¾«Ó¢¼Ò½ÌÍø

¢ñ£®Ä³Í¬Ñ§×ö̽¾¿¡°ºÏÁ¦µÄ¹¦ºÍÎïÌåËٶȱ仯¹Øϵ¡±µÄʵÑé×°ÖÃÈçͼ1£¬Ð¡³µÔÚÏðƤ½î×÷ÓÃϵ¯³ö£¬ÑØľ°å»¬ÐУ®ÓÃÒ»ÌõÏðƤ½îʱ¶ÔС³µ×öµÄ¹¦¼ÇΪW£¬µ±ÓÃ2Ìõ¡¢3Ìõ¡­£¬ÍêÈ«ÏàͬµÄÏðƤ½î²¢ÔÚÒ»Æð½øÐеÚ2´Î¡¢µÚ3´Î¡­ÊµÑéʱ£¬Ã¿´ÎʵÑéÖÐÏðƤ½îÉ쳤µÄ³¤¶È¶¼±£³ÖÒ»Ö£®ÊµÑéÖÐС³µ»ñµÃµÄËÙ¶ÈÓÉ´òµã¼ÆʱÆ÷Ëù´òµÄÖ½´ø²â³ö£®ÊµÑéÖÐľ°åˮƽ·ÅÖã¬Ð¡³µÔÚÏðƤ½î×÷ÓÃÏÂÔ˶¯£¬µ±Ð¡³µËÙ¶È×î´óʱ£¬¹ØÓÚÏðƤ½îËù´¦µÄ״̬ÓëС³µËùÔÚµÄλÖã¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ______
A£®ÏðƤ½îÈÔ´¦ÓÚÉ쳤״̬
B£®ÏðƤ½îÇ¡ºÃ»Ö¸´Ô­³¤
C£®Ð¡³µÇ¡ºÃÔ˶¯µ½Á½¸öÌú¶¤µÄÁ¬Ïß´¦
D£®Ð¡³µÒѳ¬¹ýÁ½¸öÌú¶¤µÄÁ¬Ïß
¢ò£®Ì½¾¿ÄÜÁ¦ÊÇÎïÀíѧÑо¿µÄÖØÒªÄÜÁ¦Ö®Ò»£¬ÓÐͬѧͨ¹ýÉè¼ÆʵÑé̽¾¿ÈÆÖáת¶¯¶ø¾ßÓеÄת¶¯¶¯ÄÜÓëÄÄЩÒòËØÓйأ®ËûÒÔÔ²ÐÎÉ°ÂÖΪÑо¿¶ÔÏó£¬Ñо¿Æäת¶¯¶¯ÄÜÓëÖÊÁ¿¡¢°ë¾¶¡¢½ÇËٶȵľßÌå¹Øϵ£®É°ÂÖÓɶ¯Á¦´ø¶¯ÔÈËÙÐýת²âµÃÆä½ÇËٶȦأ¬È»ºóÈÃÉ°ÂÖÍÑÀ붯Á¦£¬ÓÃÒ»°Ñµ¯ÐÔ³ß×ÓÓëÉ°ÂÖ½Ó´¥Ê¹É°ÂÖÂýÂýͣϣ¬Éè³ß×ÓÓëÉ°ÂÖ¼äµÄĦ²ÁÁ¦´óСºãΪ
10
¦Ð
Å££¨²»¼ÆתÖáÓëÉ°ÂÖµÄĦ²Á£©£¬·Ö±ðÈ¡²»Í¬ÖÊÁ¿¡¢²»Í¬°ë¾¶µÄÉ°ÂÖ£¬Ê¹ÆäÒÔ²»Í¬µÄ½ÇËÙ¶ÈÐýת½øÐÐʵÑ飬µÃµ½Êý¾ÝÈçϱíËùʾ£º
£¨1£©ÓÉÉÏÊöÊý¾ÝÍƵ¼³öת¶¯¶¯ÄÜEkÓëÖÊÁ¿m¡¢½ÇËٶȦء¢°ë¾¶rµÄ¹ØϵʽΪ______£¨±ÈÀýϵÊýÓÃk±íʾ£©£®
£¨2£©ÒÔÉÏʵÑéÔËÓÃÁËÎïÀíѧÖеÄÒ»¸öÖØÒªµÄʵÑé·½·¨ÊÇ______£®
°ë¾¶r/cm ÖÊÁ¿m/kg ½ÇËٶȦأ¨rad/s£© ȦÊý ת¶¯¶¯ÄÜEk/J
4 1 2 8
4 1 3 18
4 1 4 32
4 2 2 16
4 3 2 24
4 4 2 32
8 1 2 16
12 1 2 24
16 1 2 32
¢ó£®²â¶¨Ä¾¿éÓ볤ľ°åÖ®¼äµÄ¶¯Ä¦²ÁÒòÊýʱ£¬²ÉÓÃÈçͼ2ËùʾµÄ×°Öã¬Í¼Öг¤Ä¾°åˮƽ¹Ì¶¨£®
£¨1£©ÊµÑé¹ý³ÌÖУ¬µç»ð»¨¼ÆʱÆ÷½ÓÔÚƵÂÊΪ50HzµÄ½»Á÷µçÔ´ÉÏ£®µ÷Õû¶¨»¬Âָ߶ȣ¬Ê¹______£®
£¨2£©ÒÑÖªÖØÁ¦¼ÓËÙ¶ÈΪg£¬²âµÃľ¿éµÄÖÊÁ¿ÎªM£¬íÀÂëÅ̺ÍíÀÂëµÄ×ÜÖÊÁ¿Îªm£¬Ä¾¿éµÄ¼ÓËÙ¶ÈΪa£¬Ôòľ¿éÓ볤ľ°å¼ä¶¯Ä¦²ÁÒòÊý
¦Ì=______£®
£¨3£©Èçͼ3Ϊľ¿éÔÚˮƽľ°åÉÏ´ø¶¯Ö½´øÔ˶¯´ò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£¬0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6Ϊ¼ÆÊýµã£¬ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµãδ»­³ö£®´ÓÖ½´øÉϲâ³öx1=3.20cm£¬x2=4.52cm£¬x5=8.42cm£¬x6=9.70cm£®Ôòľ¿é¼ÓËٶȴóСa=______ m/s2£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®
¢ñ£¨1£©Æ½ºâĦ²ÁÁ¦ºó£¬ÏðƤ½îµÄÀ­Á¦µÈÓÚºÏÁ¦£¬ÏðƤÌõ×ö¹¦Íê±Ï£¬Ð¡³µµÄËÙ¶È×î´ó£¬Èô²»½øÐÐƽºâĦ²ÁÁ¦²Ù×÷£¬Ôòµ±ÏðƤ½îµÄÀ­Á¦µÈÓÚĦ²ÁÁ¦Ê±£¬ËÙ¶È×î´ó£¬±¾ÌâÖÐľ°åˮƽ·ÅÖã¬ÏÔȻûÓнøÐÐƽºâĦ²ÁÁ¦µÄ²Ù×÷£¬Òò´Ëµ±Ð¡³µµÄËÙ¶È×î´óʱ£¬ÏðƤ½îÈÔ´¦ÓÚÉ쳤״̬£¬¹ÊBCD´íÎó£¬AÕýÈ·£®
¢ò£¨1£©É°ÂÖÍ£ÏÂʱ£¬É°ÂÖ±ßԵijµãת¹ýµÄ»¡³¤s=2¦Ðn£¬ÆäÖÐnÊÇÉ°ÂÖת¹ýµÄȦÊý£¬É°ÂÖ¿Ë·þĦ²ÁÁ¦×öµÄ¹¦µÈÓÚÉ°ÂÖ¶¯Äܵı仯Á¿£¬ÓÉÄÜÁ¿ÊغãÂÊ¿ÉÖª£ºEK=Wf=fs=
10
¦Ð
¡Á2¦Ðn=20n£¨cm£©=0.2n£¨m£©£¬ÊµÑéʱɰÂֵĶ¯ÄÜÈçϱíËùʾ£º
°ë¾¶r/cm ÖÊÁ¿/m0 ½ÇËٶȣ¨rad/s£© ȦÊý ת¶¯¶¯ÄÜ/J
4 1 2 8 1.60
4 1 3 18 3.60
4 1 4 32 6.40
4 2 2 16 3.20
4 3 2 24 4.80
4 4 2 32 6.40
8 1 2 16 3.20
12 1 2 24 4.80
16 1 2 32 6.40
¢Ù¸ù¾ÝµÚÒ»¡¢¶þ¡¢Èý×éÊý¾Ý£¬°ë¾¶¡¢ÖÊÁ¿Ïàͬ£¬½ÇËٶȲ»Í¬£¬·¢ÏÖ½ÇËٶȱäΪԭÀ´µÄ2±¶£¬×ª¶¯¶¯ÄܱäΪԭÀ´µÄ4±¶£¬½ÇËٶȱäΪԭÀ´µÄ
3
2
±¶£¬×ª¶¯¶¯ÄܱäΪԭÀ´µÄ
9
4
±¶£¬¿É֪ת¶¯¶¯ÄÜÓë½ÇËٶȵĶþ´Î·½³ÉÕý±È£®¢Ú¸ù¾ÝµÚÒ»¡¢ËÄ×éÊý¾Ý£¬°ë¾¶¡¢½ÇËÙ¶ÈÏàͬ£¬ÖÊÁ¿²»Í¬£¬·¢ÏÖÖÊÁ¿±äΪԭÀ´µÄ2±¶£¬×ª¶¯¶¯ÄܱäΪԭÀ´µÄ2±¶£¬¿É֪ת¶¯¶¯ÄÜÓëÖÊÁ¿³ÉÕý±È£®¢ÛÓɵÚÆß¾ÅÁ½×éÊý¾Ý¿ÉÖª£¬ÖÊÁ¿¡¢½ÇËÙ¶ÈÏàͬ£¬°ë¾¶²»Í¬£¬·¢Ïְ뾶±äΪԭÀ´µÄ2±¶£¬×ª¶¯¶¯ÄܱäΪԭÀ´µÄ2±¶£¬¿É֪ת¶¯¶¯ÄÜÓë°ë¾¶µÄ³ÉÕý±È£¬×ÛÉÏËùÊö£¬×ª¶¯¶¯ÄÜÓëÖÊÁ¿¡¢°ë¾¶³ÉÕý±È¡¢Óë½ÇËٶȵĶþ´Î·½³ÉÕý±È£¬±í´ïʽΪ£º
EK=km¦Ø2r£¨kΪ±ÈÀýϵÊý£©£»
£¨2£©·ÖÎöµÄ¹ý³ÌÖÐ×ÜÒª¿ØÖÆһЩÁ¿²»±ä£¬¹Ê´ð°¸Îª£º¿ØÖƱäÁ¿·¨£®
¢ó£º£¨1£©Ó¦µ÷Õû¶¨»¬Âָ߶ȣ¬Ê¹Ï¸ÏßÓ볤ľ°åƽÐУ®
£¨2£©¶Ôľ¿é¡¢íÀÂëÅ̺ÍíÀÂë×é³ÉµÄϵͳ£¬
ÓÉÅ£¶ÙµÚ¶þ¶¨Âɵãºmg-¦ÌMg=£¨M+m£©a£¬
½âµÃ£º¦Ì=
mg-(m+M)a
Mg
£»
£¨3£©ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµãδ»­³ö£¬ËùÒÔÏàÁڵļÆÊýµãÖ®¼äµÄʱ¼ä¼ä¸ôΪ0.1s£¬
¸ù¾ÝÔ˶¯Ñ§¹«Ê½µÃ£º¡÷x=at2£¬a=
(x5-x1)+(x6-x2)
8t2
¡Ö1.3m/s2£®
¹Ê´ð°¸Îª£º¢ñ¡¢A£»¢ò¡¢£¨1£©km¦Ø2r£»£¨2£©¿ØÖƱäÁ¿·¨£»
¢ó£®£¨1£©Ï¸ÏßÓ볤ľ°åƽÐУ»£¨2£©
mg-(m+M)a
Mg
£»£¨3£©1.3£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©Ä³Í¬Ñ§×ö¡°Ì½¾¿¹¦ÓëËٶȱ仯¹Øϵ¡±µÄʵÑéʱ£¬²½ÖèÈçÏ£º
A£®½«´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚÒ»¿éˮƽ³¤Ä¾°åÉÏ£¬Ö½´øµÄÒ»¶Ë¼ÐÔÚС³µºó¶Ë£¬ÁíÒ»¶Ë´©¹ý´òµã¼ÆʱÆ÷£®
B£®½«ÏðƤ½î¹Ì¶¨ÔÚС³µÇ°¶Ë£®
C£®À­³¤ÏðƤ½î£¬Ê¹Ð¡³µÎ»ÓÚºÏÊʵÄλÖã¬ÏÈ·ÅС³µ£¬È»ºó½Óͨ´òµã¼ÆʱÆ÷£®
D£®ÔÚÖ½´øÉÏÑ¡³öµã¼£¾ùÔȵĵ㣬ÕÒ³öС³µ×öÔÈËÙÔ˶¯µÄµã£¬²â³öËٶȣ®ÊµÑé½áÊø£®
Ö¸³ö¸ÃͬѧÒÅ©»ò´íÎóµÄ²½Ö裬²¢¼ÓÒÔ¸ÄÕý£®
A¡¢ÎªÁËʹÏðƤ½î¶ÔС³µËù×ö¹¦¼´ÎªºÏÍâÁ¦¹¦£¬ÊµÑéÖÐÐèÒª½øÐÐƽºâĦ²ÁÁ¦²Ù×÷£»B¡¢ÏðƤ½îÓ¦¸Ã¹Ì¶¨ÔÚľ°åÔ¶Àë´òµã¼ÆʱÆ÷µÄÒ»¶Ë£»C¡¢ÎªÁËÌá¸ßÖ½´øµÄÀûÓÃÂÊ£¬ÔÚÖ½´øÉϾ¡Á¿¶àµÄ´òµã£¬ÔÚ½øÐÐʵÑéʱҪÏÈͨµç´òµã£¬ºóÊÍ·ÅС³µ£»D¡¢ÔÚ´¦ÀíÊý¾ÝÖ®¼äÓ¦¸ÃÓÃ2¸ù£¬Èý¸ù£¬4¸ù£¬5¸ùÖظ´ÊµÑ飬×öÍêʵÑéÒª¶Ï¿ªµç·£¬ÕûÀíÒÇÆ÷£®
A¡¢ÎªÁËʹÏðƤ½î¶ÔС³µËù×ö¹¦¼´ÎªºÏÍâÁ¦¹¦£¬ÊµÑéÖÐÐèÒª½øÐÐƽºâĦ²ÁÁ¦²Ù×÷£»B¡¢ÏðƤ½îÓ¦¸Ã¹Ì¶¨ÔÚľ°åÔ¶Àë´òµã¼ÆʱÆ÷µÄÒ»¶Ë£»C¡¢ÎªÁËÌá¸ßÖ½´øµÄÀûÓÃÂÊ£¬ÔÚÖ½´øÉϾ¡Á¿¶àµÄ´òµã£¬ÔÚ½øÐÐʵÑéʱҪÏÈͨµç´òµã£¬ºóÊÍ·ÅС³µ£»D¡¢ÔÚ´¦ÀíÊý¾ÝÖ®¼äÓ¦¸ÃÓÃ2¸ù£¬Èý¸ù£¬4¸ù£¬5¸ùÖظ´ÊµÑ飬×öÍêʵÑéÒª¶Ï¿ªµç·£¬ÕûÀíÒÇÆ÷£®
£®
£¨2£©ÔÚÕýÈ·²Ù×÷Çé¿öÏ£¬¹Û²ì´òÔÚÖ½´øÉϵĵ㣬ÈçͼËùʾΪÁ˲âÁ¿Ð¡³µ»ñµÃµÄËٶȣ¬Ó¦Ñ¡ÓÃÏÂͼֽ´øµÄ
EF
EF
²¿·Ö½øÐвâÁ¿£»ÒÑÖªÁ¬ÐøÁ½µã¼äʱ¼ä¼ä¸ôΪt£¬ÔòËù²âµÃËÙ¶ÈΪ
v=
EF
2t
v=
EF
2t
£¨¾ùÓ÷ûºÅ±íʾ£©£®

£¨3£©ÈôʵÑé×÷ÁËn´Î£¬ËùÓÃÏðƤ½î·Ö±ðΪ1¸ù¡¢2¸ù¡­n¸ù£¬Í¨¹ýÖ½´øÇó³öС³µµÄËٶȷֱðΪv1¡¢v2¡­vn£¬ÓÃW±íʾÏðƤ½î¶ÔС³µËù×öµÄ¹¦£¬×÷³öµÄW-v2ͼÏóÊÇÒ»Ìõ¹ý×ø±êÔ­µãµÄÖ±Ïߣ¬Õâ˵Ã÷WÓëv2µÄ¹ØϵÊÇ
w=kv2
w=kv2
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧΪ̽¾¿¡°ºÏÁ¦×ö¹¦ÓëÎïÌ嶯ÄܸıäµÄ¹Øϵ¡±£¬Éè¼ÆÁËÈçÏÂʵÑ飬ËûµÄ²Ù×÷²½ÖèÊÇ£º

¢Ù°´Èçͼ1Ëùʾ£¬°²×°ºÃʵÑé×°Öã¬ÆäÖÐС³µÖÊÁ¿M=0.20kg£¬¹³Âë×ÜÖÊÁ¿m=0.05kg£®
¢ÚÊÍ·ÅС³µ£¬È»ºó½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¨µçԴƵÂÊΪ50Hz£©£¬´ò³öÒ»ÌõÖ½´ø£®
£¨1£©ËûÔÚ¶à´ÎÖظ´ÊµÑéµÃµ½µÄÖ½´øÖÐÑ¡³öÂúÒâµÄÒ»Ìõ£¬Èçͼ2Ëùʾ£®°Ñ´òϵĵÚÒ»µã¼Ç×÷Oµã£¬È»ºóÒÀ´ÎÈ¡Èô¸É¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ»­³ö£©£¬Óÿ̶ȳ߲âµÃ¸÷¼ÆÊýµãµ½OµãµÄ¾àÀë·Ö±ðΪd1=0.004m£¬d2=0.055m£¬d3=0.167m£¬d4=0.256m£¬d5=0.360m£¬d6=0.480m£¬Ëû°Ñ¹³ÂëÖØÁ¦×÷ΪС³µËùÊܺÏÍâÁ¦£¬È¡µ±µØÖØÁ¦¼ÓËÙ¶Èg=9.8m/s2£¬Ëã³ö´Ó´òOµãµ½´ò¡°5¡±µãÕâÒ»¹ý³ÌÖкÏÁ¦×ö¹¦W=
0.176
0.176
J£¬°Ñ´ò¡°5¡±µãʱС³µµÄ¶¯ÄÜ×÷ΪС³µ¶¯ÄܵĸıäÁ¿£¬ËãµÃEk=
0.125
0.125
J£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£®
£¨2£©´Ë´ÎʵÑé̽¾¿µÄ½á¹ûÆ«²îºÜ´ó£¬Ã»Äܵõ½¡°ºÏÍâÁ¦¶ÔÎïÌå×öµÄ¹¦µÈÓÚÎïÌ嶯ÄܵÄÔöÁ¿¡±£®Í¨¹ý·´Ë¼£¬ËûÈÏΪ²úÉú½Ï´óÆ«²îµÄÔ­ÒòÈçÏ£¬ÆäÖпÉÄܵÄÊÇ
AB
AB

A£®¹³ÂëÖÊÁ¿Ì«´ó£¬Ê¹µÃºÏÍâÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à
B£®Ã»ÓÐƽºâĦ²ÁÁ¦£¬Ê¹µÃºÏÍâÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à
c£®ÊÍ·ÅС³µºÍ½ÓͨµçÔ´µÄ´ÎÐòÓÐÎó£¬Ê¹µÃ¶¯ÄÜÔöÁ¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫС
D£®¼ÆËã¡°5¡±µãµÄ˲ʱËÙ¶Èʱ£¬Á½¼ÆÊýµã¼äʱ¼ä¼ä¸ôÎóÈ¡ÁË0.08s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©Ä³Ð£Ñ§Ï°ÐËȤС×éÔÚÑо¿¡°Ì½Ë÷С³µËÙ¶ÈËæʱ¼ä±ä»¯µÄ¹æÂÉ¡±µÄʵÑ飬ͼ1ÊÇij´ÎʵÑéµÃ³öµÄÖ½´ø£¬ËùÓõçÔ´µÄƵÂÊΪ
50HZ£¬ÉáȥǰÃæ±È½ÏÃܼ¯µÄµã£¬´Ó0µã¿ªÊ¼£¬Ã¿5¸öÁ¬ÐøµãÈ¡1¸ö¼ÆÊýµã£¬±êÒÔ1¡¢2¡¢3¡­£®¸÷¼ÆÊýµãÓë0¼ÆÊýµãÖ®¼äµÄ¾àÀëÒÀ´ÎΪ
d1=3cm£¬d2=7.5cm£¬d3=13.5cm£¬Ôò£º
£¨1£©ÎïÌå×ö
ÔȼÓËÙÖ±Ïß
ÔȼÓËÙÖ±Ïß
µÄÔ˶¯£¬ÀíÓÉÊÇ
ÏàÁÚµÄʱ¼ä¼ä¸ôλÒÆÖ®²îÏàµÈ
ÏàÁÚµÄʱ¼ä¼ä¸ôλÒÆÖ®²îÏàµÈ
£»
£¨2£©ÎïÌåͨ¹ý1¼ÆÊýµãµÄËٶȦÔ1=
0.375
0.375
m/s£»
£¨3£©ÎïÌåÔ˶¯µÄ¼ÓËÙ¶ÈΪa=
1.5
1.5
m/s2£®

£¨2£©Ä³Í¬Ñ§Éè¼ÆÁËÒ»¸ö̽¾¿¼ÓËÙ¶ÈÓëÎïÌåËù  ÊܺÏÍâÁ¦F¼°ÖÊÁ¿MµÄ¹ØϵʵÑ飮ͼ2ΪʵÑé×°Öüòͼ£¬AΪС³µ£¬BΪ´òµã¼ÆʱÆ÷£¬CΪװÓÐÉ°µÄÉ°Í°£¨×ÜÖÊÁ¿Îªm£©£¬DΪһ¶Ë´øÓж¨»¬Âֵij¤Ä¾°å£®
¢ÙÈô±£³ÖÉ°ºÍÉ°Í°ÖÊÁ¿m²»±ä£¬¸Ä±äС³µÖÊÁ¿M£¬·Ö±ðµÃµ½Ð¡³µ¼ÓËÙ¶ÈaÓëÖÊÁ¿M¼°¶ÔÓ¦µÄ
1
M
Êý¾ÝÈç±í1Ëùʾ£®
±í1
´ÎÊý 1 2 3 4 5
С³µ¼ÓËÙ¶Èa/£¨m?s-2£© 1.98 1.48 1.00 0.67 0.50
С³µÖÊÁ¿M/kg 0.25 0.33 0.50 0.75 1.00
ÖÊÁ¿µ¹Êý
1
M
/kg-1
4.00 3.00 2.00 1.33 1.00
¸ù¾Ý±í1Êý¾Ý£¬ÎªÖ±¹Û·´Ó³F²»±äʱaÓëMµÄ¹Øϵ£¬ÇëÔÚͼ3ËùʾµÄ·½¸ñ×ø±êÖ½ÖÐÑ¡ÔñÇ¡µ±µÄÎïÀíÁ¿½¨Á¢×ø±êϵ£¬²¢×÷³öͼÏߣ®
´ÓͼÏßÖеõ½F²»±äʱ£¬Ð¡³µ¼ÓËÙ¶ÈaÓëÖÊÁ¿MÖ®¼ä´æÔڵĹØϵÊÇ
aÓëM³É·´±È
aÓëM³É·´±È
£®
¢ÚijͬѧÔÚ̽¾¿aÓëFµÄ¹Øϵʱ£¬°ÑÉ°ºÍÉ°Í°µÄ×ÜÖØÁ¦µ±×÷  Ð¡³µµÄºÏÍâÁ¦F£¬×÷³öa-FͼÏßÈçͼ4Ëùʾ£¬ÊÔ·ÖÎöͼÏß²»¹ýÔ­µãµÄÔ­ÒòÊÇ
ƽºâĦ²ÁÁ¦Ê±Ä¾°åÇã½ÇÌ«´ó
ƽºâĦ²ÁÁ¦Ê±Ä¾°åÇã½ÇÌ«´ó
£¬Í¼ÏßÉϲ¿ÍäÇúµÄÔ­ÒòÊÇ
ûÓÐÂú×ãÉ°ºÍÉ°Í°µÄ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µÖÊÁ¿M
ûÓÐÂú×ãÉ°ºÍÉ°Í°µÄ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µÖÊÁ¿M
£®
¢ÛÔÚÕâ¸öʵÑéÖУ¬ÎªÁË̽¾¿Á½¸öÎïÀíÁ¿Ö®¼äµÄ¹Øϵ£¬Òª±£³ÖµÚÈý¸öÎïÀíÁ¿²»±ä£¬ÕâÖÖ̽¾¿·½·¨½Ð×ö
¿ØÖƱäÁ¿
¿ØÖƱäÁ¿
 ·¨£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©²âÁ¿»¬¿éÔÚÔ˶¯¹ý³ÌÖÐËùÊܵĺÏÍâÁ¦ÊÇ¡°Ì½¾¿¶¯Äܶ¨Àí¡±ÊµÑéÒª½â¾öµÄÒ»¸öÖØÒªÎÊÌ⣮Ϊ´Ë£¬Ä³Í¬Ñ§Éè¼ÆÁËÈçÏÂʵÑé·½°¸£º
A£®ÊµÑé×°ÖÃÈçͼ1Ëùʾ£¬Ò»¶ËϵÔÚ»¬¿éÉϵÄϸÉþͨ¹ýתÖá¹â»¬µÄÇáÖÊ»¬ÂÖ¹ÒÉϹ³Â룬Óõæ¿é½«³¤Ä¾°å¹Ì¶¨Óж¨»¬ÂÖµÄÒ»¶ËµæÆ𣮵÷Õû³¤Ä¾°åµÄÇã½Ç£¬Ö±ÖÁÇáÍÆ»¬¿éºó£¬»¬¿éÑس¤Ä¾°åÏòÏÂ×öÔÈËÙÖ±ÏßÔ˶¯£»
B£®±£³Ö³¤Ä¾°åµÄÇã½Ç²»±ä£¬È¡ÏÂϸÉþºÍ¹³ÂëÈû¬¿éÑس¤Ä¾°åÏòÏÂ×öÔȼÓËÙÖ±ÏßÔ˶¯£®

Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ù»¬¿é×öÔÈËÙÖ±ÏßÔ˶¯Ê±£¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏËù´ò³öµãµÄ·Ö²¼Ó¦¸ÃÊÇ
¾ùÔȵÄ
¾ùÔȵÄ
£»¢Ú»¬¿éÔÚÔȼÓËÙÏ»¬¹ý³ÌÖÐËùÊܵĺÏÍâÁ¦´óС
µÈÓÚ
µÈÓÚ
¹³ÂëµÄÖØÁ¦´óС£¨Ñ¡Ìî¡°´óÓÚ¡±¡¢¡°µÈÓÚ¡±»ò¡°Ð¡ÓÚ¡±£©£»
£¨2£©Ä³Í¬Ñ§×ö¡°Ãè»æСµÆÅݵķü°²ÌØÐÔÇúÏß¡±ÊµÑ飬ʵÑéÊÒÌṩÁËϱíÖеÄÆ÷²Ä£®
СµÆÅÝL£¨¶î¶¨µçѹ2.5V£¬¶î¶¨µçÁ÷250mA£© Ö±Á÷µçÔ´E£¨µç¶¯ÊÆ3V£¬ÄÚ×è²»¼Æ£©
µçÁ÷±íA1£¨Á¿³Ì300mA£¬ÄÚ×èÔ¼0.5¦¸£© µçÁ÷±íA2£¨Á¿³Ì500mA£¬ÄÚ×èÔ¼0.2¦¸£©
µçѹ±íV1£¨Á¿³Ì3V£¬ÄÚ×èÔ¼3k¦¸£© µçѹ±íV2£¨Á¿³Ì6V£¬ÄÚ×èÔ¼6k¦¸£©
»¬¶¯±ä×èÆ÷£¨×î´ó×èÖµÔ¼10¦¸£© ¿ª¹ØS£¬µ¼ÏßÈô¸É
¢ÙΪÁËʹʵÑéÎó²î¾¡¿ÉÄÜС£¬Ó¦Ñ¡ÓõĵçÁ÷±íÊÇ
A1
A1
¡¢µçѹ±íÊÇ
V1
V1
£»
¢ÚÈô¸ÃͬѧÒÑÕýÈ·Ñ¡ÓÃÆ÷²Ä£¬²¢Á¬½ÓºÃ²¿·ÖʵÑéµç·£¬Èçͼ¼×£®ÇëÔÚͼ¼×ÖÐÍê³ÉÆäÓàµÄµç·Á¬½Ó£¬ÒªÇóСµÆÅÝÁ½¶ËµÄµçѹÄÜÔÚ0¡«2.5V·¶Î§Á¬Ðø±ä»¯£¬ÇÒ¾¡¿ÉÄܼõÉÙʵÑéÎó²î£»
¢Û¸ÃͬѧÔÚÕýÈ·Íê³ÉʵÑéºóµÃµ½Í¼ÒÒËùʾµÄ·ü°²ÌØÐÔÇúÏߣ¬Ëû´ÓͼÏßÖеõ½¡°Í¨¹ýСµÆÅݵĵçÁ÷ËæµçѹµÄÔö´ó¶øÔö´ó¡±µÄ¹æÂÉ£®ÇëÄã·ÖÎöͼÏßÔÙд³öÁ½Ìõ¹æÂÉ£ºa£®
СµÆÅݵĵç×èËæζȵÄÉý¸ß¶øÔö´ó£»
СµÆÅݵĵç×èËæζȵÄÉý¸ß¶øÔö´ó£»
£»b£®
СµÆÅݵŦÂÊËæµçѹµÄÔö´ó¶øÔö´ó
СµÆÅݵŦÂÊËæµçѹµÄÔö´ó¶øÔö´ó
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Í¬Ñ§ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵ¡±ÊµÑéÖУ¬±£³ÖÎïÌåµÄÖÊÁ¿²»±ä£¬¸Ä±äÎïÌåËùÊܺÏÍâÁ¦µÄ´óС£¬µÃµ½µÄa-FͼÏóÈçͼ1Ëùʾ£¬Óɴ˵óöµÄ½áÂÛÊÇ£º
 
£®
£¨2£©Èçͼ2ËùʾµÄ×°ÖÃ×ö¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑ飮ʵÑéÖÐÐè²âÁ¿ÖØÎïÏÂÂäµÄ˲ʱËٶȣ®ÔÚÖØÎïÍ϶¯µÄÖ½´øÉÏÑ¡ÔñÈý¸öÁ¬ÐøµÄµã£¬ËüÃÇÖ®¼äµÄ¾àÀëÈçͼ3Ëùʾ£¬ÒÑÖª´òµã¼ÆʱÆ÷ÿ¸ô0.02s´òÒ»¸öµã£¬¼ÆʱÆ÷ÔÚ´òÏÂBµãʱÖØÎïµÄËٶȴóСΪ
 
m/s£®¶à´ÎʵÑéºó·¢ÏÖ£¬ÖØÎï¼õСµÄÖØÁ¦ÊÆÄÜ×ÜÊÇÉÔ´óÓÚÔö¼ÓµÄ¶¯ÄÜ£¬·ÖÎö²úÉúÕâÖÖÎó²îµÄÔ­Òò£º
 
£®
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸