Èçͼ¼×ËùʾÊÇijͬѧ̽¾¿Ð¡³µµÄËٶȺͼÓËٶȵÄʵÑé×°Öã¬Ëü½«¹âµçÃŹ̶¨ÔÚˮƽ¹ìµÀÉϵÄBµã£¬A¡¢BÁ½ÎʵãµÄ¾àÀëΪ12.50cm£®ÓÃÖØÎïͨ¹ýϸÏßÀ­Ð¡³µ£¬ÈÃС³µ×öÖ±ÏßÔ˶¯£®
¢ÙÈôÓÃÓα꿨³ß²â³öÕÚ¹âÌõµÄ¿í¶ÈdÈçͼÒÒËùʾ£¬Ôòd=________cm£®
¢ÚʵÑéʱ½«Ð¡³µ´ÓͼÖÐλÖÃAÓɾ²Ö¹ÊÍ·Å£¬ÓÉÊý×Ö¼ÆʱÆ÷¶Á³öÕÚ¹âÌõͨ¹ý¹âµçÃŵÄʱ¼ä¡÷t=2.28¡Á10-2s£¬ÔòС³µ¾­¹ý¹âµçÃÅʱµÄËÙ¶ÈΪ________m/s£¬Ð¡³µµÄ¼ÓËÙ¶ÈΪ________m/s2£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®

1.140    0.50    1.0
·ÖÎö£ºÓα꿨³ßµÄ¶ÁÊýµÈÓÚÖ÷³ß¶ÁÊý¼ÓÉÏÓαê¶ÁÊý£¬²»Ðè¹À¶Á£¬
ÓÉÓÚÕÚ¹âÌõͨ¹ý¹âµçÃŵÄʱ¼ä¼«¶Ì£¬¿ÉÒÔÓÃƽ¾ùËٶȱíʾ˲ʱËٶȣ®¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄËÙ¶ÈλÒƹ«Ê½Çó³ö»¬¿éµÄ¼ÓËٶȣ®
½â´ð£º¢ÙÓα꿨³ßµÄÖ÷³ß¶ÁÊýΪ11mm£¬Óαê¶ÁÊýΪ0.05¡Á8mm=0.40mm£¬
ËùÒÔ×îÖÕ¶ÁÊýΪ£º11mm+0.40mm=11.40mm=1.140cm£»
¢ÚÊý×Ö¼ÆʱÆ÷¼Ç¼ͨ¹ý¹âµçÃŵÄʱ¼ä£¬ÓÉλÒƹ«Ê½¼ÆËã³öÎïÌåͨ¹ý¹âµçÃŵÄƽ¾ùËٶȣ¬
ÓøÃƽ¾ùËٶȴúÌæÎïÌåµÄ˲ʱËٶȣ¬¹ÊÔÚÕÚ¹âÌõ¾­¹ý¹âµçÃÅʱ»¬¿éµÄ˲¼äËÙ¶ÈΪ£ºv==0.50m/s
С³µµÄ¼ÓËÙ¶Èa==1.0m/s2
¹Ê´ð°¸Îª£º¢Ù1.140 ¢Ú0.50£¬1.0
µãÆÀ£º³£ÓÃÒÇÆ÷µÄ¶ÁÊýÒªÕÆÎÕ£¬ÕâÊÇÎïÀíʵÑéµÄ»ù´¡£®´¦ÀíʵÑéʱһ¶¨ÒªÕÒ³öʵÑéÔ­Àí£¬¸ù¾ÝʵÑéÔ­ÀíÎÒÃÇ¿ÉÒÔÑ°ÕÒÐèÒª²âÁ¿µÄÎïÀíÁ¿ºÍÐèҪעÒâµÄÊÂÏ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿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´£º°²»ÕÊ¡ÆÚÄ©Ìâ ÌâÐÍ£ºÊµÑéÌâ

ijͬѧ¼×µ½ÊµÑéÊÒ×ö¡°Ì½ÖªµçÔ´µç¶¯ÊƺÍÄÚ×衱µÄʵÑéʱ£¬·¢ÏÖʵÑé×ÀÉÏ»¹ÓÐÒ»¸ö¶¨Öµµç×èR0¡£ËûÉè¼ÆÈçͼËùʾµÄµç·À´²âÁ¿R0µÄ×èÖµ£¬ÊµÑéʱÓÃU1¡¢U2¡¢I·Ö±ð±íʾµç±íV1¡¢V2¡¢AµÄ¶ÁÊý£¬²¢½«»¬¶¯±ä×èÆ÷µÄ»¬Æ¬PÒƶ¯µ½²»Í¬Î»ÖÃʱ£¬¼Ç¼U1¡¢U2¡¢IµÄһϵÁÐÖµ¡£
£¨1£©ËûÔÚͬһ×ø±ê·Ö±ð×÷³öU1£­I¡¢U2£­IͼÏߣ¬ÔòËù×÷µÄÖ±ÏßбÂʽϴóµÄÊÇ______________£»
£¨2£©¶¨Öµµç×èR0µÄ¼ÆËã±í´ïʽÊÇ£ºR0=______________£¨ÓòâµÃµÄÎïÀíÁ¿±íʾ£©£¬ÈôʵÑéÖеÄËùÓвÙ×÷ºÍÊý¾Ý´¦ÀíÎÞ´íÎó£¬ÊµÑéÖвâµÃR0Öµ______________£¨Ìî¡°´óÓÚ¡±¡°µÈÓÚ¡±»ò¡°Ð¡ÓÚ¡±£©Êµ¼ÊÖµ£»
£¨3£©Í¬Ñ§ÒÒ˵£º¡°ÔÚ¼×ѧËùÓõÄʵÑéÆ÷²ÄÖУ¬Èç¹ûÖªµÀµçÁ÷±íµÄÄÚ×èrA£¬¾ÍÄÜÉÙÓÃÒ»¸öµçѹ±í²â³öµç¶¯ÊÆ¡¢ÄÚ×èÒÔ¼°R0µÄÖµ¡£ÇëÄãÔÚÐéÏß¿òÖл­³öÒÒͬѧÉèÏëµÄµç·ͼ£¬²¢Ð´³ö¼òµ¥ÊµÑé²½ÖèºÍE¡¢rA¡¢R0Èý¸öÎïÀíÁ¿µÄ¼ÆËãʽ¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸