÚ¡±»ò¡°µÈÓÚ¡±£©

£¨3£©Òª²â»æÒ»¸ö±êÓС°3V  0.6W¡±Ð¡µÆÅݵķü°²ÌØÐÔÇúÏߣ¬µÆÅÝÁ½¶ËµÄµçѹÐèÒªÓÉÁãÖð½¥Ôö¼Óµ½3V£¬²¢±ãÓÚ²Ù×÷¡£ÒÑÑ¡ÓõÄÆ÷²ÄÓУº
µç³Ø×飨µç¶¯ÊÆΪ4.5V£¬ÄÚ×èÔ¼1¦¸£©£»
µçÁ÷±í£¨Á¿³ÌΪ0250mA£¬ÄÚ×èÔ¼5¦¸£©£»
µçѹ±í£¨Á¿³ÌΪ03V£¬ÄÚ×èÔ¼3k¦¸£©£»
µç¼üÒ»¸ö¡¢µ¼ÏßÈô¸É¡£
¢ÙʵÑéÖÐËùÓõĻ¬¶¯±ä×èÆ÷ӦѡÏÂÁÐÖÐµÄ      £¨Ìî×Öĸ´úºÅ£©¡£
A.»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµ20¦¸£¬¶î¶¨µçÁ÷1A£©
B.»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµ1750¦¸£¬¶î¶¨µçÁ÷0.3A£©
¢ÚʵÑéµÄµç·ͼӦѡÓÃÏÂÁеÄͼ            £¨Ìî×Öĸ´úºÅ£©¡£

¢ÛʵÑéµÃµ½Ð¡µÆÅݵķü°²ÌØÐÔÇúÏßÈçͼËùʾ¡£Èç¹û½«Õâ¸öСµÆÅݽӵ½µç¶¯ÊÆΪ1.5V£¬ÄÚ×èΪ5¦¸µÄµçÔ´Á½¶Ë£¬Ð¡µÆÅÝÏûºÄµÄ¹¦ÂÊÊÇ                  W¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2013ÄêÈ«¹úÆÕͨ¸ßµÈѧУÕÐÉúͳһ¿¼ÊÔÀí¿Æ×ÛºÏÄÜÁ¦²âÊÔÎïÀí£¨Ìì½ò¾í½âÎö°æ£© ÌâÐÍ£º¼ò´ðÌâ

£¨1£©¡°æ϶ðÒ»ºÅ¡±ºÍ¡°æ϶ð¶þºÅ¡±ÎÀÐÇÏà¼ÌÍê³ÉÁ˶ÔÔÂÇòµÄ»·Ô·ÉÐУ¬±êÖ¾×ÅÎÒ¹ú̽Ô¹¤³ÌµÄµÚÒ»½×¶ÎÒѾ­Íê³É¡£Éè¡°æ϶ð¶þºÅ¡±ÎÀÐÇ»·ÈÆÔÂÇòµÄÔ˶¯ÎªÔÈËÙÔ²ÖÜÔ˶¯£¬Ëü¾àÔÂÇò±íÃæµÄ¸ß¶ÈΪh£¬ÒÑÖªÔÂÇòµÄÖÊÁ¿ÎªM¡¢°ë¾¶ÎªR£¬ÒýÁ¦³£Á¿ÎªG£¬ÔòÎÀÐÇÈÆÔÂÇòÔ˶¯µÄÏòÐļÓËÙ¶Èa=      £¬ÏßËÙ¶Èv=       ¡£

£¨2£©Ä³ÊµÑéС×éÀûÓÃͼʾµÄ×°ÖÃ̽¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡£

¢ÙÏÂÁÐ×ö·¨ÕýÈ·µÄÊÇ                £¬£¨Ìî×Öĸ´úºÅ£©

A.µ÷½Ú»¬Âֵĸ߶ȣ¬Ê¹Ç£Òýľ¿éµÄϸÉþÓ볤ľ°å±£³ÖƽÐÐ

B.ÔÚµ÷½Úľ°åÇãб¶Èƽºâľ¿éÊܵ½µÄ»¬¶¯Ä¦²ÁÁ¦Ê±£¬½«×°ÓÐíÀÂëµÄíÀÂëͰͨ¹ý¶¨»¬ÂÖË©ÔÚľ¿éÉÏ

C.ʵÑéʱ£¬ÏÈ·Å¿ªÄ¾¿éÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´

D.ͨ¹ýÔö¼õľ¿éÉϵÄíÀÂë¸Ä±äÖÊÁ¿Ê±£¬²»ÐèÒªÖØе÷½Úľ°åÇãб¶È

¢ÚΪʹíÀÂëÍ°¼°Í°ÄÚíÀÂëµÄ×ÜÖØÁ¦ÔÚÊýÖµÉϽüËƵÈÓÚľ¿éÔ˶¯Ê±Êܵ½µÄÀ­Á¦£¬Ó¦Âú×ãµÄÌõ¼þÊÇíÀÂëÍ°¼°Í°ÄÚíÀÂëµÄ×ÜÖÊÁ¿                  Ä¾¿éºÍľ¿éÉÏíÀÂëµÄ×ÜÖÊÁ¿¡££¨Ìî¡°Ô¶´óÓÚ¡±¡¢¡°Ô¶Ð¡ÓÚ¡±»ò¡°½üËƵÈÓÚ¡°£©

¢Û¼×¡¢ÒÒÁ½Í¬Ñ§ÔÚͬһʵÑéÊÒ£¬¸÷È¡Ò»Ì×ͼʾµÄ×°Ö÷ÅÔÚˮƽ×ÀÃæÉÏ£¬Ä¾¿éÉϾù²»·ÅíÀÂ룬ÔÚûÓÐƽºâĦ²ÁÁ¦µÄÇé¿öÏ£¬Ñо¿¼ÓËÙ¶ÈaÓëÀ­Á¦FµÄ¹Øϵ£¬·Ö±ðµÃµ½Í¼Öмס¢ÒÒÁ½ÌõÖ±Ïß¡£Éè¼×¡¢ÒÒÓõÄľ¿éÖÊÁ¿·Ö±ðΪm¼×¡¢mÒÒ£¬¼×¡¢ÒÒÓõÄľ¿éÓëľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý·Ö±ðΪ¦Ì¼×¡¢¦ÌÒÒ£¬ÓÉͼ¿ÉÖª£¬m¼×        mÒÒ£¬¦Ì¼×      ¦ÌÒÒ¡££¨Ìî¡°´óÓÚ¡±¡¢¡°Ð¡ÓÚ¡±»ò¡°µÈÓÚ¡±£©

£¨3£©Òª²â»æÒ»¸ö±êÓС°3V  0.6W¡±Ð¡µÆÅݵķü°²ÌØÐÔÇúÏߣ¬µÆÅÝÁ½¶ËµÄµçѹÐèÒªÓÉÁãÖð½¥Ôö¼Óµ½3V£¬²¢±ãÓÚ²Ù×÷¡£ÒÑÑ¡ÓõÄÆ÷²ÄÓУº

µç³Ø×飨µç¶¯ÊÆΪ4.5V£¬ÄÚ×èÔ¼1¦¸£©£»

µçÁ÷±í£¨Á¿³ÌΪ0250mA£¬ÄÚ×èÔ¼5¦¸£©£»

µçѹ±í£¨Á¿³ÌΪ03V£¬ÄÚ×èÔ¼3k¦¸£©£»

µç¼üÒ»¸ö¡¢µ¼ÏßÈô¸É¡£

¢ÙʵÑéÖÐËùÓõĻ¬¶¯±ä×èÆ÷ӦѡÏÂÁÐÖÐµÄ      £¨Ìî×Öĸ´úºÅ£©¡£

A.»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµ20¦¸£¬¶î¶¨µçÁ÷1A£©

B.»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµ1750¦¸£¬¶î¶¨µçÁ÷0.3A£©

¢ÚʵÑéµÄµç·ͼӦѡÓÃÏÂÁеÄͼ            £¨Ìî×Öĸ´úºÅ£©¡£

¢ÛʵÑéµÃµ½Ð¡µÆÅݵķü°²ÌØÐÔÇúÏßÈçͼËùʾ¡£Èç¹û½«Õâ¸öСµÆÅݽӵ½µç¶¯ÊÆΪ1.5V£¬ÄÚ×èΪ5¦¸µÄµçÔ´Á½¶Ë£¬Ð¡µÆÅÝÏûºÄµÄ¹¦ÂÊÊÇ                  W¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012-2013ѧÄ긣½¨Ê¡ÏÃÃÅÊÐË«Ê®ÖÐѧ¸ßÈý£¨ÉÏ£©ÆÚÖÐÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ÔÚ̽¾¿ÎïÌåµÄ¼ÓËÙ¶ÈaÓëÎïÌåËùÊÜÍâÁ¦F¡¢ÎïÌåÖÊÁ¿M¼äµÄ¹Øϵʱ£¬²ÉÓÃÈçͼËùʾµÄʵÑé×°Öã¬Ð¡³µ¼°³µÖеÄíÀÂëÖÊÁ¿ÓÃM±íʾ£¬Å̼°ÅÌÖеÄíÀÂëÖÊÁ¿ÓÃm±íʾ£®

£¨1£©µ±MÓëmµÄ´óС¹ØϵÂú×ã______ʱ£¬²Å¿ÉÒÔÈÏΪÉþ×Ó¶ÔС³µµÄÀ­Á¦´óСµÈÓÚÅ̺ÍíÀÂëµÄÖØÁ¦£®
£¨2£©Ä³Ò»×éͬѧÏȱ£³ÖÅ̼°ÅÌÖеÄíÀÂëÖÊÁ¿mÒ»¶¨À´×öʵÑ飬Æä¾ßÌå²Ù×÷²½ÖèÈçÏ£¬ÒÔÏÂ×ö·¨ÕýÈ·µÄÊÇ______£®
A£®Æ½ºâĦ²ÁÁ¦Ê±£¬Ó¦½«Å̼°ÅÌÖеÄíÀÂëÓÃϸÉþͨ¹ý¶¨»¬ÂÖϵÔÚС³µÉÏ
B£®Ã¿´Î¸Ä±äС³µµÄÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
C£®ÊµÑéʱ£¬ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D£®ÓÃÌìƽ²â³ömÒÔ¼°Ð¡³µÖÊÁ¿M£¬Ð¡³µÔ˶¯µÄ¼ÓËٶȿÉÖ±½ÓÓù«Ê½Çó³ö
£¨3£©ÁíÁ½×éͬѧ±£³ÖС³µ¼°³µÖеÄíÀÂëÖÊÁ¿MÒ»¶¨£¬Ì½  ¾¿¼ÓËÙ¶ÈaÓëËùÊÜÍâÁ¦FµÄ¹Øϵ£¬ÓÉÓÚËûÃDzÙ×÷²»µ±£¬ÕâÁ½×éͬѧµÃµ½µÄa-F¹ØϵͼÏó·Ö±ðÈçͼ1ºÍͼ2Ëùʾ£¬ÆäÔ­Òò·Ö±ðÊÇ£º
ͼ1£º______£»
ͼ2£º______£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸