ÌâÄ¿ÄÚÈÝ

£¨1£©Òª²â¶¨¸öÈ˵ķ´Ó¦Ëٶȣ¬ÈçͼËùʾ£¬ÇëÄãµÄͬѧÓÃÊÖÖ¸ÄÃ×ÅÒ»°Ñ³¤30 cmµÄÖ±³ß£¬ËûµÄÊÖ×¥ÔÚ28cm´¦£¬ÄãµÄÊÖºòÔÚ2cm´¦£¬µ±ËûËÉ¿ªÖ±³ß£¬Äã¼ûµ½Ö±³ßÏÂÂ䣬Á¢¼´ÓÃÊÖץסֱ³ß£¬¼Ç¼ץס´¦µÄÊý¾Ý£¬Öظ´ÒÔÉϲ½Öè¶à´Î¡£ÏÖÓÐA¡¢B¡¢CÈýλͬѧÏ໥²â¶¨·´Ó¦Ëٶȵõ½µÄÊý¾Ý£¨µ¥Î»£ºcm£¬ÖØÁ¦¼ÓËÙ¶ÈgÈ¡10m/s2£©ÕâÈýλͬѧÖз´Ó¦ËÙ¶È×î¿ìµÄÊÇ__ ___ͬѧ£¬ËûµÄ×î¿ì·´Ó¦Ê±¼äΪ__ __s¡£

µÚÒ»´Î

µÚ¶þ´Î

µÚÈý´Î

A

27

26

28

B

29

26

23

C

26

24

22

 

£¨2£©ÏÂÁÐÓйظßÖÐÎïÀíÁ¦Ñ§ÊµÑéµÄ˵·¨ÖУ¬²»ÕýÈ·µÄÒ»ÏîÊÇ  £¨      £©

       A£®ÔÚ¡°Ì½¾¿ºÏÁ¦µÄ·½·¨¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨

       B£®µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ4~6µÄµÍѹ½»Á÷µçÔ´

       C£®ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È

       D£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬Ò²ÒªÓõ½ÁËÖ½´øÎÊÌâµÄ´¦Àí·½·¨

£¨3£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿µ¯ÐÔÐαäÓëÍâÁ¦µÄ¹Øϵ¡±ÊµÑéʱ£¬½«Ò»Çᵯ»ÉÊúÖ±Ðü¹Ò²¢ÈÃÆä×ÔȻϴ¹£¬²â³öÆä×ÔÈ»³¤¶È£»È»ºóÔÚÆäϲ¿Ê©¼ÓÍâÁ¦£¬²â³öµ¯»ÉµÄ×ܳ¤¶È£¬¸Ä±äÍâÁ¦µÄ´óС£¬²â³ö¼¸×éÊý¾Ý£¬×÷³öÍâÁ¦Ó뵯»É×ܳ¤¶ÈµÄ¹ØϵͼÏßÈçͼ11Ëùʾ£¨ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐУ©£¬ÓÉͼ¿ÉÖª¸Ãµ¯»ÉµÄ×ÔÈ»³¤¶È               _____£»¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýΪ          

(1)C   0.2  (2)B   (3)5cm   150N/m

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
£¨1£©Òª²â¶¨¸öÈ˵ķ´Ó¦Ëٶȣ¬Èçͼ1Ëùʾ£¬ÇëÄãµÄͬѧÓÃÊÖÖ¸ÄÃ×ÅÒ»°Ñ³¤30cmµÄÖ±³ß£¬ËûµÄÊÖ×¥ÔÚ28cm´¦£¬ÄãµÄÊÖºòÔÚ2cm´¦£¬µ±ËûËÉ¿ªÖ±³ß£¬Äã¼ûµ½Ö±³ßÏÂÂ䣬Á¢¼´ÓÃÊÖץסֱ³ß£¬¼Ç¼ץס´¦µÄÊý¾Ý£¬Öظ´ÒÔÉϲ½Öè¶à´Î£®ÏÖÓÐA¡¢B¡¢CÈýλͬѧÏ໥²â¶¨·´Ó¦Ëٶȵõ½µÄÊý¾Ý£¨µ¥Î»£ºcm£¬ÖØÁ¦¼ÓËÙ¶ÈgÈ¡10m/s2£©
µÚÒ»´Î µÚ¶þ´Î µÚÈý´Î
A 27 26 28
B 29 26 23
C 26 24 22
ÕâÈýλͬѧÖз´Ó¦ËÙ¶È×î¿ìµÄÊÇ
C
C
ͬѧ£¬ËûµÄ×î¿ì·´Ó¦Ê±¼äΪ
0.2
0.2
s£®
£¨2£©ÏÂÁÐÓйظßÖÐÎïÀíÁ¦Ñ§ÊµÑéµÄ˵·¨ÖУ¬²»ÕýÈ·µÄÒ»ÏîÊÇ
B
B
£®
A£®ÔÚ¡°Ì½¾¿ºÏÁ¦µÄ·½·¨¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨
B£®µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ4¡«6VµÄµÍѹ½»Á÷µçÔ´N/m
C£®ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È
D£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬Ò²ÒªÓõ½ÁËÖ½´øÎÊÌâµÄ´¦Àí·½·¨
£¨3£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿µ¯ÐÔÐαäÓëÍâÁ¦µÄ¹Øϵ¡±ÊµÑéʱ£¬½«Ò»Çᵯ»ÉÊúÖ±Ðü¹Ò²¢ÈÃÆä×ÔȻϴ¹£¬²â³öÆä×ÔÈ»³¤¶È£»È»ºóÔÚÆäϲ¿Ê©¼ÓÍâÁ¦£¬²â³öµ¯»ÉµÄ×ܳ¤¶Èx£¬¸Ä±äÍâÁ¦FµÄ´óС£¬²â³ö¼¸×éÊý¾Ý£¬×÷³öÍâÁ¦FÓ뵯»É×ܳ¤¶ÈxµÄ¹ØϵͼÏßÈçͼ2Ëùʾ£¨ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐУ©£¬ÓÉͼ¿ÉÖª¸Ãµ¯»ÉµÄ×ÔÈ»³¤¶È
5
5
cm£»¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýΪ
150
150
N/m£®
£¨1£©Òª²â¶¨¸öÈ˵ķ´Ó¦Ëٶȣ¬Èçͼ1Ëùʾ£¬ÇëÄãµÄͬѧÓÃÊÖÖ¸ÄÃ×ÅÒ»°Ñ³¤30cmµÄÖ±³ß£¬ËûµÄÊÖ×¥ÔÚ28cm´¦£¬ÄãµÄÊÖºòÔÚ2cm´¦£¬µ±ËûËÉ¿ªÖ±³ß£¬Äã¼ûµ½Ö±³ßÏÂÂ䣬Á¢¼´ÓÃÊÖץסֱ³ß£¬¼Ç¼ץס´¦µÄÊý¾Ý£¬Öظ´ÒÔÉϲ½Öè¶à´Î£®ÏÖÓÐA¡¢B¡¢CÈýλͬѧÏ໥²â¶¨·´Ó¦Ëٶȵõ½µÄÊý¾Ý£¨µ¥Î»£ºcm£¬ÖØÁ¦¼ÓËÙ¶ÈgÈ¡10m/s2£©
µÚÒ»´ÎµÚ¶þ´ÎµÚÈý´Î
A272628
B292623
C262422
ÕâÈýλͬѧÖз´Ó¦ËÙ¶È×î¿ìµÄÊÇ    ͬѧ£¬ËûµÄ×î¿ì·´Ó¦Ê±¼äΪ    s£®
£¨2£©ÏÂÁÐÓйظßÖÐÎïÀíÁ¦Ñ§ÊµÑéµÄ˵·¨ÖУ¬²»ÕýÈ·µÄÒ»ÏîÊÇ    £®
A£®ÔÚ¡°Ì½¾¿ºÏÁ¦µÄ·½·¨¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨
B£®µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ4¡«6VµÄµÍѹ½»Á÷µçÔ´N/m
C£®ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È
D£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬Ò²ÒªÓõ½ÁËÖ½´øÎÊÌâµÄ´¦Àí·½·¨
£¨3£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿µ¯ÐÔÐαäÓëÍâÁ¦µÄ¹Øϵ¡±ÊµÑéʱ£¬½«Ò»Çᵯ»ÉÊúÖ±Ðü¹Ò²¢ÈÃÆä×ÔȻϴ¹£¬²â³öÆä×ÔÈ»³¤¶È£»È»ºóÔÚÆäϲ¿Ê©¼ÓÍâÁ¦£¬²â³öµ¯»ÉµÄ×ܳ¤¶Èx£¬¸Ä±äÍâÁ¦FµÄ´óС£¬²â³ö¼¸×éÊý¾Ý£¬×÷³öÍâÁ¦FÓ뵯»É×ܳ¤¶ÈxµÄ¹ØϵͼÏßÈçͼ2Ëùʾ£¨ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐУ©£¬ÓÉͼ¿ÉÖª¸Ãµ¯»ÉµÄ×ÔÈ»³¤¶È    cm£»¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýΪ    N/m£®
£¨1£©Òª²â¶¨¸öÈ˵ķ´Ó¦Ëٶȣ¬Èçͼ1Ëùʾ£¬ÇëÄãµÄͬѧÓÃÊÖÖ¸ÄÃ×ÅÒ»°Ñ³¤30cmµÄÖ±³ß£¬ËûµÄÊÖ×¥ÔÚ28cm´¦£¬ÄãµÄÊÖºòÔÚ2cm´¦£¬µ±ËûËÉ¿ªÖ±³ß£¬Äã¼ûµ½Ö±³ßÏÂÂ䣬Á¢¼´ÓÃÊÖץסֱ³ß£¬¼Ç¼ץס´¦µÄÊý¾Ý£¬Öظ´ÒÔÉϲ½Öè¶à´Î£®ÏÖÓÐA¡¢B¡¢CÈýλͬѧÏ໥²â¶¨·´Ó¦Ëٶȵõ½µÄÊý¾Ý£¨µ¥Î»£ºcm£¬ÖØÁ¦¼ÓËÙ¶ÈgÈ¡10m/s2£©
µÚÒ»´ÎµÚ¶þ´ÎµÚÈý´Î
A272628
B292623
C262422
ÕâÈýλͬѧÖз´Ó¦ËÙ¶È×î¿ìµÄÊÇ    ͬѧ£¬ËûµÄ×î¿ì·´Ó¦Ê±¼äΪ    s£®
£¨2£©ÏÂÁÐÓйظßÖÐÎïÀíÁ¦Ñ§ÊµÑéµÄ˵·¨ÖУ¬²»ÕýÈ·µÄÒ»ÏîÊÇ    £®
A£®ÔÚ¡°Ì½¾¿ºÏÁ¦µÄ·½·¨¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨
B£®µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ4¡«6VµÄµÍѹ½»Á÷µçÔ´N/m
C£®ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È
D£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬Ò²ÒªÓõ½ÁËÖ½´øÎÊÌâµÄ´¦Àí·½·¨
£¨3£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿µ¯ÐÔÐαäÓëÍâÁ¦µÄ¹Øϵ¡±ÊµÑéʱ£¬½«Ò»Çᵯ»ÉÊúÖ±Ðü¹Ò²¢ÈÃÆä×ÔȻϴ¹£¬²â³öÆä×ÔÈ»³¤¶È£»È»ºóÔÚÆäϲ¿Ê©¼ÓÍâÁ¦£¬²â³öµ¯»ÉµÄ×ܳ¤¶Èx£¬¸Ä±äÍâÁ¦FµÄ´óС£¬²â³ö¼¸×éÊý¾Ý£¬×÷³öÍâÁ¦FÓ뵯»É×ܳ¤¶ÈxµÄ¹ØϵͼÏßÈçͼ2Ëùʾ£¨ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐУ©£¬ÓÉͼ¿ÉÖª¸Ãµ¯»ÉµÄ×ÔÈ»³¤¶È    cm£»¸Ãµ¯»ÉµÄ¾¢¶ÈϵÊýΪ    N/m£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø