£¨1£©´òµã¼ÆʱÆ÷ÊÇÖÐѧÎïÀíÖг£ÓõÄʵÑéÆ÷²Ä£¬³£¼ûµÄÓеç´Å´òµã¼ÆʱÆ÷ºÍµç»ð»¨¼ÆʱÆ÷Á½ÖÖ£®¹ØÓÚµç´Å´òµã¼ÆʱÆ÷ºÍµç»ð»¨¼ÆʱÆ÷µÄ±È½Ï£¬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ______
A£®µç´Å´òµã¼ÆʱÆ÷ʹÓý»Á÷µçÔ´£¬µç»ð»¨¼ÆʱÆ÷ʹÓÃÖ±Á÷µçÔ´
B£®ËüÃǶ¼ÊÇʹÓÃ10VÒÔϵĽ»Á÷µçÔ´
C£®µ±µçԴƵÂÊΪ50HZʱ£¬ËüÃǶ¼ÊÇÿ¸ô0.02s´òÒ»¸öµã
D£®µç»ð»¨¼ÆʱÆ÷¹¤×÷ʱ£¬Ö½´øÔ˶¯Êܵ½µÄ×èÁ¦½ÏС£¬ËùÒÔʵÑéÎó²îÒ²½ÏС
£¨2£©ÔÚÑо¿ÔȱäËÙÖ±ÏßÔ˶¯µÄʵÑéÖУ¬Ð¡³µÍÏ×ÅÖ½´øͨ¹ý¼ÆʱÆ÷¼Ç¼ÏµÄÔ˶¯Çé¿öÈçͼËùʾ£¬Í¼ÖÐO¡¢A¡¢B¡¢C¡¢D¡¢EΪÁ¬ÐøÑ¡¶¨µÄ¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôÊÇ0.10s£¬±ê³öµÄÊý¾Ýµ¥Î»ÊÇÀåÃ×£¬ÔòÔÚ´òCµãʱС³µµÄËÙ¶ÈÊÇ______m/s£¬Ð¡³µÔ˶¯µÄ¼ÓËÙ¶ÈÊÇ______m/s2£®

½â£º£¨1£©µç´Å´òµã¼ÆʱÆ÷ºÍµç»ð»¨´òµã¼ÆʱÆ÷¶¼ÊÇʹÓý»Á÷µçÔ´µÄ¼ÆʱÒÇÆ÷£¬µç´Å´òµã¼ÆʱÆ÷¹¤×÷µçѹ4V¡«6V£¬µç»ð»¨´òµã¼ÆʱÆ÷µÄµçѹÊÇ220V£¬µ±µçÔ´µÄƵÂÊΪ50Hzʱ£¬Ëüÿ¸ô0.02s´òÒ»´Îµã£¬ÆäÖеç»ð»¨¼ÆʱÆ÷¹¤×÷ʱ£¬Ö½´øÔ˶¯Êܵ½µÄ×èÁ¦½ÏС£¬Îó²î½ÏС£¬¹ÊAB´íÎó£¬CDÕýÈ·£®
¹ÊÑ¡CD
£¨2£©¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂ۵ãº
vC==1.28m/s
ÉèÁ½µãÖ®¼äΪλÒÆ·Ö±ðΪ£ºs1¡¢s2¡¢s3¡¢s4¡¢s5£¬
Ôòs1=0.048m£¬s2=0.080m£¬s3=0.112m£¬s4=0.144m£¬s5=0.176m
¸ù¾ÝÖð²î·¨µÃ£º
a==3.2m/s2
¹Ê´ð°¸Îª£º£¨1£©CD £¨2£©1.28 3.2
·ÖÎö£º½â¾öʵÑéÎÊÌâÊ×ÏÈÒªÕÆÎÕ¸ÃʵÑéÔ­Àí£¬Á˽âʵÑéµÄÒÇÆ÷¡¢²Ù×÷²½ÖèºÍÊý¾Ý´¦ÀíÒÔ¼°×¢ÒâÊÂÏ¸ù¾Ýƽ¾ùËٶȴúÌæ˲ʱËÙ¶ÈÇóCµãËٶȣ¬¸ù¾ÝÖð²î·¨¿ÉÒÔËã³öС³µµÄ¼ÓËٶȣ®
µãÆÀ£º¶ÔÓÚʵÑé×°Öú͹¤×÷Ô­Àí£¬ÎÒÃDz»½ö´ÓÀíÂÛÉÏѧϰËü£¬»¹ÓôÓʵ¼ùÉÏÈ¥Á˽âËü£¬×Ô¼º¶¯ÊÖÈ¥×ö×ö£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¡°Ì½¾¿¼ÓËÙ¶ÈÓëÎïÌåÖÊÁ¿¡¢ÎïÌåÊÜÁ¦µÄ¹Øϵ¡±µÄʵÑé×°ÖÃÈçͼ1Ëùʾ£®

£¨1£©´òµã¼ÆʱÆ÷ÊÇÒ»ÖÖ¼ÆʱÒÇÆ÷£¬ÆäµçԴƵÂÊΪ50Hz£¬³£Óõĵç´Åʽ´òµã¼ÆʱÆ÷ºÍµç»ð»¨¼ÆʱÆ÷£¬Ê¹ÓõĶ¼ÊÇ
½»Á÷µç
½»Á÷µç
£¨Ìî¡°Ö±Á÷µç¡±»ò¡°½»Á÷µç¡±£©£¬ËüÃÇÊÇÿ¸ô
0.02
0.02
s´òÒ»¸öµã£®

£¨2£©Ä³Í¬Ñ§ÔÚʵÑéÖУ®´ò³öµÄÒ»ÌõÖ½´øÈçͼ2Ëùʾ£¬ËûÑ¡ÔñÁ˼¸¸ö¼Æʱµã×÷Ϊ¼ÆÊýµã£¬ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö¼ÆʱµãûÓбê³ö£¬ÆäÖÐs1=7.06cm¡¢s2=7.68cm¡¢s3=8.30cm¡¢s4=8.92cm£¬ÄÇô´òbµãµÄ˲ʱËٶȴóСÊÇ
0.74
0.74
m/s£»Ö½´ø¼ÓËٶȵĴóСÊÇ
0.62
0.62
m/s2£¨¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®
£¨3£©Ä³Í¬Ñ§½«³¤Ä¾°åÓÒ¶ËÊʵ±µæ¸ß£¬ÒÔƽºâĦ²ÁÁ¦£®µ«Ëû°Ñ³¤Ä¾°åµÄÓҶ˵æµÃ¹ý¸ß£¬Ê¹µÃÇã½Ç¹ý´ó£®ÓÃa±íʾС³µµÄ¼ÓËٶȣ¬F±íʾϸÏß×÷ÓÃÓÚС³µµÄÀ­Á¦£®Ëû»æ³öµÄa-F¹ØϵÊÇ
C
C

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©´òµã¼ÆʱÆ÷ÊÇʵÑéÊÒ³£¼ûµÄÒÇÆ÷£®ÇëÔÚ¿Õ¸ñ´¦Ìîд´òµã¼ÆʱÆ÷µÄÏà¹ØÄÚÈÝ£®
¢Ùµç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ
220
220
V£»
¢ÚÎÒ¹úʹÓõĽ»Á÷µçƵÂÊÊÇ50ºÕ×È£¬ËùÒÔ´òµã¼ÆʱÆ÷ÿ¸ô
0.02
0.02
Ãë´òÒ»´Îµã£¬ÓÖ³ÆΪ´òµãÖÜÆÚT£®
¢Û´òµã¼ÆʱÆ÷ͨ¹ý
Á½
Á½
¸ö½ÓÏßÖùÁ¬½ÓµçÔ´£¬ÔÚÁ¬½Óµ½µçÔ´ÉÏʱ
²»ÐèÒª
²»ÐèÒª
£¨Ìî¡°ÐèÒª¡±»ò¡°²»ÐèÒª¡±£©Çø·ÖµçÔ´µÄÕý¸º¼«£®
£¨2£©ÈçͼÊÇijλͬѧÔÚÑо¿Ð¡³µµÄÔȱäËÙÖ±ÏßÔ˶¯Ê±£¬Í¨¹ý´òµã¼ÆʱÆ÷»ñµÃµÄÒ»ÌõÖ½´ø£®Èçͼʾ£¬ÔÚËù´òµÄµãÖУ¬È¡A¡¢B¡¢C¡¢D¡¢EΪ¼ÆÊýµã£¬ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä»¹ÓÐËĸöµã£¨Î´±ê³ö£©£¬²â³ö¸÷¼ÆÊýµã¼äµÄ¾àÀë·Ö±ðÊÇs1¡¢s2¡¢s3¡¢s4£®Éè´òµã¼ÆʱÆ÷µÄ´òµãÖÜÆÚΪT£¬ÇëÍê³ÉÏÂÁÐÎÊÌ⣺

¢ÜÒÔϹØϵʽÖÐÕýÈ·µÄÊÇ
A£®s3-s1=3aT2B£®s3-s2=
1
2
aT2

C£®s4-s3=s2-s1D£®s4-s1=3£¨s2-s1£©
¢ÝС³µµÄ¼ÓËÙ¶Èa=
(s4+s3)-(s2+s1)
4T2
(s4+s3)-(s2+s1)
4T2
£¨ÓÃs1¡¢s2¡¢s3¡¢s4ºÍT±íʾ£©
¢ÞÈôÒÑÖªs1=2.00cm£¬s2=4.00cm£¬s3=6.00cm£¬s4=8.00cm£¬Çó´òÏÂBµãʱС³µµÄËÙ¶Èv=
0.30
0.30
m/s£¨±£ÁôÁ½Î»Ð¡Êý£©¢ßÄãÈÏΪ¸Ãͬѧÿ¸ôËĸöµãÈ¡Ò»¸ö¼ÆÊýµãµÄ×ö·¨£¬Óкκô¦£¿
¼ÆÊýµã¾àÀëÀ©´ó±ãÓÚ²âÁ¿£¬¼ò»¯¼ÆÊýµã¼äʱ¼ä¸ôÀë±ãÓÚ¼ÆËã
¼ÆÊýµã¾àÀëÀ©´ó±ãÓÚ²âÁ¿£¬¼ò»¯¼ÆÊýµã¼äʱ¼ä¸ôÀë±ãÓÚ¼ÆËã
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±ÊµÑéÖУ¬ÓÉ´òµã¼ÆʱÆ÷µÃµ½±íʾС³µÔ˶¯¹ý³ÌµÄÒ»ÌõÇåÎúµã¼£Ö½´ø£®Ö½´øÉÏÁ½ÏàÁÚ¼ÆÊýµãµÄʱ¼ä¼ä¸ôΪT=0.10s£¬ÆäÖÐS1=7.05cm¡¢S2=7.68cm£®
£¨1£©´òµã¼ÆʱÆ÷ÊÇÒ»ÖּǼֱÏßÔ˶¯ÎïÌåµÄλÖúÍʱ¼äµÄÒÇÆ÷£¬Ê¹ÓõÄÊÇ
½»Á÷
½»Á÷
µçÔ´£¨Ìî¡°½»Á÷¡±»ò¡°Ö±Á÷¡±£©£®
£¨2£©ÔòAµã´¦Ë²Ê±ËٶȵĴóСÊÇ
0.74
0.74
m/s£¬Ð¡³µÔ˶¯µÄ¼ÓËٶȵĴóСÊÇ
0.63
0.63
m/s2£®£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨2012?»ÝÖÝһģ£©£¨1£©´òµã¼ÆʱÆ÷ÊÇÁ¦Ñ§Öг£ÓõÄ
¼Æʱ
¼Æʱ
ÒÇÆ÷£¬ÈçͼËùʾ£¬Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±ÊµÑéÖУ¬ÓÉ´òµã¼ÆʱÆ÷µÃµ½±íʾС³µÔ˶¯¹ý³ÌµÄÒ»ÌõÇåÎúÖ½´ø£¬Ö½´øÉÏÁ½ÏàÁÚ¼ÆÊýµãµÄʱ¼ä¼ä¸ôΪT=0.10s£¬ÆäÖÐx1=7.05cm¡¢x2=7.68cm¡¢x3=8.33cm¡¢x4=8.95cm¡¢x5=9.61cm¡¢x6=10.26cm£¬ÔòAµã´¦Ë²Ê±ËٶȵĴóСÊÇ
0.86
0.86
 m/s£¬Ð¡³µÔ˶¯µÄ¼ÓËٶȼÆËã±í´ïʽΪ
a=
(x4+x5+x6)-(x1+x2+x3)
9T2
a=
(x4+x5+x6)-(x1+x2+x3)
9T2
£¬¼ÓËٶȵĴóСÊÇ
0.64
0.64
 m/s2£¨¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®

£¨2£©Ð¡Ã÷ÉèÏëÓÃÈÈÃôµç×èÖÆ×÷Ò»¸ö¡°Î¶ȼơ±£¬Îª´ËËûÐèÒªÏÈ̽¾¿¸ÃÈÈÃôµç×èµÄ×èÖµËæζȱ仯µÄ¹æÂÉ£®ÏÖÓÐÏÂÁÐÆ÷²Ä£º
´ý²âÈÈÃôµç×èR£¨Ô¼600¡«2000¦¸£©£¬Ö±Á÷ºÁ°²±í£¨Á¿³Ì6mA£¬ÄÚ×èÔ¼0.5¦¸£©£¬
Ö±Á÷µçѹ±í£¨Á¿³Ì3V£¬ÄÚ×èÔ¼1k¦¸£©£¬Ö±Á÷ºãѹµçÔ´£¨Êä³öµçѹ3V£¬ÄÚ×è²»¼Æ£©£¬
»¬¶¯±ä×èÆ÷£¨×èÖµ·¶Î§0¡«500¦¸£©£¬ÒÔ¼°Ë®Òøζȼơ¢¼ÓÈÈ×°Öᢿª¹ØºÍµ¼Ïߣ®

¢ÙӦѡÔñͼ
b
b
£¨a¡¢b£©µÄµç·̽¾¿ÈÈÃôµç×èµÄζÈÌØÐÔ£®
¢ÚÖ÷Òª²½Ö裺¢ÙÁ¬½Óµç·£¬Æô¶¯¼ÓÈÈ×°Ö㬴ýζÈÎȶ¨ÎªÄ³Ò»Î¶Èʱ£¬±ÕºÏ¿ª¹Ø£¬¼ÇÏÂ
ζȼơ¢µçÁ÷±í¡¢µçѹ±íµÄ¶ÁÊý
ζȼơ¢µçÁ÷±í¡¢µçѹ±íµÄ¶ÁÊý
£»¢Ú¸Ä±äζȣ¬¶à´ÎÖظ´²½Öè¢Ù²Ù×÷£¬µÃ³ö¶à×éÊý¾Ý£»¢Û¸ù¾ÝÊý¾Ý¼ÆËãÈÈÃôµç×è×èÖµR£¬»æÖÆRËæζÈt±ä»¯µÄͼÏߣ®£¨3£©ÏÖ½«¸ÃÈÈÃôµç×è¡¢ºãѹµçÔ´¡¢¿ª¹Ø¡¢µ¼Ïß¡¢
µçÁ÷±í
µçÁ÷±í
£¨µçѹ±í¡¢µçÁ÷±í£©Á¬½ÓÆðÀ´£¬°Ñ¸Ãµç±íµÄ¿Ì¶È¸ÄΪÏàÓ¦µÄζȿ̶ȣ¬¾ÍÖƳÉÁËÒ»¸ö¡°Î¶ȼơ±£®ÈôRËæζÈt±ä»¯µÄͼÏßÈçͼc£¬ÔòÓôˡ°Î¶ȼơ±²âµÃµÄζÈÔ½¸ß£¬¶ÔÓ¦Ô­µç±í±íÅ̵Ŀ̶ÈÖµÔ½
С
С
£¨´ó¡¢Ð¡£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄʵÑé×°ÖÃÈçͼ1Ëùʾ£®¾«Ó¢¼Ò½ÌÍø
£¨1£©´òµã¼ÆʱÆ÷ÊÇÒ»ÖÖ¼ÆʱÒÇÆ÷£¬ÆäµçԴƵÂÊΪ50Hz£¬³£Óõĵç´Åʽ´òµã¼ÆʱÆ÷ºÍµç»ð»¨¼ÆʱÆ÷£¬Ê¹ÓõĶ¼ÊÇ
 
£¨Ìî¡°Ö±Á÷µç¡±»ò¡°½»Á÷µç¡±£©£¬ËüÃÇÊÇÿ¸ô
 
s´òÒ»¸öµã£®
£¨2£©Ä³Í¬Ñ§ÔÚʵÑéÖУ®´ò³öµÄÒ»ÌõÖ½´øÈçͼ2Ëùʾ£¬ËûÑ¡ÔñÁ˼¸¸ö¼Æʱµã×÷Ϊ¼ÆÊýµã£¬ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö¼ÆʱµãûÓбê³ö£¬ÆäÖÐs1=7.06cm¡¢s2=7.68cm¡¢s3=8.30cm¡¢s4=8.92cm£¬ÄÇô´òbµãµÄ˲ʱËٶȴóСÊÇ
 
m/s£»Ö½´ø¼ÓËٶȵĴóСÊÇ
 
m/s2£¨¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®
£¨3£©±¾ÊµÑé²ÉÓõÄʵÑé·½·¨ÊÇ
 

A£®¿ØÖƱäÁ¿·¨  B£®ÀíÏëʵÑé·¨
C£®µÈЧÌæ´ú·¨  D£®ÊµÑéÍÆÀí·¨
£¨4£©Ä³Í¬Ñ§½«³¤Ä¾°åÓÒ¶ËÊʵ±µæ¸ß£¬ÆäÄ¿µÄÊÇ
 
£®µ«Ëû°Ñ³¤Ä¾°åµÄÓҶ˵æµÃ¹ý¸ß£¬Ê¹µÃÇã½Ç¹ý´ó£®ÓÃa±íʾС³µµÄ¼ÓËٶȣ¬F±íʾϸÏß×÷ÓÃÓÚС³µµÄÀ­Á¦£®Ëû»æ³öµÄa-F¹ØϵͼÏóÊÇ
 

¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸