ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³Í¬Ñ§ÎªÌ½¾¿¡°ºÏÁ¦×ö¹¦ÓëÎïÌ嶯ÄܸıäµÄ¹Øϵ¡±Éè¼ÆÁËÈçÏÂʵÑ飬ËûµÄ²Ù×÷²½ÖèÈçÏ£º
(1)°´Í¼Á¬½ÓʵÑé×°Öã¬ÆäÖÐС³µÖÊÁ¿M=0.20kg£¬¹³Âë×ÜÖÊÁ¿m=0.05kg¡£
(2)ÊÍ·ÅС³µ£¬È»ºó½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¨µçԴƵÂÊΪf=50Hz£©£¬´ò³öÌõÖ½´ø¡£
(3)ËûÔÚ¶à´ÎÖظ´ÊµÑéµÃµ½µÄÖ½´øÖÐÈ¡³ö×ÔÈÏΪÂúÒâµÄÒ»Ìõ£¬ÈçͼËùʾ¡£°Ñ´òϵĵÚÒ»µã¼Ç×÷0£¬È»ºóÒÀ´ÎÈ¡Èô¸É¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐ4¸öµãδ»³ö£¬ÓÃÀåÃ׿̶ȳ߲âµÃ¸÷¼ÆÊýµãµ½0µã¾àÀë·Ö±ðΪd1=0.041m£¬d2=0.055m£¬d3=0.167m£¬d4=0.256m£¬d5=0.360m£¬d6=0.480m¡£Ëû°Ñ¹³ÂëÖØÁ¦×÷ΪС³µËùÊܺÏÁ¦£¨µ±µØÖØÁ¦¼ÓËÙ¶ÈgÈ¡9.8m/s2£©£¬Ëã³ö´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖкÏÁ¦×ö¹¦W=____J£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£¬´Ë¹ý³ÌµÄ¶¯ÄܸıäÁ¿µÄ±í´ïʽΪEk=______£¨ÓÃÏà¹ØÊý¾ÝÇ°×ÖĸÁÐʽ£©£¬ËãµÃEk=0.125J¡£
(4)´Ë´ÎʵÑé̽¾¿µÄ½á¹ûÆ«²îºÜ´ó£¬Ã»Äܵõ½¡°ºÏÁ¦¶ÔÎïÌå×öµÄ¹¦µÈÓÚÎïÌ嶯Äܵı仯¡±ÕâÒ»½áÂÛ¡£Í¨¹ý·´Ë¼£¬ËûÈÏΪ²úÉú½Ï´óÆ«²îµÄÔÒòÈçÏ£¬ÆäÖпÉÄܵÄÊÇ___________¡£
A£®Ã»ÓÐƽºâĦ²ÁÁ¦£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à
B£®¹³ÂëÖÊÁ¿Ã»ÓÐԶСÓÚС³µÖÊÁ¿£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à
C£®ÏÈÊÍ·ÅС³µºó½Óͨ´òµç¼ÆʱÆ÷£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫС
D£®¼ÆËã¡°5¡±µãµÄ˲ʱËÙ¶Èʱ£¬Á½¼ÆÊýµã¼äʱ¼ä¼ä¸ôÎóÈ¡ÁË0.08s
¡¾´ð°¸¡¿0.176 AB
¡¾½âÎö¡¿
(3)[1]°Ñ¹³ÂëÖØÁ¦×÷ΪС³µËùÊܺÏÁ¦£¬´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖкÏÁ¦×ö¹¦
[2]ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐ4¸öµãδ»³ö£¬Ôò¼ÆÊýµã¼äʱ¼äµã¸ôΪ£¬´òÏ¡°5¡±µãʱС³µµÄËÙ¶È
´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖУ¬Ð¡³µ¶¯ÄܸıäÁ¿
(4) AB£®¹³ÂëÖÊÁ¿Ã»ÓÐԶСÓÚС³µÖÊÁ¿£¬¹³ÂëС½µµÄ¼ÓËٶȽϴó£¬ÉþÖÐÀÁ¦Ð¡ÓÚ¹³ÂëÖØÁ¦£¬ÓÖûÓÐƽºâĦ²ÁÁ¦£¬¹³ÂëÖØÁ¦£¨²âÁ¿µÄºÏÁ¦£©´óÓÚС³µËùÊܵÄÕæʵºÏÁ¦£¨ÉþÖÐÀÁ¦¼õȥĦ²ÁÁ¦£©£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à£¬¹ÊABÏîÕýÈ·£»
C£®ÏÈÊÍ·ÅС³µºó½Óͨ´òµç¼ÆʱÆ÷£¬´ò¡°0¡±µãʱС³µ¶¯ÄÜ´óÓÚ0£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´ó£¬¹ÊCÏî´íÎó£»
D£®¼ÆËã¡°5¡±µãµÄ˲ʱËÙ¶Èʱ£¬Á½¼ÆÊýµã¼äʱ¼ä¼ä¸ôÎóÈ¡ÁË0.08s£¬»áʹ²âÁ¿µÄËÙ¶ÈÆ«´ó£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´ó£¬¹ÊDÏî´íÎó¡£
¹ÊÑ¡AB¡£
¡¾ÌâÄ¿¡¿ÔÚ¿Æѧ̽¾¿»î¶¯ÖУ¬·ÖÎöʵÑéÊý¾Ý²¢¹éÄɵóö½áÂÛÊǷdz£ÖØÒªµÄ»·½Ú£®ÔÚ¡°Ì½¾¿ÎïÌåÖ±ÏßÔ˶¯µÄ¹æÂÉ¡±ÊµÑéÖÐ, ijʵÑéС×é²âµÃλÒÆsºÍʱ¼ätµÄÊý¾ÝÈçÏÂ±í£®
Ëù²âµÄ | 1 | 2 | 3 | 4 | 5 | 6 |
ʱ¼ät(s) | 0.89 | 1.24 | 1.52 | 1.58 | 1.97 | 2.15 |
λÒÆs(m) | 0.25 | 0.50 | 0.75 | 1.00 | 1.25 | 1.50 |
£¨1£©¸ù¾ÝÊý¾ÝÔÚ×ø±êÖ½ÉÏ×÷³öÎïÌåÔ˶¯µÄs-tͼÏó£®
£¨2£©¸ù¾Ý×÷ͼ¿ÉÅжϳö±í¸ñÖеÚ____×éÊý¾ÝÓдíÎó£®
£¨3£©ÈôijͬѧÌá³öλÒÆÓëʱ¼äµÄ¶þ´Î·½³ÉÕý±ÈµÄ²ÂÏë,ΪÑéÖ¤²ÂÏëÊÇ·ñÕýÈ·,Ó¦×÷____________ͼÏó.Èô¸Ã²ÂÏë³ÉÁ¢£¬ÔòÎïÌå×ö____________Ö±ÏßÔ˶¯£®