µ¯»ÉÊܵ½À­Á¦Ô½´ó£¬µ¯»ÉÉ쳤Á¿¾ÍÔ½´ó£¬Ä³Í¬Ñ§ÔÚÊúÖ±Ðü¹ÒµÄµ¯»ÉϹҹ³Â룬̽¾¿À­Á¦ºÍµ¯»ÉÉ쳤Á¿µÄ¹Øϵ£®±íÖÐÊý¾ÝÊǸÃͬѧÔÚµ¯»Éµ¯ÐÔÏÞ¶ÈÄڼǼµÄʵÑéÊý¾Ý£®£¨g=10N/kg£©
¹³ÂëÖÊÁ¿m/g0306090120150
µ¯»É×ܳ¤¶Èl/cm6.07.28.49.610.812.0
£¨1£©¸ù¾ÝʵÑéÊý¾ÝÔÚÈçͼËùʾ×ø±êϵÖÐ×÷³öÀ­Á¦F¸úµ¯»ÉÉ쳤Á¿xµÄ¹ØϵͼÏ󣨵¯»ÉµÄÉ쳤Á¿µÈÓÚ×ܳ¤¼õÈ¥µ¯»Éδ¹Ò¹³ÂëʱµÄ³¤¶È£©
£¨2£©¸ù¾ÝͼÏóµÃµ½µ¯»ÉµÄ¾¢¶ÈϵÊýÊÇ______N/m£®

½â£º£¨1£©F1=m1g=0.03kg¡Á10N/kg=0.3N£»X1=L1-L0=7.2cm-6.0cm=1.2cm
F2=m2g=0.06kg¡Á10N/kg=0.6N£»X2=L2-L0=8.4cm-6.0cm=2.4cm
F3=m3g=0.09kg¡Á10N/kg=0.9N£»X3=L3-L0=9.8cm-6.0cm=3.8cm
F4=m4g=0.12kg¡Á10N/kg=1.2N£»X4=L4-L0=10.8cm-6.0cm=4.8cm
F5=m5g=0.15kg¡Á10N/kg=1.5N£»X5=L5-L0=12.0cm-6.0cm=6.0cm
²ÅÓÃÃèµã·¨»­³öͼÏó£¬ÈçÓÒͼ£®
£¨2£©Í¼ÏßµÄбÂÊk=£®Ôòµ¯»ÉµÄ¾¢¶ÈϵÊýΪ25N/m£®
¹Ê´ð°¸Îª£º£¨1£©ÈçͼËùʾ£¬£¨2£©25£®
·ÖÎö£º£¨1£©ÓÃÃèµã·¨»­³öͼÏó£¬Óù«Ê½·Ö±ð¼ÆËã³öÿһ´ÎµÄÀ­Á¦F=G=mg£®´Ó±í¸ñÖеÄÊý¾Ý¿ÉÒÔ¿´³öµ¯»ÉµÄÔ­³¤L0=6cm£¬ÔÙ·Ö±ð¼ÆËã³öÿһ´ÎÏà¶ÔÓ¦µÄµ¯»ÉµÄÉ쳤Á¿X=L-L0£»
£¨2£©¸ù¾Ýµ¯»ÉµÄÉ쳤ÓëËùÊܵÄÀ­Á¦³ÉÕý±È¹Øϵ£¬Í¨¹ýͼÏßµÄбÂʵ¯»ÉµÄ¾¢¶ÈϵÊý£®
µãÆÀ£º´ËÌâÖ÷Òª¿¼²éѧÉú¶ÔÊý¾ÝµÄ´¦ÀíÄÜÁ¦ºÍ¹éÄÉ¡¢·ÖÎö¡¢×ܽáÄÜÁ¦£¬ÅàÑøѧÉúÓ¦ÓÃÃèµã·¨»­Í¼ÏóµÄÄÜÁ¦£®ÒÔ¼°Ó¦ÓÃÎïÀí֪ʶ½â¾öʵ¼ÊÎÊÌâµÄÄÜÁ¦£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

µ¯»ÉÊܵ½À­Á¦Ô½´ó£¬µ¯»ÉÉ쳤Á¿¾ÍÔ½´ó£¬Ä³Í¬Ñ§ÔÚÊúÖ±Ðü¹ÒµÄµ¯»ÉϹҹ³Â룬̽¾¿À­Á¦ºÍµ¯»ÉÉ쳤Á¿µÄ¹Øϵ£®±íÖÐÊý¾ÝÊǸÃͬѧÔÚµ¯»Éµ¯ÐÔÏÞ¶ÈÄڼǼµÄʵÑéÊý¾Ý£®£¨g=10N/kg£©
¹³ÂëÖÊÁ¿m/g 0 30 60 90 120 150
µ¯»É×ܳ¤¶Èl/cm 6.0 7.2 8.4 9.6 10.8 12.0
£¨1£©¸ù¾ÝʵÑéÊý¾ÝÔÚÈçͼËùʾ×ø±êϵÖÐ×÷³öÀ­Á¦F¸úµ¯»ÉÉ쳤Á¿xµÄ¹ØϵͼÏ󣨵¯»ÉµÄÉ쳤Á¿µÈÓÚ×ܳ¤¼õÈ¥µ¯»Éδ¹Ò¹³ÂëʱµÄ³¤¶È£©
£¨2£©¸ù¾ÝͼÏóµÃµ½µ¯»ÉµÄ¾¢¶ÈϵÊýÊÇ
25
25
N/m£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

µ¯»ÉÊܵ½À­Á¦Ô½´ó£¬µ¯»ÉÉ쳤Á¿¾ÍÔ½´ó£¬Ä³Í¬Ñ§ÔÚÊúÖ±Ðü¹ÒµÄµ¯»ÉϹҹ³Â룬̽¾¿À­Á¦ºÍµ¯»ÉÉ쳤Á¿µÄ¹Øϵ£®±íÖÐÊý¾ÝÊǸÃͬѧÔÚµ¯»Éµ¯ÐÔÏÞ¶ÈÄڼǼµÄʵÑéÊý¾Ý£®£¨g=10N/kg£©
¹³ÂëÖÊÁ¿m/g 0 30 60 90 120 150
µ¯»É×ܳ¤¶Èl/cm 6.0 7.2 8.4 9.6 10.8 12.0
£¨1£©¸ù¾ÝʵÑéÊý¾ÝÔÚÈçͼËùʾ×ø±êϵÖÐ×÷³öÀ­Á¦F¸úµ¯»ÉÉ쳤Á¿xµÄ¹ØϵͼÏ󣨵¯»ÉµÄÉ쳤Á¿µÈÓÚ×ܳ¤¼õÈ¥µ¯»Éδ¹Ò¹³ÂëʱµÄ³¤¶È£©
£¨2£©¸ù¾ÝͼÏóµÃµ½µ¯»ÉµÄ¾¢¶ÈϵÊýÊÇ______N/m£®
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012-2013ѧÄêËÄ´¨Ê¡ÃàÑôÊи¢³ÇÇøÄÏɽÖÐѧ¸ßÈý£¨ÉÏ£©ÎïÀíÁãÕïÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

µ¯»ÉÊܵ½À­Á¦Ô½´ó£¬µ¯»ÉÉ쳤Á¿¾ÍÔ½´ó£¬Ä³Í¬Ñ§ÔÚÊúÖ±Ðü¹ÒµÄµ¯»ÉϹҹ³Â룬̽¾¿À­Á¦ºÍµ¯»ÉÉ쳤Á¿µÄ¹Øϵ£®±íÖÐÊý¾ÝÊǸÃͬѧÔÚµ¯»Éµ¯ÐÔÏÞ¶ÈÄڼǼµÄʵÑéÊý¾Ý£®£¨g=10N/kg£©
¹³ÂëÖÊÁ¿m/g306090120150
µ¯»É×ܳ¤¶Èl/cm6.07.28.49.610.812.0
£¨1£©¸ù¾ÝʵÑéÊý¾ÝÔÚÈçͼËùʾ×ø±êϵÖÐ×÷³öÀ­Á¦F¸úµ¯»ÉÉ쳤Á¿xµÄ¹ØϵͼÏ󣨵¯»ÉµÄÉ쳤Á¿µÈÓÚ×ܳ¤¼õÈ¥µ¯»Éδ¹Ò¹³ÂëʱµÄ³¤¶È£©
£¨2£©¸ù¾ÝͼÏóµÃµ½µ¯»ÉµÄ¾¢¶ÈϵÊýÊÇ______N/m£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸