ÌâÄ¿ÄÚÈÝ
ʵÑéÓë×÷ͼ
£¨1£©ÈçͼaËùʾ£¬ÓÃÌú¼Ų̈¡¢µ¯»ÉºÍ¶à¸öÒÑÖªÖÊÁ¿ÇÒÖÊÁ¿ÏàµÈµÄ¹³Â룬̽¾¿ÔÚµ¯ÐÔÏÞ¶ÈÄÚµ¯»Éµ¯Á¦Ó뵯»ÉÉ쳤³¤¶ÈµÄ¹ØϵʵÑ飮
¢ÙΪÍê³ÉʵÑ飬»¹ÐèÒªµÄʵÑéÆ÷²ÄÓУº______£»
¢ÚʵÑéÖÐÐèÒª²âÁ¿µÄÎïÀíÁ¿ÓУº______£»
¢ÛͼbÊǵ¯»ÉËùÊܵ¯Á¦FÓ뵯»ÉÉ쳤³¤¶ÈxµÄF-xͼÏߣ¬ÓÉ´Ë¿ÉÇó³öµ¯»ÉµÄ¾¢¶ÈϵÊýΪ______£®
£¨2£©Ä³Í¬Ñ§×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑ飬Ö÷Òª²½ÖèÈçÏ£º
A£®ÔÚ×ÀÃæÉÏ·ÅÒ»¿é·½Ä¾°å£¬ÔÚ·½Ä¾°åÉÏÆÌÒ»ÕÅ°×Ö½£¬ÓÃͼ¶¤°Ñ°×Ö½¶¤ÔÚ·½Ä¾°åÉÏ£»
B£®ÓÃͼ¶¤°ÑÏðƤÌõµÄÒ»¶Ë¹Ì¶¨£¬ÁíÒ»¶ËË©ÉÏÁ½ÌõϸÉþÌ×£»
C£®ÓÃÁ½Ö»µ¯»É³Óͨ¹ýϸÉþ»¥³É½Ç¶ÈµØÀÏðƤÌõ£¬Ê¹½áµã´ïµ½Ä³Ò»Î»ÖÃO£¬¼ÇÏÂOµãµÄλÖ㬼ǼÏÂÁ½¸öµ¯»É³ÓµÄʾÊý£»
D£®°´Ñ¡ºÃµÄ±ê¶È£¬ÓÃǦ±ÊºÍ¿Ì¶È³ß×÷³öÁ½¸öµ¯»É²âÁ¦¼ÆµÄÀÁ¦F1ºÍF2µÄͼʾ£¬²¢ÓÃƽÐÐËıßÐζ¨Ôò×÷³öºÏÁ¦F¡ä£»![](http://thumb.1010pic.com/pic2/upload/papers/20140610/2014061022404684020322.png)
E¡¢ÓÃÒ»¸öµ¯»É²âÁ¦¼Æ£¬Í¨¹ýϸÉþÌ×ÀÏðƤÌõʹÆäÉ쳤£¬¶Á³öµ¯»É²âÁ¦¼ÆµÄʾÊý£¬¼ÇÏÂϸÉþµÄ·½Ïò£¬°´Í¬Ò»±ê¶È×÷³öÕâ¸öÁ¦µÄͼʾF£»
F£®±È½ÏÁ¦F¡äÓëFµÄ´óСºÍ·½Ïò£¬µÃ³ö½áÂÛ£®
ÉÏÊö²½ÖèÖУ¬ÓÐÖØÒªÒÅ©ÄÚÈݵIJ½ÖèÐòºÅÊÇ______ºÍ______£»ÒÅ©ÄÚÈÝ·Ö±ðÊÇ______
ºÍ______£®
£¨3£©Èçͼc£¬Ä³Í¬Ñ§ÔÚ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑéʱ£¬ÓÃA¡¢BÁ½¸öµ¯»É³ÓͬʱÀ½áµãµ½OµãλÖ㬴ËʱÁ½µ¯»É³ÓµÄ¶ÁÊý·Ö±ðÊÇFA=5.70NºÍFB=4.50N£®ÒÔ1cm±íʾ1NµÄ±ÈÀý£¬ÓÃ×÷ͼ·¨Çó³öFA¡¢FBµÄºÏÁ¦FµÄ´óСºÍ·½Ïò£¨±£Áô×÷ͼºÛ¼££©£¬ÆäºÏÁ¦FµÄ´óСΪ______£®
£¨1£©ÈçͼaËùʾ£¬ÓÃÌú¼Ų̈¡¢µ¯»ÉºÍ¶à¸öÒÑÖªÖÊÁ¿ÇÒÖÊÁ¿ÏàµÈµÄ¹³Â룬̽¾¿ÔÚµ¯ÐÔÏÞ¶ÈÄÚµ¯»Éµ¯Á¦Ó뵯»ÉÉ쳤³¤¶ÈµÄ¹ØϵʵÑ飮
¢ÙΪÍê³ÉʵÑ飬»¹ÐèÒªµÄʵÑéÆ÷²ÄÓУº______£»
¢ÚʵÑéÖÐÐèÒª²âÁ¿µÄÎïÀíÁ¿ÓУº______£»
¢ÛͼbÊǵ¯»ÉËùÊܵ¯Á¦FÓ뵯»ÉÉ쳤³¤¶ÈxµÄF-xͼÏߣ¬ÓÉ´Ë¿ÉÇó³öµ¯»ÉµÄ¾¢¶ÈϵÊýΪ______£®
£¨2£©Ä³Í¬Ñ§×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑ飬Ö÷Òª²½ÖèÈçÏ£º
A£®ÔÚ×ÀÃæÉÏ·ÅÒ»¿é·½Ä¾°å£¬ÔÚ·½Ä¾°åÉÏÆÌÒ»ÕÅ°×Ö½£¬ÓÃͼ¶¤°Ñ°×Ö½¶¤ÔÚ·½Ä¾°åÉÏ£»
B£®ÓÃͼ¶¤°ÑÏðƤÌõµÄÒ»¶Ë¹Ì¶¨£¬ÁíÒ»¶ËË©ÉÏÁ½ÌõϸÉþÌ×£»
C£®ÓÃÁ½Ö»µ¯»É³Óͨ¹ýϸÉþ»¥³É½Ç¶ÈµØÀÏðƤÌõ£¬Ê¹½áµã´ïµ½Ä³Ò»Î»ÖÃO£¬¼ÇÏÂOµãµÄλÖ㬼ǼÏÂÁ½¸öµ¯»É³ÓµÄʾÊý£»
D£®°´Ñ¡ºÃµÄ±ê¶È£¬ÓÃǦ±ÊºÍ¿Ì¶È³ß×÷³öÁ½¸öµ¯»É²âÁ¦¼ÆµÄÀÁ¦F1ºÍF2µÄͼʾ£¬²¢ÓÃƽÐÐËıßÐζ¨Ôò×÷³öºÏÁ¦F¡ä£»
![](http://thumb.1010pic.com/pic2/upload/papers/20140610/2014061022404684020322.png)
E¡¢ÓÃÒ»¸öµ¯»É²âÁ¦¼Æ£¬Í¨¹ýϸÉþÌ×ÀÏðƤÌõʹÆäÉ쳤£¬¶Á³öµ¯»É²âÁ¦¼ÆµÄʾÊý£¬¼ÇÏÂϸÉþµÄ·½Ïò£¬°´Í¬Ò»±ê¶È×÷³öÕâ¸öÁ¦µÄͼʾF£»
F£®±È½ÏÁ¦F¡äÓëFµÄ´óСºÍ·½Ïò£¬µÃ³ö½áÂÛ£®
ÉÏÊö²½ÖèÖУ¬ÓÐÖØÒªÒÅ©ÄÚÈݵIJ½ÖèÐòºÅÊÇ______ºÍ______£»ÒÅ©ÄÚÈÝ·Ö±ðÊÇ______
ºÍ______£®
£¨3£©Èçͼc£¬Ä³Í¬Ñ§ÔÚ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑéʱ£¬ÓÃA¡¢BÁ½¸öµ¯»É³ÓͬʱÀ½áµãµ½OµãλÖ㬴ËʱÁ½µ¯»É³ÓµÄ¶ÁÊý·Ö±ðÊÇFA=5.70NºÍFB=4.50N£®ÒÔ1cm±íʾ1NµÄ±ÈÀý£¬ÓÃ×÷ͼ·¨Çó³öFA¡¢FBµÄºÏÁ¦FµÄ´óСºÍ·½Ïò£¨±£Áô×÷ͼºÛ¼££©£¬ÆäºÏÁ¦FµÄ´óСΪ______£®
£¨1£©¢ÙʵÑéÐèÒª²âÁ¿µ¯»ÉÉ쳤µÄ³¤¶È£¬¹ÊÐèÒª¿Ì¶È³ß£®
¢ÚʵÑéÖÐÐèÒª²âÁ¿£¨¼Ç¼£©µÄÎïÀíÁ¿ÓУºµ¯»ÉµÄÔ³¤¡¢µ¯»ÉµÄÔ³¤¡¢µ¯»ÉËùÊÜÍâÁ¦Óë¶ÔÓ¦µÄÉ쳤Á¿£¨»òÓ뵯»É¶ÔÓ¦µÄ³¤¶È£©
¢ÛͼÏßµÄÎïÀíÒâÒåÊDZíÃ÷µ¯»ÉµÄµ¯Á¦´óСºÍµ¯»ÉÉ쳤Á¿´óС³ÉÕý±È£®
ÓÉk=
=200N/m£®
£¨2£©±¾ÊµÑéΪÁËÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò£¬²ÉÓõķ½·¨ÊÇ×÷Á¦µÄͼʾ·¨£¬×÷³öºÏÁ¦ºÍÀíÂÛÖµºÍʵ¼ÊÖµ£¬È»ºó½øÐбȽϣ¬µÃ³ö½á¹û£®ËùÒÔ£¬ÊµÑéʱ£¬³ý¼Ç¼µ¯»É³ÓµÄʾÊýÍ⣬»¹Òª¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£¬ÒÔ±ãÈ·¶¨Á½¸öÀÁ¦µÄ·½Ïò£¬ÕâÑù²ÅÄÜ×÷³öÀÁ¦µÄͼʾ£¬²½ÖèCÖÐδ¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£»²½ÖèEÖÐδ˵Ã÷°ÑÏðƤÌõµÄ½áµãÀµ½Î»ÖÃO£®
£¨3£©¸ù¾ÝÁ¦µÄƽÐÐËıßÐζ¨Ôò»Í¼ÈçÏÂËùʾ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140610/201406102240469183734.png)
ÓÉͼµÃ³öºÏÁ¦F=7.7N£®
¹Ê´ð°¸Îª£º£¨1£©¢Ù¿Ì¶È³ß£¬¢Úµ¯»ÉµÄÔ³¤¡¢µ¯»ÉËùÊÜÍâÁ¦Óë¶ÔÓ¦µÄÉ쳤Á¿£¨»òÓ뵯»É¶ÔÓ¦µÄ³¤¶È£©£»¢Û200N/m£®
£¨2£©C£¬E£¬CÖÐδ¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£¬EÖÐδ˵Ã÷°ÑÏðƤÌõµÄ½áµãÀµ½Î»ÖÃO£®
£¨3£©7.8N£®
¢ÚʵÑéÖÐÐèÒª²âÁ¿£¨¼Ç¼£©µÄÎïÀíÁ¿ÓУºµ¯»ÉµÄÔ³¤¡¢µ¯»ÉµÄÔ³¤¡¢µ¯»ÉËùÊÜÍâÁ¦Óë¶ÔÓ¦µÄÉ쳤Á¿£¨»òÓ뵯»É¶ÔÓ¦µÄ³¤¶È£©
¢ÛͼÏßµÄÎïÀíÒâÒåÊDZíÃ÷µ¯»ÉµÄµ¯Á¦´óСºÍµ¯»ÉÉ쳤Á¿´óС³ÉÕý±È£®
ÓÉk=
¡÷F |
¡÷x |
£¨2£©±¾ÊµÑéΪÁËÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò£¬²ÉÓõķ½·¨ÊÇ×÷Á¦µÄͼʾ·¨£¬×÷³öºÏÁ¦ºÍÀíÂÛÖµºÍʵ¼ÊÖµ£¬È»ºó½øÐбȽϣ¬µÃ³ö½á¹û£®ËùÒÔ£¬ÊµÑéʱ£¬³ý¼Ç¼µ¯»É³ÓµÄʾÊýÍ⣬»¹Òª¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£¬ÒÔ±ãÈ·¶¨Á½¸öÀÁ¦µÄ·½Ïò£¬ÕâÑù²ÅÄÜ×÷³öÀÁ¦µÄͼʾ£¬²½ÖèCÖÐδ¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£»²½ÖèEÖÐδ˵Ã÷°ÑÏðƤÌõµÄ½áµãÀµ½Î»ÖÃO£®
£¨3£©¸ù¾ÝÁ¦µÄƽÐÐËıßÐζ¨Ôò»Í¼ÈçÏÂËùʾ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140610/201406102240469183734.png)
ÓÉͼµÃ³öºÏÁ¦F=7.7N£®
¹Ê´ð°¸Îª£º£¨1£©¢Ù¿Ì¶È³ß£¬¢Úµ¯»ÉµÄÔ³¤¡¢µ¯»ÉËùÊÜÍâÁ¦Óë¶ÔÓ¦µÄÉ쳤Á¿£¨»òÓ뵯»É¶ÔÓ¦µÄ³¤¶È£©£»¢Û200N/m£®
£¨2£©C£¬E£¬CÖÐδ¼ÇÏÂÁ½ÌõϸÉþµÄ·½Ïò£¬EÖÐδ˵Ã÷°ÑÏðƤÌõµÄ½áµãÀµ½Î»ÖÃO£®
£¨3£©7.8N£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿