ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬Ð¡Îï¿éÌ×Ôڹ̶¨ÊúÖ±¸ËÉÏ£¬ÓÃÇáÉþÁ¬½Óºó¿ç¹ýС¶¨»¬ÂÖÓëСÇòÏàÁ¬£¬¿ªÊ¼Ê±Îï¿éÓ붨»¬Âֵȸߡ£ÒÑ֪СÇòÖÊÁ¿ÊÇÎï¿éÖÊÁ¿µÄ2±¶£¬¸ËÓ뻬ÂÖ¼äµÄ¾àÀëΪd£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£¬Éþ¼°¸Ë×ã¹»³¤£¬²»¼ÆÒ»ÇÐĦ²Á¡£ÏÖ½«Îï¿éÓɾ²Ö¹ÊÍ·Å£¬ÔÚÎï¿éÏòÏÂÔ˶¯µÄ¹ý³ÌÖУ¬ÏÂÁÐ˵·¨´íÎóµÄÊÇ£¨¡¡¡¡£©
A.¸ÕÊÍ·ÅʱÎï¿éµÄ¼ÓËÙ¶ÈΪg
B.Îï¿éÖØÁ¦µÄ¹¦ÂÊÏÈÔö´óºó¼õС
C.Îï¿éϽµµÄ×î´ó¾àÀëΪ
D.Îï¿éËÙ¶È×î´óʱ£¬Éþ×ÓµÄÀÁ¦Ò»¶¨µÈÓÚÎï¿éµÄÖØÁ¦
¡¾´ð°¸¡¿D
¡¾½âÎö¡¿
A£®¸Õ¿ªÊ¼ÊÍ·Åʱ£¬Îï¿éˮƽ·½ÏòÊÜÁ¦Æ½ºâ£¬ÊúÖ±·½ÏòÖ»ÊÜÖØÁ¦£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉ¿ÉÖªÆä¼ÓËÙ¶ÈΪ£¬¹ÊAÕýÈ·£»
B£®¸ÕÊÍ·ÅʱÎï¿éµÄËÙ¶ÈΪÁ㣬СÇòÖØÁ¦µÄ¹¦ÂÊΪÁã¡£Îï¿éϽµµ½×îµÍµãʱСÇòµÄËÙ¶ÈΪÁ㣬СÇòÖØÁ¦µÄ¹¦ÂÊÓÖΪÁ㣬ËùÒÔСÇòÖØÁ¦µÄ¹¦ÂÊÏÈÔö´óºó¼õС£¬¹ÊBÕýÈ·£»
C£®Îï¿éϽµµÄ×î´ó¾àÀëΪ£¬Îï¿éµÄÖÊÁ¿Îª¡£¸ù¾Ýϵͳ»úеÄÜÊغ㶨ÂÉ£¬ÓÐ
½âµÃ
¹ÊCÕýÈ·£»
D£®Îï¿éµÄºÏÁ¦ÎªÁãʱËÙ¶È×î´ó£¬ÔòÉþ×ÓÀÁ¦µÄÊúÖ±ÏòÉϵķÖÁ¦Ò»¶¨µÈÓÚÎï¿éµÄÖØÁ¦£¬ËùÒÔÉþ×ÓµÄÀÁ¦Ò»¶¨´óÓÚÎï¿éµÄÖØÁ¦£¬¹ÊD´íÎó¡£
±¾ÌâÑ¡´íÎóµÄ£¬¹ÊÑ¡D¡£
¡¾ÌâÄ¿¡¿ÔÚ¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±ºÍÓÃÏðƤ½î¡°Ì½¾¿×ö¹¦ÓëÎïÌåËٶȱ仯µÄ¹Øϵ¡±ÊµÑéÖÐ
(1)ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ_______£»
A.¶¼ÐèҪƽºâĦ²ÁÁ¦
B.¶¼²»ÐèҪƽºâĦ²ÁÁ¦
C.¶¼ÐèÒªÓÃÌìƽ²âС³µµÄÖÊÁ¿
D.¶¼²»ÐèÒªÓÃÌìƽ²âС³µµÄÖÊÁ¿
(2)ÔÚ×ö¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±ÊµÑéʱ£¬»ñµÃÈçͼ¼×ËùʾµÄÒ»ÌõÖ½´ø£¨²¿·Ö£©£º1¡¢2¡¢3¡¢4¡¢5¡¢6¡¢7ÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµã£¨Í¼ÖÐδ»³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀë±êʾÈçͼ¼×Ëùʾ£¬ÆäÖÐs1=7.05cm¡¢s2=7.68cm¡¢s3=8.33cm¡¢s4=8.95cm¡¢s5=9.61cm¡¢s6=10.26cm¡£¸ù¾ÝʵÑéÊý¾ÝÍê³É±í¸ñÖпհ״¦£»
¼ÆÊýµã | 2 | 3 | 4 | 5 | 6 |
˲ʱËÙ¶È/£¨m/s£© | 0.737 | 0.801 | __ | 0.928 | 0.994 |
ÓÉÖ½´øÉϵĵ㼣ÇóµÃС³µµÄ¼ÓËÙ¶Èa=_______m/s2£¨¼ÓËÙ¶Èa±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£»
(3)ÔÚÓÃÏðƤ½î¡°Ì½¾¿×ö¹¦ÓëÎïÌåËٶȱ仯µÄ¹Øϵ¡±ÊµÑéÖУ¬Í¼ÒÒÊÇÕýÈ·²Ù×÷ºóµÃµ½µÄÒ»ÌõÖ½´øµÄºó°ë²¿·Ö¡£ÈôÒÑÖªÖ½´øÉÏ´òÏÂ×ó²àµÚÒ»¸öµãʱС³µµÄËÙ¶ÈΪv1£¬´òϵÚÈý¸öµãʱС³µµÄËÙ¶ÈΪv3£¬Åжϴòϵڶþ¸öµãʱС³µµÄËÙ¶Èv2_______£¨Ñ¡Ìî¡°µÈÓÚ¡±¡° ´óÓÚ¡±»ò¡°Ð¡ÓÚ¡±£©¡£