£¨1£©Ä³ÈËÔÚijÐÐÐDZíÃæÒÔËÙÂÊvÊúÖ±ÉÏÅ×Ò»ÎïÌ壬¾­Ê±¼ätÂä»ØÊÖÖУ¬ÒÑÖª¸ÃÐÐÐǵİ뾶ΪR£¬ÔòÄÜÔÚÕâ¸öÐÐÐDZíÃ渽½üÈƸÃÐÐÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÎÀÐÇËù¾ßÓеÄËÙÂÊΪ
2vR
t
2vR
t

£¨2£©Óα꿨³ß¶ÁÊýÊÇ
10.235
10.235
cm£¬
µ±ÕýȷʹÓöàÓõç±í²âÁ¿ÎïÀíÁ¿Ê±£¬¶àÓõç±í±íÅÌʾÊýÈçͼ1Ëù³Ð£®´ËʱѡÔñ¿ª¹Ø¶Ô×¼¡Á10¦¸µµ£¬Ôò±»²âµç×èµÄ×èֵΪ
400
400
¦¸£®
£¨3£©¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿£¬ÎïÌåÊÜÁ¦¹Øϵ¡±µÄʵÑé×°ÖÃÈçͼ2Ëùʾ£¬
¢ÙʵÑéµÄÑо¿¶ÔÏóÊÇС³µ£¬µ±×÷ÓÃÁ¦Ò»¶¨Ê±£¨Ðü¹ÒµÄíÀÂëÅ̺ÍÅÌÄÚµÄíÀÂëÖØÁ¦²»±ä£©£¬Ì½¾¿¼ÓËÙ¶ÈÓëÖÊÁ¿µÄ¹Øϵʱ£¬ÒÔÏÂ˵·¨ÖÐÕýÈ·µÄÊÇ
B
B

A£®Æ½ºâĦ²ÁÁ¦Ê±£¬Ó¦½«íÀÂëÅÌÓÃϸÉþͨ¹ý¶¨»¬ÂÖϵÔÚС³µÉÏ
B£®Ã¿´Î¸Ä±äС³µÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
C£®ÊµÑéʱ£¬ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D£®Ð¡³µÔ˶¯µÄ¼ÓËٶȿÉÓÃÌìƽ²â³öС³µµÄÖÊÁ¿MºÍíÀÂëÅ̼°ÅÌÄÚíÀÂëµÄÖÊÁ¿mºó£¬Ö±½ÓÓù«Ê½a=
m
M
g
Çó³ö£®
¢ÚÈçͼ3ËùʾΪijͬѧ¸ù¾Ý²âÁ¿Êý¾Ý×÷³öµÄa-FͼÏó£¬ËµÃ÷ʵÑé´æÔÚµÄÎÊÌâÊÇ
ûÓÐƽºâĦ²ÁÁ¦»òƽºâ²»×ã
ûÓÐƽºâĦ²ÁÁ¦»òƽºâ²»×ã

£¨4£©Êµ¼ÊµçÁ÷±íÓÐÄÚ×裬¿ÉµÈЧΪÀíÏëµçÁ÷±íÓëµç×èµÄ´®Áª£®²âÁ¿Êµ¼ÊµçÁ÷±íG1ÄÚ×èr1µÄµç·Èçͼ4Ëùʾ£®¹©Ñ¡ÔñµÄÒÇÆ÷ÈçÏ£º
¢Ù´ý²âµçÁ÷±íG1£¨0¡«5mA£¬ÄÚ×èÔ¼300¦¸£©£»
¢ÚµçÁ÷±íG2£¨0¡«10mA£¬ÄÚ×èÔ¼l00¦¸£©£»
¢Û¶¨Öµµç×èR1£¨300¦¸£©£»
¢Ü¶¨Öµµç×èR2£¨10¦¸£©£»£®
¢Ý»¬¶¯±ä×èÆ÷R3£¨0¡«1000¦¸£©£»
¢Þ»¬¶¯±ä×èÆ÷R4£¨0¡«20¦¸£©£»
¢ß¸Éµç³Ø£¨1.5V£©£»
¢àµç¼üS¼°µ¼ÏßÈô¸É£®
£¨1£©¶¨Öµµç×èӦѡ
¢Û
¢Û
£¬»¬¶¯±ä×èÆ÷Ӧѡ
¢Þ
¢Þ
£®£¨ÔÚ¿Õ¸ñÄÚÌîдÐòºÅ£©
£¨2£©ÓÃÁ¬ÏßÁ¬½ÓʵÎïͼ£®
£¨3£©±ÕºÏµç¼üS£¬¶à´ÎÒƶ¯»¬¶¯´¥Í·£¬¼Ç¼¶à×éG1¡¢G2µÄ¶ÁÊýI1¡¢I2£¬ÒÔI2Ϊ×Ý×ø±ê£¬I1Ϊºá×ø±ê£¬×÷³öÏàӦͼÏߣ¬Èçͼ5Ëùʾ£®¸ù¾ÝI2-I1ͼÏßµÄбÂÊk¼°¶¨Öµµç×裬д³ö´ý²âµçÁ÷±íÄÚ×èµÄ±í´ïʽ
r1=£¨K-1£©R1
r1=£¨K-1£©R1
£®
·ÖÎö£º£¨1£©µÚÒ»ÓîÖæËÙ¶ÈÊÇÎÀÐǽüµØ·ÉÐеÄËٶȣ¬Æä¹ìµÀ°ë¾¶ÓëµØÇòµÄ°ë¾¶Ïàͬ£¬ÍòÓÐÒýÁ¦Ô¼µÈÓÚÆäÖØÁ¦£¬ÇÒÌṩÏòÐÄÁ¦£®ÓÉÔ˶¯Ñ§ÖªÊ¶½â³öÖØÁ¦¼ÓËٶȣ¬½áºÏÔ²ÖÜÔ˶¯ÖªÊ¶¼´¿ÉÇó½â£®
£¨2£©Óα꿨³ß¶ÁÊýΪ£¨1£©ÒÔÓαêÁã¿ÌÏßλÖÃΪ׼£¬ÔÚÖ÷³ßÉ϶ÁÈ¡ÕûºÁÃ×Êý£®
                 £¨2£©¿´ÓαêÉÏÄÄÌõ¿ÌÏßÓëÖ÷³ßÉϵÄijһ¿ÌÏߣ¨²»ÓùÜÊǵڼ¸Ìõ¿ÌÏߣ©¶ÔÆ룬ÓÉÓαêÉ϶Á³öºÁÃ×ÒÔϵÄСÊý£® 
                 £¨3£©×ܵĶÁÊýΪºÁÃ×ÕûÊý¼ÓÉϺÁÃ×СÊý£®
£¨3£©¢ÙƽºâĦ²ÁÁ¦Ê±²»Á¬½ÓíÀÂëÅÌ£¬Ã¿´Î¸Ä±äС³µÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦£¬ÏȽÓͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¬ÔÙ·Å¿ªÐ¡³µ£®
¢ÚûÓÐƽºâĦ²ÁÁ¦»òƽºâ²»×ã
£¨4£©¢Ù¸ù¾ÝʵÑéµÄ°²È«ÐԺͱãÓÚ²Ù×÷¶¨Öµµç×èÑ¡¢Û£¬»¬¶¯±ä×èÆ÷Ñ¡¢Þ£»
¢Û´ý²âµçÁ÷±íÁ½¶ËµÄµçѹԼΪ1.5V£¬¶¨Öµµç×èÖеçÁ÷Ϊ¼¸ºÁ°²£¬ËùÒÔ¶¨Öµµç×èÑ¡R1£¬µç·Éè¼ÆΪ·Öѹµç·£¬»¬¶¯±ä×èÆ÷ѡСµÄ±ãÓÚ²Ù×÷£¬Ñ¡R4£¬
½â´ð£º½â£º£¨1£©¸ù¾ÝÔȱäËÙÔ˶¯µÄ¹æÂɿɵ㬸ÃÐÇÇò±íÃæµÄÖØÁ¦¼ÓËÙ¶ÈΪg=
2v
t
£¬¸ÃÐÇÇòµÄµÚÒ»ÓîÖæËٶȣ¬¼´ÎªÎÀÐÇÔÚÆä±íÃ渽½üÈÆËü×öÔÈËÙÔ²ÖÜÔ˶¯µÄÏßËٶȣ¬¸ÃÐÇÇò¶ÔÎÀÐǵÄÒýÁ¦£¨ÖØÁ¦£©ÌṩÎÀÐÇ×öÔ²ÖÜÔ˶¯µÄÏòÐÄÁ¦£®
Ôòmg=
mv2
R
£¬¸ÃÐÇÇò±íÃæµÄµÚÒ»ÓîÖæËÙ¶ÈΪv=
gR
=
2vR
t
£®
£¨2£©Óα꿨³ßµÄ¶ÁÊýΪ£ºÖ÷³ß+Óαê³ß=102mm+7¡Á0.05mm=10.235cm
Å·Ä·±íµÄ¶ÁÊýΪ£ºÊ¾Êý¡Á±¶ÂÊ=40¡Á10=400¦¸
£¨3£©¢ÙA¡¢Æ½ºâĦ²ÁÁ¦Ê±²»Á¬½ÓíÀÂëÅÌ£¬A´íÎó£»
B¡¢Ã¿´Î¸Ä±äС³µÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦£¬BÕýÈ·£»
C¡¢ÊµÑéʱ£¬ÏȽÓͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¬ÔÙ·Å¿ªÐ¡³µ£¬C´íÎó£»
D¡¢Ð¡³µÓëíÀÂëÅÌÒ»Æð¼ÓËÙÔ˶¯£¬¹«Ê½Îªmg=£¨M+m£©a£¬D´íÎó£»
¹ÊÑ¡B
¢ÚûÓÐƽºâĦ²ÁÁ¦»òƽºâ²»×㣮
£¨4£©¢Ù¸ù¾ÝʵÑéµÄ°²È«ÐԺͱãÓÚ²Ù×÷¶¨Öµµç×èÑ¡¢Û£¬»¬¶¯±ä×èÆ÷Ñ¡¢Þ£»
¢Û´ý²âµçÁ÷±íÁ½¶ËµÄµçѹԼΪ1.5V£¬¶¨Öµµç×èÖеçÁ÷Ϊ¼¸ºÁ°²£¬ËùÒÔ¶¨Öµµç×èÑ¡R1£¬µç·Éè¼ÆΪ·Öѹµç·£¬»¬¶¯±ä×èÆ÷ѡСµÄ±ãÓÚ²Ù×÷£¬Ñ¡R4£¬
ÓÉ·ÖѹԭÀí£¬I1r1=£¨I2-I1£©R1£¬ÓÉͼÏóÖªI2-I1ͼÏóµÄЧÂÊK=
r1+R1
R1

ÁªÁ¢½âµÃ£ºr1=£¨K-1£©R1
´ð°¸Îª£º
2vR
t
£¬10.235£¬400£¬B£¬Ã»ÓÐƽºâĦ²ÁÁ¦»òƽºâ²»×㣬¢Û£¬¢Þ£¬£¨K-1£©R1
µãÆÀ£º±¾Ì⿼²éµÄ֪ʶµã±È½Ï¶à£¬×öµÄʱºòÓ¦¸ÃÄÍÐÄϸÖ£¬µÚÒ»Ì⿼²éÁËÓîÖæµÚÒ»Ëٶȣ¬µÚ¶þÌ⿼²éÁËÒÇÆ÷µÄ¶ÁÊý£¬¶ÔʵÑéÒªÖªµÀʵÑéµÄÔ­Àí¼°²½Ö裮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚijÐÐÐDZíÃæÒÔ²»Ì«´óµÄ³õËÙ¶Èv0ÊúÖ±ÏòÉÏÅ׳öһСÇò£¬²âµÃСÇòËùÄÜÉÏÉýµÄ×î´ó¸ß¶ÈΪh£¬ÓÉ´Ë¿ÉÒÔ¼ÆËã³ö£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

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

£¨1£©Ä³ÈËÔÚijÐÐÐDZíÃæÒÔËÙÂÊvÊúÖ±ÉÏÅ×Ò»ÎïÌ壬¾­Ê±¼ätÂä»ØÊÖÖУ¬ÒÑÖª¸ÃÐÐÐǵİ뾶ΪR£¬ÔòÄÜÔÚÕâ¸öÐÐÐDZíÃ渽½üÈƸÃÐÐÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÎÀÐÇËù¾ßÓеÄËÙÂÊΪ______
£¨2£©Óα꿨³ß¶ÁÊýÊÇ______cm£¬
µ±ÕýȷʹÓöàÓõç±í²âÁ¿ÎïÀíÁ¿Ê±£¬¶àÓõç±í±íÅÌʾÊýÈçͼ1Ëù³Ð£®´ËʱѡÔñ¿ª¹Ø¶Ô×¼¡Á10¦¸µµ£¬Ôò±»²âµç×èµÄ×èֵΪ______¦¸£®
£¨3£©¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿£¬ÎïÌåÊÜÁ¦¹Øϵ¡±µÄʵÑé×°ÖÃÈçͼ2Ëùʾ£¬
¢ÙʵÑéµÄÑо¿¶ÔÏóÊÇС³µ£¬µ±×÷ÓÃÁ¦Ò»¶¨Ê±£¨Ðü¹ÒµÄíÀÂëÅ̺ÍÅÌÄÚµÄíÀÂëÖØÁ¦²»±ä£©£¬Ì½¾¿¼ÓËÙ¶ÈÓëÖÊÁ¿µÄ¹Øϵʱ£¬ÒÔÏÂ˵·¨ÖÐÕýÈ·µÄÊÇ______
A£®Æ½ºâĦ²ÁÁ¦Ê±£¬Ó¦½«íÀÂëÅÌÓÃϸÉþͨ¹ý¶¨»¬ÂÖϵÔÚС³µÉÏ
B£®Ã¿´Î¸Ä±äС³µÖÊÁ¿Ê±£¬²»ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
C£®ÊµÑéʱ£¬ÏÈ·Å¿ªÐ¡³µ£¬ÔÙ½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´
D£®Ð¡³µÔ˶¯µÄ¼ÓËٶȿÉÓÃÌìƽ²â³öС³µµÄÖÊÁ¿MºÍíÀÂëÅ̼°ÅÌÄÚíÀÂëµÄÖÊÁ¿mºó£¬Ö±½ÓÓù«Ê½a=
m
M
g
Çó³ö£®
¢ÚÈçͼ3ËùʾΪijͬѧ¸ù¾Ý²âÁ¿Êý¾Ý×÷³öµÄa-FͼÏó£¬ËµÃ÷ʵÑé´æÔÚµÄÎÊÌâÊÇ______
£¨4£©Êµ¼ÊµçÁ÷±íÓÐÄÚ×裬¿ÉµÈЧΪÀíÏëµçÁ÷±íÓëµç×èµÄ´®Áª£®²âÁ¿Êµ¼ÊµçÁ÷±íG1ÄÚ×èr1µÄµç·Èçͼ4Ëùʾ£®¹©Ñ¡ÔñµÄÒÇÆ÷ÈçÏ£º
¢Ù´ý²âµçÁ÷±íG1£¨0¡«5mA£¬ÄÚ×èÔ¼300¦¸£©£»
¢ÚµçÁ÷±íG2£¨0¡«10mA£¬ÄÚ×èÔ¼l00¦¸£©£»
¢Û¶¨Öµµç×èR1£¨300¦¸£©£»
¢Ü¶¨Öµµç×èR2£¨10¦¸£©£»£®
¢Ý»¬¶¯±ä×èÆ÷R3£¨0¡«1000¦¸£©£»
¢Þ»¬¶¯±ä×èÆ÷R4£¨0¡«20¦¸£©£»
¢ß¸Éµç³Ø£¨1.5V£©£»
¢àµç¼üS¼°µ¼ÏßÈô¸É£®
£¨1£©¶¨Öµµç×èӦѡ______£¬»¬¶¯±ä×èÆ÷Ӧѡ______£®£¨ÔÚ¿Õ¸ñÄÚÌîдÐòºÅ£©
£¨2£©ÓÃÁ¬ÏßÁ¬½ÓʵÎïͼ£®
£¨3£©±ÕºÏµç¼üS£¬¶à´ÎÒƶ¯»¬¶¯´¥Í·£¬¼Ç¼¶à×éG1¡¢G2µÄ¶ÁÊýI1¡¢I2£¬ÒÔI2Ϊ×Ý×ø±ê£¬I1Ϊºá×ø±ê£¬×÷³öÏàӦͼÏߣ¬Èçͼ5Ëùʾ£®¸ù¾ÝI2-I1ͼÏßµÄбÂÊk¼°¶¨Öµµç×裬д³ö´ý²âµçÁ÷±íÄÚ×èµÄ±í´ïʽ______£®

¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2003Äê¹ã¶«Ê¡Ö麣Êи߿¼ÎïÀíÄ£ÄâÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÔÚijÐÐÐDZíÃæÒÔ²»Ì«´óµÄ³õËÙ¶ÈvÊúÖ±ÏòÉÏÅ׳öһСÇò£¬²âµÃСÇòËùÄÜÉÏÉýµÄ×î´ó¸ß¶ÈΪh£¬ÓÉ´Ë¿ÉÒÔ¼ÆËã³ö£¨ £©
A£®¸ÃÐÐÐǵÄÖÊÁ¿
B£®¸ÃÐÐÐÇÉÏÃë°ÚµÄ°Ú³¤
C£®¸ÃÐÐÐǵĵÚÒ»ÓîÖæËÙ¶È
D£®ÈƸÃÐÐÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÎÀÐǵÄ×î´ó¼ÓËÙ¶È

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012ÄêÌì½òÊкÍƽÇøÒ«»ªÖÐѧ¸ß¿¼ÎïÀí¶þÄ£ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

£¨1£©Ä³ÈËÔÚijÐÐÐDZíÃæÒÔËÙÂÊvÊúÖ±ÉÏÅ×Ò»ÎïÌ壬¾­Ê±¼ätÂä»ØÊÖÖУ¬ÒÑÖª¸ÃÐÐÐǵİ뾶ΪR£¬ÔòÄÜÔÚÕâ¸öÐÐÐDZíÃ渽½üÈƸÃÐÐÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÎÀÐÇËù¾ßÓеÄËÙÂÊΪ______

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸