×öÔȱäËÙÖ±ÏßÔ˶¯µÄС³µ´ø¶¯Ö½´øͨ¹ý´òµã¼ÆʱÆ÷£¬´ò³öµÄ²¿·Ö¼ÆÊýµãÈçͼËùʾ£®Ã¿ÏàÁÚÁ½µã¼ä»¹ÓÐËĸöµãδ»­³öÀ´£¬´òµã¼ÆʱÆ÷ʹÓõÄÊÇ50HzµÄµÍѹ½»Á÷µçÔ´£¬Çó£º

£¨1£©¢Ù´òµã¼ÆʱÆ÷´òµã¡°2¡±Ê±£¬Ð¡³µµÄËÙ¶ÈΪ
0.490
0.490
m/s£»
¢ÚС³µÔÚ3¡«6µãÖ®¼äµÄƽ¾ùËÙ¶ÈΪ
0.710
0.710
m/s£» £¨±£ÁôÈýλÓÐЧÊý×Ö£©
£¨2£©Óôòµã¼ÆʱÆ÷Ñо¿ÎïÌåÔ˶¯Ê±£¬½ÓͨµçÔ´ºÍÈÃÖ½´øËæÎïÌ忪ʼÔ˶¯£¬ÕâÁ½¸ö²Ù×÷µÄʱ¼ä¹ØϵӦµ±ÊÇ
A
A

A£®ÏȽÓͨµçÔ´£¬ºóÊÍ·ÅÖ½´øB£®ÏÈÊÍ·ÅÖ½´ø£¬ºó½ÓͨµçÔ´
C£®ÊÍ·ÅÖ½´øµÄͬʱ½ÓͨµçÔ´D£®ÏÈÊÍ·ÅÖ½´ø»òÏȽÓͨµçÔ´¶¼¿ÉÒÔ£®
·ÖÎö£º£¨1£©¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯ÖÐʱ¼äÖеãµÄËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȣ¬¿ÉÒÔÇó³ö´òÖ½´øÉÏ2µãʱС³µµÄ˲ʱËٶȴóС£®¸ù¾Ýƽ¾ùËٶȵĶ¨ÒåÇó½âÔÚ3¡«6µãÖ®¼äµÄƽ¾ùËٶȣ®
£¨2£©ÎªÔö¼ÓÓÐЧµãµÄ¸öÊý£¬ÊµÑéÖÐÓ¦ÏȽÓͨµçÔ´£¬ºóÈÃС³µÔ˶¯£®
½â´ð£º½â£º£¨1£©ÔȱäËÙÖ±ÏßÔ˶¯ÖУ¬Ê±¼äÖеãµÄËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȣ¬¹Ê£º
v2=
x1+x2
2T
=
(4.47+5.34)¡Á0.01
2¡Á0.1
=0.4905m/s¡Ö0.490m/s
ÔÚ3¡«6µãÖ®¼äµÄƽ¾ùËÙ¶ÈΪ£º
.
v
 
=
x3+x4+x5
3T
=
(6.21+7.10+8.00)
3¡Á0.1
¡Ö0.710m/s
£¨2£©ÓÉÓÚÈ˵ķ´Ó¦Ê±¼äÓÐ0.1s×óÓÒ£¬¹ÊΪÌá¸ß´ò³öµÄÓÐЧµãµÄ¸öÊý£¬Ó¦¸ÃÏȽÓͨµçÔ´£¬´ý´òµãÎȶ¨ºóÔÙ½ÓͨµçÔ´£»
¹Ê´ð°¸Îª£º
£¨1£©0.490£¬0.710£»
£¨2£©A£®
µãÆÀ£º±¾Ìâ¹Ø¼üÊÇÃ÷È·Ö½´ø´¦ÀíÖÐÇó½â˲ʱËٶȵķ½·¨£¬¼´¡°±äËÙÖ±ÏßÔ˶¯ÖУ¬Ê±¼äÖеãµÄËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȡ±£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Ò»¸ö×öÔȱäËÙÖ±ÏßÔ˶¯µÄÎïÌ壬Æä¼ÓËٶȴóСΪ0.6m/s2£®´ËÎïÌåÔÚÈÎÒâ1sÄڵģ¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

ʵÑéÌâ
ÔÚ¡°Ñé֤ţ¶ÙÔ˶¯¶¨ÂÉ¡±µÄʵÑéÖУ¬²ÉÓÃÈçͼ1ËùʾµÄʵÑé×°Öã®
С³µ¼°³µÖÐíÀÂëµÄÖÊÁ¿ÓÃM±íʾ£¬Å̼°ÅÌÖÐíÀÂëµÄÖÊÁ¿ÓÃm±íʾ£¬Ð¡³µµÄ¼ÓËٶȿÉÓÉС³µºóÍ϶¯µÄÖ½´ø´òÉϵĵã¼ÆËã³ö£®
£¨1£©µ±MÓëmµÄ´óС¹ØϵÂú×ã
MÔ¶´óÓÚm
MÔ¶´óÓÚm
ʱ£¬²Å¿ÉÒÔÈÏΪÉþ¶ÔС³µµÄÀ­Á¦´óСµÈÓÚÅ̼°ÅÌÖÐíÀÂëµÄÖØÁ¦£®
£¨2£©Ò»×éͬѧÔÚ×ö¼ÓËÙ¶ÈÓëÖÊÁ¿µÄ¹ØϵʵÑéʱ£¬±£³ÖÅ̼°ÅÌÖÐíÀÂëµÄÖÊÁ¿Ò»¶¨£¬¸Ä±äС³µ¼°³µÖÐíÀÂëµÄÖÊÁ¿£¬²â³öÏàÓ¦µÄ¼ÓËٶȣ¬²ÉÓÃͼÏó·¨´¦ÀíÊý¾Ý£®ÎªÁ˱ȽÏÈÝÒ׵ؼì²é³ö¼ÓËÙ¶ÈaÓëÖÊÁ¿MµÄ¹Øϵ£¬Ó¦¸Ã×÷aÓë
1
M
1
M
µÄͼÏó£®
£¨3£©Èçͼ2ËùʾΪ¼×ͬѧ¸ù¾Ý²âÁ¿Êý¾Ý×÷³öµÄa-FͼÏߣ¬ËµÃ÷ʵÑé´æÔÚµÄÎÊÌâÊÇ
ûÓÐƽºâĦ²ÁÁ¦»òƽºâʱ½Ç¶È¹ýС£®
ûÓÐƽºâĦ²ÁÁ¦»òƽºâʱ½Ç¶È¹ýС£®
£®
£¨4£©Ä³Í¬Ñ§ÔÚ×ö¼ÓËٶȺÍÁ¦¡¢ÖÊÁ¿µÄ¹ØϵµÄʵÑéÖУ¬²âµÃС³µµÄ¼ÓËÙ¶ÈaºÍÀ­Á¦FµÄÊý¾ÝÈçϱíËùʾ£º
F
N
0.20 0.30 0.40 0.50 0.60
a/£¨m?s-2£© 0.11 0.19 0.29 0.40 0.51
Çë¸ù¾Ý±íÖеÄÊý¾ÝÔÚ×ø±êÖ½ÖÐ×÷³öa-FͼÏó£¨Í¼3£©£»
£¨5£©Í¼ÏóµÄбÂʵÄÎïÀíÒâÒåÊÇ
С³µµÄ×ÜÖÊÁ¿µÄµ¹Êý
С³µµÄ×ÜÖÊÁ¿µÄµ¹Êý
£»
£¨6£©ÔÚ¡°Ì½¾¿Á½¸ö¹²µãÁ¦µÄºÏ³É¡±ÊµÑéÖУ¬Ä³Ð¡×é×öʵÑéʱµÃ³öÈçͼ4ËùʾµÄͼ£¨OΪÏðƤÌõÓëϸÉþÌ׵Ľáµã£©£®Í¼ÖÐ
F
F
ÊÇF1ÓëF2ºÏÁ¦µÄʵÑéÖµ£¬ÎªÊ¹ÏðƤ½îÑØÊúÖ±·½ÏòÉ쳤£¬ÄÇô»¥³É½Ç¶ÈµÄÁ½µ¯»É³ÓËùÊ©µÄÁ¦F1ºÍF2±ØÐë
C
C
£®
A£®µÈ´ó  B£®»¥Ïà´¹Ö±  C£®Ë®Æ½·ÖÁ¦£¬µÈ´ó·´Ïò  D£®ÊúÖ±·ÖÁ¦µÈ´ó
£¨7£©×öÔȱäËÙÖ±ÏßÔ˶¯µÄС³µ´ø¶¯Ö½´øͨ¹ýµç»ð»¨¼ÆʱÆ÷£¬´ò³öµÄ²¿·Ö¼ÆÊýµãÈçͼ5Ëùʾ£®Ã¿ÏàÁÚÁ½µã¼ä»¹ÓÐËĵãδ»­³öÀ´£¬µç»ð»¨¼ÆʱÆ÷ʹÓõÄÊÇ220V¡¢T=0.02sµÄ½»Á÷µç£¬Ç󣺵ç»ð»¨¼ÆʱÆ÷´òµÚ2¸ö¼ÆÊýµãʱ£¬Ð¡³µµÄËÙ¶Èv2=
0.49
0.49
m/s£¬Ð¡³µµÄ¼ÓËÙ¶Èa=
0.88
0.88
m/s2£®£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©ÔÚDISϵͳÖУ¬¹âµçÃŲâÁ¿µÄÊÇÔ˶¯ÎïÌåµ²¹âʱ¼äÄÚµÄƽ¾ùËٶȣ¬ÒòΪµ²¹âƬ½ÏÕ­£¬ËùÒÔ¿É¿´×÷²âÁ¿µÄÊÇ˲ʱËٶȣ®ÎªÁ˲âÁ¿×öÔȱäËÙÖ±ÏßÔ˶¯µÄС³µµÄ¼ÓËٶȣ¬½«¿í¶È¾ùΪbµÄµ²¹âƬA¡¢B¹Ì¶¨ÔÚС³µÉÏ£¬Èçͼ1Ëùʾ£®µ±Ð¡³µ×öÔȱäËÙÔ˶¯¾­¹ý¹âµçÃÅʱ£¬²âµÃA¡¢BÏȺ󵲹âµÄʱ¼ä·Ö±ðΪ¡÷tAºÍ¡÷tB£¬A¡¢B¿ªÊ¼µ²¹âʱ¿ÌµÄ¼ä¸ôΪt£¬ÔòA¡¢BÏȺ󾭹ý¹âµçÃÅʱµÄËٶȷֱðΪ
b
¡÷t1
b
¡÷t1
£¬
b
¡÷t2
b
¡÷t2
£»Ð¡³µµÄ¼ÓËÙ¶Èa=
b
t
£¨
1
¡÷t2
-
1
¡÷t1
£©
b
t
£¨
1
¡÷t2
-
1
¡÷t1
£©
£®
£¨2£©Èçͼ2ËùʾΪÓôòµã¼ÆʱÆ÷Ñо¿Ð¡³µÔ˶¯Çé¿öµÄ×°ÖãºÊµÑéʱÓɾ²Ö¹ÊͷŹ³Â룬С³µ¿ªÊ¼×öÔȼÓËÙÖ±ÏßÔ˶¯£¬ÔÚС³µ½øÈë²¼ÃæÇ°¹³ÂëÒѾ­ÂäµØÁË£¬Ð¡³µÔÚƽ²£Á§°åÉÏ×öÔÈËÙÖ±ÏßÔ˶¯£¬ºóÀ´ÔÚ²¼ÃæÉÏ×öÔȼõËÙÖ±ÏßÔ˶¯£¬Ëù´ò³öµÄÖ½´øµÄÒ»²¿·ÖÈçͼËùʾ£¬Ö½´øÉÏÏàÁÚÁ½µã¶ÔÓ¦µÄʱ¼ä¼ä¸ôΪT=0.02s£¬ÊÔ·ÖÎö£º£¨ÒÔϽá¹û¾ù±£ÁôÈýλÓÐЧÊý×Ö£©
¢ÙÓÉͼ3¿ÉÖª£¬Ð¡³µÔÚ²£Á§°åÉÏ×öÔÈËÙÔ˶¯µÄËٶȴóСΪv=
1.70
1.70
m/s£»´òµã¼ÆʱÆ÷´òϼÆÊýµãDʱС³µµÄ˲ʱËÙ¶ÈvD=
1.50
1.50
m/s£®
¢Ú¸ù¾ÝÖ½´øµÃµ½ÁËÈçͼ4ËùʾµÄv-tͼÏó£¬ÔòС³µ×öÔȼõËÙÖ±ÏßÔ˶¯Ê±µÄ¼ÓËÙ¶ÈΪa=
3.00
3.00
m/s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©Ä³Í¬Ñ§ÀûÓôòµã¼ÆʱÆ÷²âÁ¿Ð¡³µ×öÔȱäËÙÖ±ÏßÔ˶¯µÄ¼ÓËٶȣ®
¢Ùµç´Å´òµã¼ÆʱÆ÷ÊÇÒ»ÖÖʹÓÃ
 
£¨Ìî¡°½»Á÷¡±»ò¡°Ö±Á÷¡±£©µçÔ´µÄ¼ÆʱÒÇÆ÷£¬ËüµÄ¹¤×÷µçѹÊÇ4-6V£¬µ±µçÔ´µÄƵÂÊΪ50Hzʱ£¬Ëüÿ¸ô
 
s´òÒ»´Îµã£®
¢ÚʹÓôòµã¼ÆʱÆ÷ʱ£¬½ÓͨµçÔ´ÓëÈÃÖ½´øËæС³µ¿ªÊ¼Ô˶¯ÕâÁ½¸ö²Ù×÷¹ý³ÌµÄ²Ù×÷˳Ðò£¬Ó¦¸ÃÊÇ
 

A£®ÏȽÓͨµçÔ´£¬ºóÊÍ·ÅÖ½´ø        B£®ÏÈÊÍ·ÅÖ½´ø£¬ºó½ÓͨµçÔ´
C£®ÊÍ·ÅÖ½´øµÄͬʱ½ÓͨµçÔ´        D£®ÄĸöÏÈ£¬Äĸöºó¶¼¿ÉÒÔ
¢ÛʵÑéÖиÃͬѧ´Ó´ò³öµÄÈô¸ÉÖ½´øÖÐÑ¡È¡Ò»ÌõÖ½´ø£¬Èçͼ1Ëùʾ£¬Ö½´øÉÏ°´Ê±¼ä˳ÐòȡΪA¡¢B¡¢C¡¢DËĸö¼ÆÊýµã£¬Ã¿Á½¸öµãÖ®¼ä»¹ÓÐËĸöµãδ»­³ö£®Óóß×Ó²âµÃ¸÷µãµÄ¾àÀëΪs1=3.62cm£¬s2=4.75cm£¬s3=5.88cm£®
¸ù¾ÝÖ½´øÊý¾Ý¿ÉÒÔÅжÏС³µÔÚ×öÔȼÓËÙÖ±ÏßÔ˶¯£¬ÀíÓÉÊÇ
 
£¨ÇëÓÃÎÄ×ÖÃèÊö£©£»ÔÚ¼ÇÊýµãCËù´ú±íµÄʱ¿Ì£¬Ö½´øÔ˶¯µÄ˲ʱËÙ¶ÈÊÇ
 
m/s£»Ð¡³µµÄ¼ÓËÙ¶ÈÊÇ
 
m/s2£®£¨ÒÔÉÏÁ½¿ÕСÊýµãºó±£ÁôÁ½Î»Êý×Ö£©¾«Ó¢¼Ò½ÌÍø
£¨2£©Ä³ÎïÀíÐËȤС×éµÄͬѧÀûÓÃʵÑé̽¾¿µç³ØµÄµç¶¯ÊƺÍÄÚ×裬ʵÑéµÄÖ÷Òª²Ù×÷ÈçÏ£º
¢ÙÏÈÓõçѹ±íÖ±½Ó½ÓÔÚµç³ØÁ½¼«´Ö²âµç³ØµÄµç¶¯ÊÆ£¬ÕâÑù²â³öµÄµç¶¯ÊƱÈÕæʵֵ
 
£¨Ñ¡Ìî¡°Æ«´ó¡±»ò¡°Æ«Ð¡¡±£©£®
¢ÚÈô°´Í¼£¨¼×£©Ëùʾ½ÓºÃµç·½øÐÐʵÑ飬¼Çϵç×èÏäºÍµçѹ±í¶ÔÓ¦µÄһϵÁжÁÊýR¡¢U£¬²¢½«Êý¾Ý¼Ç¼ÔÚϱíÖУ®µÚ2´ÎʵÑéÖУ¬µç×èÏäµÄʾÊýÈçͼ£¨ÒÒ£©Ëùʾ£¬´Ëʱµç×èÏä½ÓÈëµç·µÄµç×èÊÇ
 
¦¸
ʵÑé´ÎÊý 1 2 3 4 5 6
1
U
/£¨V-1£©
0.80 1.07 1.30 1.47 1.80 2.27
1
R
/£¨¦¸-1£©
0.2
 
0.8 1.0 1.5 2.0
¢Ûͼ£¨±û£©ÊǸù¾ÝÉϱíÖеÄÊý¾Ý£¬ÔÚ×ø±êÖ½ÉÏ»­³öµÄ
1
U
-
1
R
ͼÏó£®ÈôºöÂÔµçѹ±íÄÚ×èµÄÓ°Ï죬µ±µç×èÏä¡¢µçѹ±íµÄʾÊý·Ö±ðÊÇR¡¢Uʱ£¬µç³Øµç¶¯ÊÆE=
 
£¨ÓÃU¡¢R¡¢r±íʾ£©£»Éè
1
U
-
1
R
ͼÏó×ÝÖá½Ø¾àΪA£¬ÔòAÓëµç³Øµç¶¯ÊÆEµÄº¯Êý¹ØϵʽÊÇ
 
£¬¸ÃͼÏóµÄбÂÊKÓëE¡¢rÖ®¼äµÄº¯Êý¹ØϵʽÊÇ
 
£»
¢Ü¸ù¾ÝͼÏó¿ÉÖª£ºµç³ØµÄµç¶¯ÊÆE=
 
V£¬ÄÚ×èr=
 
¦¸£®£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓôòµã¼ÆʱÆ÷²âÁ¿Ð¡³µ×öÔȱäËÙÖ±ÏßÔ˶¯µÄ¼ÓËٶȣ®
£¨1£©µç´Å´òµã¼ÆʱÆ÷ÊÇÒ»ÖÖʹÓÃ
½»Á÷
½»Á÷
£¨Ìî¡°½»Á÷¡±»ò¡°Ö±Á÷¡±£©µçÔ´µÄ¼ÆʱÒÇÆ÷£¬ËüµÄ¹¤×÷µçѹÊÇ4-6V£®
£¨2£©ÊµÑéÖиÃͬѧ´Ó´ò³öµÄÈô¸ÉÖ½´øÖÐÑ¡È¡Ò»ÌõÖ½´ø£¬ÈçͼËùʾ£¬Ö½´øÉÏ°´Ê±¼ä˳ÐòȡΪ0¡¢1¡¢2¡¢3Ëĸö¼ÆÊýµã£¬Ã¿Á½¸öµãÖ®¼ä»¹ÓÐËĸöµãδ»­³ö£®Óóß×Ó²âµÃ¸÷¼ÆÊýµãÓë0¼ÆÊýµãÖ®¼äµÄ¾àÀëÒÀ´ÎΪd1=3cm£¬d2=7.5cm£¬d3=13.5cm£¬¸ù¾ÝÖ½´øÊý¾Ý¿ÉÒÔÇó³ö¼ÇÊýµã2Ëù´ú±íµÄʱ¿Ì£¬Ö½´øÔ˶¯µÄ˲ʱËÙ¶ÈÊÇ
0.53
0.53
m/s£»Ð¡³µµÄ¼ÓËÙ¶ÈÊÇ
1.5
1.5
m/s2£®£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
£¨3£©ÈôµçԴƵÂʵÍÓÚ50ºÕ×Èʱ£¬ÈÔ°´ÏàÁÚÁ½¸ö¼ÆÊýµãʱ¼ä¼ä¸ôΪ0.10s¼ÆË㣬Ôò²â³öС³µµÄ¼ÓËÙ¶È
Æ«´ó
Æ«´ó
£¨Ñ¡Ìî¡°Æ«´ó¡±¡¢¡°²»±ä¡±»ò¡°Æ«Ð¡¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸