ÌâÄ¿ÄÚÈÝ
ÒÔÏÂÊÇһλͬѧ×ö¡°Ì½¾¿ÐαäÓ뵯Á¦µÄ¹Øϵ¡±µÄʵÑé¡£
£¨1£©ÏÂÁеÄʵÑé²½ÖèÊÇÕâλͬѧ׼±¸Íê³ÉµÄ£¬ÇëÄã°ïÕâλͬѧ°´²Ù×÷µÄÏȺó˳Ðò£¬ÓÃ×ÖĸÅÅÁгöÀ´ÊÇ£º ¡£
A¡¢ÒÔµ¯»ÉÉ쳤Á¿Îªºá×ø±ê£¬ÒÔµ¯Á¦Îª×Ý×ø±ê£¬Ãè³ö¸÷×éÊý¾Ý£¨x£¬F£©¶ÔÓ¦µÄµã£¬²¢ÓÃƽ»¬µÄÇúÏßÁ¬½áÆðÀ´¡£
B¡¢¼Çϵ¯»É²»¹Ò¹³Âëʱ£¬Æä϶ËÔڿ̶ȳßÉϵĿ̶ÈL0
C¡¢½«Ìú¼Ų̈¹Ì¶¨ÓÚ×À×ÓÉÏ£¬²¢½«µ¯»ÉµÄÒ»¶ËϵÓÚºáÁºÉÏ£¬ÔÚµ¯»É¸½½üÊúÖ±¹Ì¶¨Ò»¿Ì¶È³ß
D¡¢ÒÀ´ÎÔÚµ¯»É϶˹ÒÉÏ1¸ö¡¢2¸ö¡¢3¸ö¡¢4¸ö¡¡¹³Â룬²¢·Ö±ð¼ÇϹ³Â뾲ֹʱ£¬µ¯»É϶ËËù¶ÔÓ¦µÄ¿Ì¶È²¢¼Ç¼ÔÚ±í¸ñÄÚ£¬È»ºóȡϹ³Âë
E¡¢ÒÔµ¯»ÉÉ쳤Á¿Îª×Ô±äÁ¿£¬Ð´³öµ¯Á¦Ó뵯»ÉÉ쳤Á¿µÄ¹Øϵʽ.
F¡¢½âÊͺ¯Êý±í´ïʽÖг£ÊýµÄÎïÀíÒâÒå.
£¨2£©Ï±íÊÇÕâλͬѧ̽¾¿µ¯Á¦´óСÓ뵯»ÉÉ쳤Á¿Ö®¼äµÄ¹ØϵËù²âµÄ¼¸×éÊý¾Ý£º
µ¯Á¦£¨F/N£© |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
µ¯»ÉÔÀ´³¤¶È£¨L0/cm£© |
15 |
15 |
15 |
15 |
15 |
µ¯»ÉºóÀ´³¤¶È£¨L/cm£© |
16.0 |
17.1 |
18.0 |
18.9 |
20 |
µ¯»ÉÉ쳤Á¿£¨x/cm£© |
1.0 |
2.1 |
3.0 |
3.9 |
5.0 |
¢Ù¸ù¾ÝÉϱíµÄÊý¾ÝÔÚÓÒÏÂͼµÄ×ø±êÖÐ×÷³öF-xͼÏß¡£
¢Úд³öÇúÏߵĺ¯Êý±í´ïʽ¡££¨xÓÃcm×÷µ¥Î»£©£º
¢Ûº¯Êý±í´ïʽÖг£ÊýµÄÎïÀíÒâÒ壺
£¨1£©ÊµÑé²½ÖèÅÅÁУº C B D A E F
£¨2£©¢Ù ͼÏßÂÔ¡£
¢ÚÇúÏߵĺ¯ÊýʽΪ F = 0.5x
¢Û±íʾʹµ¯»ÉÿÉ쳤»òѹËõ0.01m£¨1cm£©ËùÐèµÄÀÁ¦£¬´óСΪ0.5N
¡¾½âÎö¡¿£¨1£©ÊµÑé²½ÖèÅÅÁУº C B D A E F
£¨2£©¢Ù ͼÏßÂÔ¡£
¢ÚÇúÏߵĺ¯ÊýʽΪ F = 0.5x
¢Û±íʾʹµ¯»ÉÿÉ쳤»òѹËõ0.01m£¨1cm£©ËùÐèµÄÀÁ¦£¬´óСΪ0.5N¡£
