£¨1£©¢Ù½«´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚбÃæÉÏij´¦£¬Ò»Ð¡³µÍÏ×Å´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´ø´ÓбÃæÉÏ»¬Ï£¬ÈçͼËùʾÊÇ´ò³öµÄÖ½´øµÄÒ»¶Î£®µ±µçԴƵÂÊΪ50Hzʱ£¬Ã¿¸ô0.1sÈ¡Ò»¸ö¼ÆÊýµã£¬ËüÃÇÊÇͼÖÐa¡¢b¡¢c¡¢d¡¢e¡¢fµÈµã£¬Õâ¶Îʱ¼äÄÚ¼ÓËٶȵÄƽ¾ùÖµÊÇ
 
£¨È¡Á½Î»ÓÐЧÊý×Ö£©£®ÈôµçԴƵÂʸßÓÚ50Hz£¬µ«¼ÆËãÈÔ°´50Hz¼ÆË㣬Æä¼ÓËÙ¶ÈÊýÖµ½«
 
 £¨Ìî¡°Æ«´ó¡±¡¢¡®¡®Æ«Ð¡¡¯¡¯»ò¡°Ïàͬ¡±£©£®
¢ÚΪÁËÇó³öС³µÔÚÏ»¬¹ý³ÌÖÐËùÊܵÄ×èÁ¦£¬³ýÐèÒª²â³öС³µµÄÖÊÁ¿mÍ⣬»¹ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÊÇ
 
£¬ÓòâµÃµÄÁ¿¼°¼ÓËÙ¶Èa±íʾµÄ×èÁ¦µÄ¼ÆËãʽΪf=
 
£®
¾«Ó¢¼Ò½ÌÍø
£¨2£©Èçͼ¼×ËùʾµÄµç·ÖУ¬1ÖÁ11ΪÁ¬½ÓµãµÄ±êºÅ£®ÔÚ¿ª¹Ø±ÕºÏºó£¬·¢ÏÖСµÆÅݲ»ÁÁ£¬µçѹ±íºÍµçÁ÷±í¾ùÎÞʾÊý£®ÏÖÓöàÓõç±í¼ì²éµç·¹ÊÕÏ£¬ÐèÒª¼ì²âµÄÓУºµçÔ´¡¢¿ª¹Ø¡¢±ä×èÆ÷¡¢Ð¡µÆÅÝ¡¢6¸ùµ¼ÏßÒÔ¼°µç·Öеĸ÷Á¬½Óµã£®ËÈÖªµçѹ±íºÍµçÁ÷±í¾ùÎÞ¹ÊÕÏ£®
¢ÙΪÁ˼ì²â±ä×èÆ÷¡¢Ð¡µÆÅÝÒÔ¼°6¸ùµ¼Ïߣ¬ÔÚÁ¬½Óµã1¡¢2ÒѽӺõÄÇé¿öÏ£¬Ó¦µ±Ñ¡ÓöàÓõç±íµÄ
 
µµ£»ÔÚÁ¬½Óµã1¡¢2ͬʱ¶Ï¿ªµÄÇé¿öÏ£¬Ó¦µ±Ñ¡ÓöàÓõç±íµÄ
 
µµ£®
¢ÚÔÚ¿ª¹Ø±ÕºÏÇé¿öÏ£¬¶àÓõç±íÑ¡ÔñÐýÅ¥ÖÃÓÚ¡°Ö±Á÷µçѹ5V¡±µ²£¬²âµÃ5¡¢6Á½µã¼äµç±íָʾÈçͼ£¬Ôò5¡¢6Á½µã¼äµÄµçѹÊÇ
 
V£®
¢ÛΪÁ˾¡¿ÉÄÜ׼ȷµÄÍê³É̽¾¿Ð¡µÆÅÝI-UÌØÐÔµÄʵÑ飬ͼ¼×µç·½ÓÏßͼÖл¹´æÔÚ´í©£¬ÇëÄãÔÚͼ¼×Öв¹»­³öÕýÈ·µÄÁ¬½ÓÏߣ®
¢ÜͼÒÒÊÇijʵÑéС×éµÄͬѧ¸ùé§ÊµÑéÊý¾Ý»æÖƶø³ÉµÄСµÆÅݵÄU-IÌØÐÔͼÏߣ®ËæºóËûÃǽ«¸ÃСµÆÅÝÖ±½Ó´®½ÓÔڵ綯ÊÆE=4.5V£¬ÄÚ×èr=1.5¦¸µÄÖ±Á÷µçÔ´ÉÏ£¬Ôò¸ÃСµÆÅÝͨµç·¢¹âʱµÄµç¹¦ÂÊԼΪ
 
W£®
¾«Ó¢¼Ò½ÌÍø
·ÖÎö£º£¨1£©ÀûÓÃÖð²î·¨Çó³ö¼ÓËٶȣ¬È»ºóÔÚÇóÆäƽ¾ùÖµ£¬Ã÷ȷƵÂʺÍÖÜÆڵĹØϵ£¬¼´¿ÉÅжϼÓËÙ¶ÈÖµµÄ±ä»¯£®¶ÔС³µÊÜÁ¦·ÖÎö£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉд³ö±í´ïʽ£¬¿ÉÃ÷È·ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÒÔ¼°×èÁ¦µÄ¼ÆË㹫ʽ£®
£¨2£©¢ÙΪÁ˼ì²â±ä×èÆ÷¡¢Ð¡µÆÅÝÒÔ¼°6¸ùµ¼Ïߣ¬ÔÚÁ¬½Óµã1¡¢2ÒѽӺõÄÇé¿öÏ£¬ÔËÓöàÓõç±íµÄµçѹµµÈ¥²âijÁ½µã¼äµÄµçѹ£¬ÕÒ³ö¹ÊÕÏËùÔÚ£®ÈôÔÚÁ¬½Óµã1¡¢2ͬʱ¶Ï¿ªµÄÇé¿öÏ£¬¶àÓõç±íÖеĵçÔ´ÐèÆð×÷Óã¬Ó¦Ñ¡ÓÃÅ·Ä·µµ£®
¢Ú»æÖƶø³ÉµÄСµÆÅݵÄU-IÌØÐÔͼÏߣ¬»¬¶¯±ä×èÆ÷Ðè²ÉÓ÷Öѹʽ½Ó·¨£¬µçÁ÷±í²ÉÈ¡Íâ½Ó·¨£®
¢Û×÷³öµç¶¯ÊÆE=4.5V£¬ÄÚ×èr=1.5¦¸µÄÖ±Á÷µçÔ´µÄU-IͼÏߣ¬ÓëСµÆŵķü°²ÌØÐÔÇúÏߵĽ»µãËù¶ÔÓ¦µÄµçѹºÍµçÁ÷Ϊ´ËʱµÄʵ¼ÊµçѹºÍʵ¼ÊµçÁ÷£¬¸ù¾ÝP=UIСµÆÅÝͨµç·¢¹âʱµÄµç¹¦ÂÊ£®
½â´ð£º¾«Ó¢¼Ò½ÌÍø½â£º£¨1£©¢Ù¸ù¾ÝÌâÒâÖª¸ø³öÁËËĶÎλÒÆ£¬Òò´Ë¿ÉÒÔÈ¥µôµÚÒ»¶Î£¬ÓУºx2=1.60-0.41=1.19cm£¬x3=3.59-1.60=1.99cm£¬
x4=6.40-3.59=2.81cm£¬x5=10.02-6.40=3.62cm£®
¸ù¾ÝÖð²î·¨ÓУº
x5-x3=2a1T2
x4-x2=2a2T2
a=
a1+a2
2

´øÈëÊý¾Ý½âµÃ£ºa=0.80m/s2 £¨0.80¡«0.82·¶Î§¾ùÕýÈ·£©£¬
µ±ÆµÂʸßÓÚ50Hz£¬¸ù¾ÝT=
1
f
¿É֪ʵ¼ÊµÄÖÜÆÚƫС£¬µ«ÊǼÆËãʱ°´´óµÄÖÜÆÚ¼ÆË㣬Òò´Ë¼ÆËã½á¹û½«Æ«Ð¡£®
¢Ú¶ÔС³µ½øÐÐÊÜÁ¦·ÖÎö£¬Ð¡³µÊÜÖØÁ¦¡¢Ö§³ÖÁ¦¡¢×èÁ¦£®
½«ÖØÁ¦ÑØбÃæºÍ´¹Ö±Ð±Ãæ·Ö½â£¬ÉèбÃæÇã½ÇΪ¦È£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵãº
FºÏ=mgsin¦È-f=ma
f=mgsin¦È-ma£¬
ËùÒÔÎÒÃÇÒªÇó³öС³µÖÊÁ¿mºÍsin¦È£¬
ÄÇôʵ¼Ê²âÁ¿Ê±£¬ÎÒÃÇÓ¦¸Ã²â³öбÃæÉÏÈÎÒâÁ½µã¼ä¾àÀëL¼°ÕâÁ½µãµÄ¸ß¶È²îhÀ´Çósin¦È£¬¼´sin¦È=
h
L

ËùÒԵãºf=mg
h
L
-ma   
£¨2£©¢ÙÔÚµç·ȫ²¿Á¬½ÓºÃ£¬ÐèÒªÕÒ¹ÊÕÏʱ£¬ÓöàÓõç±íµÄµçѹµµ£¬ÔÚµç·ÓëµçÔ´¶Ï¿ªÊ±£¬ÐèÒªÕÒ¹ÊÕÏʱ£¬ÓöàÓõç±íµÄÅ·Ä·µµ£®
¢Ú²âÁ¿µçѹµÄͼʾ¶ÁÊý£ºÒò×îС·Ö¶ÈΪ0.1V£¬ÔòÒª¹À¶Áµ½ÏÂһλΪ£º3.90V
¢ÛÒòΪµçѹµçÁ÷ÐèÒª´ÓÁ㿪ʼ²âÆð£¬ËùÒÔ»¬¶¯±ä×èÆ÷ÐèÒª²ÉÓ÷Öѹʽ½Ó·¨£¬µÆÅݵĵç×è½ÏС£¬µçÁ÷±íÐèÒª²ÉÓÃÍâ½Ó·¨£®Á¬½ÓÈçÓÒͼ£®
¾«Ó¢¼Ò½ÌÍø
¢Ü×÷³öµçÔ´µÄU-IͼÏߣ¬ÈçÉÏͼ£¬½»µãËù¶ÔÓ¦µÄµçѹºÍµçÁ÷·Ö±ðΪ3.4V¡¢0.8A£¬ËùÒÔʵ¼Ê¹¦ÂÊ£ºP=UI=3.4¡Á0.8=2.72W£®
¹Ê´ð°¸Îª£º£¨1£©¢Ù0.80m/s2 £¨0.80¡«0.82·¶Î§¾ùÕýÈ·£©£»Æ«Ð¡£»
¢ÚбÃæµÄ¸ßhÓëбÃæµÄ³¤L£»  mg
h
L
-ma£»
£¨2£©¢Ùµçѹ£»Å·Ä·£»¢Ú3.90£»¢ÛÈçͼËùʾ£»¢Ü2.72
µãÆÀ£º£¨1£©Äܹ»ÔËÓÃÖð²î·¨Çó½â¼ÓËٶȣ¬Äܹ»°ÑÖ½´øµÄÎÊÌâ½áºÏ¶¯Á¦Ñ§ÖªÊ¶ÔËÓýâ¾öÎÊÌ⣮
£¨2£©½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕʵÎïͼÁ¬½ÓµÄ·½·¨ºÍ×¢ÒâÊÂÏ֪µÀµçÔ´µÄÍâµçѹºÍµçÁ÷¹ØϵͼÏߵĽؾàºÍбÂʱíʾµÄÎïÀíÒâÒ壮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚÀûÓÃ×ÔÓÉÂäÌåÔ˶¯ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬µçÔ´µÄƵÂÊΪ50Hz£¬ÒÀ´Î´ò³öµÄµãΪ0£¬1£¬2£¬3£¬4£¬¡­£¬n£®Ôò£º

¢ÙÔÚͼÖÐËùʾµÄÁ½ÌõÖ½´øÖÐӦѡȡµÄÖ½´øÊÇ
a
a
£¬Ô­ÒòÊÇ
Ç°Á½µãµÄ¾àÀë½Ó½ü2mm£¬½üËÆÓÚ×ÔÓÉÂäÌåÔ˶¯£®
Ç°Á½µãµÄ¾àÀë½Ó½ü2mm£¬½üËÆÓÚ×ÔÓÉÂäÌåÔ˶¯£®
£®
¢ÚÈçÓôÓÆðµã0µ½µÚ3µãÖ®¼äÀ´ÑéÖ¤£¬±ØÐëÖ±½Ó²âÁ¿µÄÎïÀíÁ¿Îª
µã0µ½µã3µÄ¾àÀëh3£¬µã2ÖÁµã4µÄ¾àÀëh24
µã0µ½µã3µÄ¾àÀëh3£¬µã2ÖÁµã4µÄ¾àÀëh24
£¬±ØÐë¼ÆËã³öµÄÎïÀíÁ¿Îª
µã3µÄ˲ʱËÙ¶Èv3
µã3µÄ˲ʱËÙ¶Èv3
£¬ÑéÖ¤µÄ±í´ïʽΪ
mgh3=
1
2
m
v
2
3
mgh3=
1
2
m
v
2
3
£®
¢ÛÏÂÁÐʵÑé²½Öè²Ù×÷ºÏÀíµÄ˳ÐòÅÅÁÐÊÇ
ADBCEF
ADBCEF
_£¨Ìîд²½ÖèÇ°ÃæµÄ×Öĸ£©
A£®½«´òµã¼ÆʱÆ÷ÊúÖ±°²×°ÔÚÌú¼Ų̈ÉÏ£¬
B£®½ÓͨµçÔ´£¬ÔÙËÉ¿ªÖ½´ø£¬ÈÃÖØÎï×ÔÓÉÏÂÂ䣬
C£®È¡ÏÂÖ½´ø£¬¸ü»»ÐÂÖ½´ø£¨»ò½«Ö½´ø·­¸öÃ棩ÖØÐÂ×öʵÑ飬
D£®½«ÖØÎï¹Ì¶¨ÔÚÖ½´øµÄÒ»¶Ë£¬ÈÃÖ½´ø´©¹ý´òµã¼ÆʱÆ÷£¬ÓÃÊÖÌáÖ½´ø£¬
E£®Ñ¡ÔñÒ»ÌõÖ½´ø£¬Óÿ̶ȳ߲â³öÎïÌåÏÂÂäµÄ¸ß¶Èh1£¬h2£¬h3£¬¡­hn£¬¼ÆËã³ö¶ÔÓ¦µÄ˲ʱËÙ¶Èv1£¬v2£¬v3£¬¡­£¬vn£¬
F£®·Ö±ðËã³ö
1
2
mvn2ºÍmghn£¬ÔÚʵÑéÎó²î·¶Î§ÄÚ¿´ÊÇ·ñÏàµÈ£®
¢Ü±¾ÊµÑéÖУ¬¼ÆËã³ö´Ó0µãµ½Ä³µãÖØÁ¦ÊÆÄܵļõÉÙÁ¿Ó붯ÄܵÄÔö¼ÓÁ¿Ïà±È½Ï£¬ÊÇƫС»¹ÊÇÆ«´ó£¿Çëд³ö¼õÉÙÆ«²îµÄʵÑé¸Ä½ø´ëÊ©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©ÊµÑéÊÒÀûÓôòµã¼ÆʱÆ÷Ñо¿Ð¡»¬¿éµÄÔ˶¯Çé¿ö£¬´ò³öÈçͼËùʾµÄÖ½´ø£¬ÆäÖÐÖ½´øB¶ËÓ뻬¿éÏàÁ¬½Ó£¬¼ÆʱÆ÷½ÓÔÚƵÂÊΪ50HzµÄ½»Á÷µçÔ´ÉÏ£®Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢ÙÖ½´øÖÐAB¶ÎÔ˶¯µÄʱ¼äΪ
0.08s
0.08s
£®
¢Ú¸ù¾ÝÖ½´øÇëÅжϸû¬¿éµÄÔ˶¯ÊôÓÚ
ÔȼõËÙ
ÔȼõËÙ
£¨Ìî¡°ÔÈËÙ¡±¡¢¡°ÔȼÓËÙ¡±¡¢¡°ÔȼõËÙ¡±£©Ö±ÏßÔ˶¯£®
¢Û´ÓÖ½´ø¿ÉÒÔ²â³öABÁ½µã¼äµÄ¾àÀëΪ
9.20cm
9.20cm
£¬»¬¿éµÄ¼ÓËٶȴóСΪ
5.00m/s2
5.00m/s2
£¨¼ÆËã½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£®

£¨2£©ÎªÁ˲âÁ¿Ä³Ò»Î´Öª×èÖµµÄµç×èRx£¬Ä³ÊµÑéС×éÕÒÀ´ÒÔÏÂÆ÷²Ä£ºµçѹ±í£¨0¡«3V£¬ÄÚ×èÔ¼3k¦¸£©¡¢µçÁ÷±í£¨0¡«0.6A£¬ÄÚ×èÔ¼1¦¸£©¡¢»¬¶¯±ä×èÆ÷£¨0¡«15¦¸£¬2A£©¡¢µçÔ´£¨E=3V£¬ÄÚ×èºÜС£©¡¢¿ª¹ØÓëµ¼Ïߣ¬¸ÃС×éͬѧʵÑé²Ù×÷ÈçÏ£¬ÇëÄã°´ÒªÇóÌîд£º
¢Ù¶Ï¿ª¿ª¹Ø£¬Ç밴ͼ¼×ËùʾµÄµç·ͼÔÚͼÒÒÖÐÁ¬½ÓʵÎïͼ£»
¢ÚÈçͼÒÒ£¬±ÕºÏ¿ª¹ØÇ°£¬Ó¦½«»¬¶¯±ä×èÆ÷µÄ»¬Æ¬ÖÃÓÚ
a
a
¶Ë£®
¢Û±ÕºÏ¿ª¹Ø£¬»ºÂýµ÷½Ú»¬¶¯±ä×èÆ÷£¬µÃµ½¶à×éµçѹ±íÓëµçÁ÷±íµÄ¶ÁÊý£¬½¨Á¢ºÏÊʵÄ×ø±êϵ×÷³öI-UͼÈçÏ£»
¢ÜÕûÀíÒÇÆ÷
¸ù¾ÝI-Uͼ¿ÉµÃ£¬¸Ãδ֪µç×èµÄ×èֵΪRx=
5.0
5.0
£®£¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
ÓÉÓÚʵÑéÖÐʹÓõĵç±í²»ÊÇÀíÏëµç±í£¬»á¶ÔʵÑé½á¹ûÔì³ÉÒ»¶¨µÄÓ°Ï죬Ôò¸ÃС×éͬѧʵÑé²â³öµÄµç×èÖµ
£¾
£¾
 RXµÄÕæʵֵ£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°=¡±£©£®
ÀûÓÃÏÖÓеÄÒÇÆ÷£¬ÎªÁ˸ü¼Ó¾«È·µØ²âÁ¿Õâ¸öµç×èµÄ×èÖµ£¬Äã¸ø¸ÃʵÑéС×éµÄ½¨ÒéÊÇ£º
µçÁ÷±í²ÉÓÃÍâ½Ó·¨
µçÁ÷±í²ÉÓÃÍâ½Ó·¨
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼΪÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑé×°ÖÃʾÒâͼ£®ÏÖÓеÄÆ÷²ÄΪ£º´øÌú¼ÐµÄÌú¼Ų̈¡¢µç´Å´òµã¼ÆʱÆ÷¡¢Ö½´ø¡¢´øÌú¼ÐµÄÖØ´¸¡¢Ììƽ£®»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÎªÍê³É´ËʵÑ飬³ýÁËËù¸øµÄÆ÷²ÄÍ⣬»¹ÐèÒªµÄÆ÷²ÄÓÐ
AD
AD
£®£¨ÌîÈëÕýÈ·Ñ¡ÏîÇ°µÄ×Öĸ£©
A£®Ã׳ߠ  B£®Ãë±í   C£®µÍѹֱÁ÷µçÔ´  D£®µÍѹ½»Á÷µçÔ´
£¨2£©ÏÂÃæÁоÙÁ˸ÃʵÑéµÄ¼¸¸ö²Ù×÷²½Ö裺
A£®°´ÕÕͼʾµÄ×°Öð²×°Æ÷²Ä£®
B£®½«´òµã¼ÆʱÆ÷½Óµ½µçÔ´µÄ¡°Ö±Á÷Êä³ö¡±ÉÏ£®
C£®ÓÃÌìƽ²â³öÖØ´¸µÄÖÊÁ¿£®
D£®ÏȽÓͨµçÔ´£¬ºóÊÍ·ÅÖ½´ø£¬´ò³öÒ»ÌõÖ½´ø£¬ÔÙ¸ü»»Ö½´øÖظ´¶à´Î£®
E£®Ñ¡ÔñÒ»ÌõºÏÊʵÄÖ½´ø£¬²âÁ¿Ö½´øÉÏijЩµã¼äµÄ¾àÀ룮
F£®¸ù¾Ý²âÁ¿µÄ½á¹û¼ÆËãÖØ´¸ÏÂÂä¹ý³ÌÖмõÉÙµÄÖØÁ¦ÊÆÄÜÊÇ·ñµÈÓÚÔö¼ÓµÄ¶¯ÄÜ£®
ÆäÖвÙ×÷²»µ±µÄ²½ÖèÊÇ
B
B
£¬·Ç±ØÐèµÄ²½ÖèÊÇ
C
C
£®
£¨3£©Èç¹ûÒÔv2Ϊ×ÝÖᣬÒÔhΪºáÖᣬ¸ù¾ÝʵÑéÊý¾Ý»æ³öµÄv2-hͼÏ󣬸ÃͼÏóÊÇ
¹ýÔ­µãµÄÇãбֱÏß
¹ýÔ­µãµÄÇãбֱÏß
£¬¸ÃͼÏßµÄбÂʵÈÓÚ
2g
2g
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©Èçͼ1ʾ£¬½«´òµã¼ÆʱÆ÷¹Ì¶¨ÔÚÌú¼Ų̈ÉÏ£¬Ê¹ÖØÎï´ø¶¯Ö½´ø´Ó¾²Ö¹¿ªÊ¼×ÔÓÉÏÂÂ䣬ÀûÓôË×°ÖÿÉÒԲⶨÖØÁ¦ºÍËٶȣ®

¢ÙËùÐèÆ÷²ÄÓдòµã¼ÆʱÆ÷£¨´øµ¼Ïߣ©¡¢Ö½´ø¡¢¸´Ð´Ö½¡¢´øÌú¼ÐµÄÌú¼Ų̈ºÍ´ø¼Ð×ÓµÄÖØÎ´ËÍ⻹Ðè
D
D
£¨Ìî×Öĸ´úºÅ£©ÖеÄÆ÷²Ä£®
A£®Ö±Á÷µçÔ´¡¢Ììƽ¼°íÀÂë     B£®Ö±Á÷µçÔ´¡¢ºÁÃ׿̶ȳß
C£®½»Á÷µçÔ´¡¢Ììƽ¼°íÀÂë     D£®½»Á÷µçÔ´¡¢ºÁÃ׿̶ȳß
¢Úͨ¹ý×÷ͼÏóµÄ·½·¨¿ÉÒÔÌÞ³ýżȻÎó²î½Ï´óµÄÊý¾Ý£¬Ìá¸ßʵÑéµÄ׼ȷ³Ì¶È£®ÎªÊ¹Í¼ÏßµÄбÂʵÈÓÚÖØÁ¦¼ÓËٶȣ¬³ý×÷v-tͼÏóÍ⣬»¹¿É×÷
v
2
 
2
-h
v
2
 
2
-h
ͼÏó£¬ÆäбÂʱíʾµÄÊÇ
ÖØÁ¦¼ÓËÙ¶Èg
ÖØÁ¦¼ÓËÙ¶Èg
£®
£¨2£©Ä³Ñо¿ÐÔѧϰС×éΪÁËÖÆ×÷Ò»ÖÖ´«¸ÐÆ÷£¬ÐèҪѡÓÃÒ»µçÆ÷Ôª¼þ£®Í¼2¸ÃµçÆ÷Ôª¼þµÄ·ü°²ÌØÐÔÇúÏߣ¬ÓÐͬѧ¶ÔÆäÌá³öÖÊÒÉ£¬ÏÈÐè½øÒ»²½ÑéÖ¤¸Ã·ü°²ÌØÐÔÇúÏߣ¬ÊµÑéÊÒ±¸ÓÐÏÂÁÐÆ÷²Ä£º
Æ÷²Ä£¨´úºÅ£© ¹æ¸ñ
µçÁ÷±íA1 Á¿³Ì0¡«50mA£¬ÄÚ×èԼΪ50¦¸
µçÁ÷±íA2 Á¿³Ì0-¡«200mA£¬ÄÚ×èԼΪ10¦¸
µçѹ±íV1 Á¿³Ì0¡«3V£¬ÄÚ×èԼΪ10k¦¸
µçѹ±íV2 Á¿³Ì0¡«15¦¸£¬ÄÚ×èԼΪ25k¦¸
»¬¶¯±ä×èÆ÷R1 ×èÖµ·¶Î§0¡«15¦¸£¬ÔÊÐí×î´óµçÁ÷1A
»¬¶¯±ä×èÆ÷R2 ×èÖµ·¶Î§0¡«1k¦¸£¬ÔÊÐí×î´óµçÁ÷100mA
Ö±Á÷µçÔ´E Êä³öµçѹ6V£¬ÄÚ×è²»¼Æ
¿ª¹ØS
µ¼ÏßÈô¸É
ΪÌá¸ßʵÑé½á¹ûµÄ׼ȷ³Ì¶È£¬µçÁ÷±íӦѡÓÃ
A2
A2
£»µçѹ±íӦѡÓÃ
V1
V1
£»»¬¶¯±ä×èÆ÷ӦѡÓÃ
R1
R1
£®£¨ÒÔÉϾùÌîÆ÷²Ä´úºÅ£©
¢ÚΪ´ïµ½ÉÏÊöÄ¿µÄ£¬ÇëÔÚͼ3¿òÄÚ»­³öÕýÈ·µÄʵÑéµç·ԭÀíͼ£¬²¢±êÃ÷ËùÓÃÆ÷²ÄµÄ´úºÅ£®
¢ÛÈô·¢ÏÖʵÑé²âµÃµÄ·ü°²ÌØÐÔÇúÏßÓëͼÖÐÇúÏß»ù±¾ÎǺϣ¬Çë˵Ã÷¸Ã·ü°²ÌØÐÔÇúÏßÓëСµçÖéµÄ·ü°²ÌØÐÔÇúÏßÓкÎÒìͬµã£¿
Ïàͬµã£º
ͨ¹ý¸ÃÔª¼þµÄµçÁ÷ÓëµçѹµÄ±ä»¯¹ØϵºÍͨ¹ýСµçÖéµÄµçÁ÷ÓëµçѹµÄ±ä»¯¹Øϵ¶¼ÊÇ·ÇÏßÐÔ¹Øϵ
ͨ¹ý¸ÃÔª¼þµÄµçÁ÷ÓëµçѹµÄ±ä»¯¹ØϵºÍͨ¹ýСµçÖéµÄµçÁ÷ÓëµçѹµÄ±ä»¯¹Øϵ¶¼ÊÇ·ÇÏßÐÔ¹Øϵ
£¬²»Í¬µã£º
¸ÃÔª¼þµÄµç×èËæµçѹµÄÔö´ó¶ø¼õС£¬¶øСµçÖéµÄµç×èÖµËæµçѹµÄÉý¸ß¶øÔö´ó
¸ÃÔª¼þµÄµç×èËæµçѹµÄÔö´ó¶ø¼õС£¬¶øСµçÖéµÄµç×èÖµËæµçѹµÄÉý¸ß¶øÔö´ó
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ1Ëùʾ£¬ÓÃÂäÌå·¨ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑ飬
£¨1£©Ä³Í¬Ñ§ÁоÙÁ˸ÃʵÑéµÄ¼¸¸ö²½Ö裬ÆäÖв»ÕýÈ·»òûÓбØÒªµÄÊÇ
BCE
BCE
£¨ÌîÐòºÅ¼´¿É£©
A¡¢ÕýÈ·°²×°ºÃʵÑéÒÇÆ÷
B¡¢½«´òµã¼ÆʱÆ÷½Óµ½Ñ§ÉúµçÔ´µÄµÍѹֱÁ÷Êä³ö¶Ë
C¡¢ÓÃÌìƽ²â³öÏÂÂäÖØÎïµÄÖÊÁ¿£¬ÇÒ¾«È·µ½0.01kg
D¡¢ÊµÑéÖУ¬ÊÍ·ÅÖ½´øÇ°ÓüÐ×Ó¼Ðסֽ´ø²»ÉÏÏÂÒƶ¯£¬ÇÒ±£Ö¤Ö½´øÊúÖ±
E¡¢ÎªÁËʹ´ò³öÀ´µÄµÚÒ»¸öµãÇåÎú£¬Ó¦¸ÃÏÈÊÍ·ÅÖ½´øÔÙ½Óͨ´òµã¼ÆʱÆ÷µçÔ´¿ª¹Ø

£¨2£©ÔÚʵÑéÖдòµã¼ÆʱÆ÷Ëù½Ó½»Á÷µçƵÂÊΪ50Hz£¬µ±µØÖØÁ¦¼ÓËÙ¶Èg=9.8m/s2£®ÊµÑéÑ¡ÓõÄÖØÎïÖÊÁ¿Îªm£¬Ö½´øÉÏ´òµã¼ÆʱÆ÷´òϵÄÁ¬Ðø¼ÆʱµãA¡¢B¡¢C¡¢Dµ½OµãµÄ¾àÀëÈçͼ2Ëùʾ£¬ÔòÖØÎï´ÓOµãÔ˶¯µ½Cµã£¬ÖØÁ¦ÊÆÄܼõÉÙ
2.74m
2.74m
J£¬ÖØÎï¾­¹ýCµãʱµÄËÙ¶ÈΪ
2.33
2.33
 m/s£¬Æ䶯ÄܵÄÔö¼ÓΪ
2.71m
2.71m
J£®£¨È¡3λÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸