ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡Ã÷ÓÃÈçͼËùʾװÖÃÄ£ÄâÈËÑÛ³ÉÏñÇé¿ö£¬´ËʱÖòÑæÔÚ¹âÆÁÉϳÉÇåÎúµÄÏñ£®
(1) ʵÑéʱ£¬Ó¦Ê¹ÖòÑæºÍ_________µÄÖÐÐÄλÓÚ͹͸¾µµÄÖ÷¹âÖáÉÏ£®
(2) ͼÖÐÎï¾àuÓ¦Âú×㣨____£©
A£®u>2f B£®u=2f C£®f <u<2f D. u<f
(3) µ±À¯ÖòÔ¶Àë͹͸¾µÊ±£¬ÖòÑæµÄÏñ½«ÂäÔÚ¹âÆÁµÄ_________(Ìî¡°Ç°¡±»ò¡°ºó¡±)·½£®
(4) СÃ÷ÕÒÀ´Á˼¸¸ö͸¾µ£¬Ñо¿Í¹Í¸¾µ³ÉÏñ´óСÓë½¹¾àµÄ¹Øϵ£¬Êý¾ÝÈçÏÂ±í£º
·ÖÎö±íÖÐÊý¾Ý²¢½áºÏÄã¶Ô͹͸¾µ³ÉÏñ¹æÂɵÄÁ˽⣬¿ÉÖª£ºÔÚÎï¾àÒ»¶¨Ê±£¬Í¹Í¸¾µµÄ½¹¾àÔ½´ó£¬Ëù³ÉʵÏñµÄÏñ¾à½«Ô½________£¬Ëù³ÉÏñµÄ´óС½«Ô½________£®
(5) ÔÚµÚ(3)СÌâµÄÇé¿öÏ£¬ÈôÓôËʵÑéÄ£ÄâÈËÑ۵ĵ÷½Ú¹¦ÄÜ£¬ÖØÐÂÔÚ¹âÆÁÉϵõ½ÇåÎúµÄÏñ£¬Ó¦¸Ã½øÐеIJÙ×÷ÊÇ£º»»ÓÃ__________(Ìî¡°½Ï´ó¡±»ò¡°½ÏС¡±)½¹¾àµÄ͹͸¾µ£®
¡¾´ð°¸¡¿ ¹âÆÁ A Ç° ´ó ´ó ½Ï´ó
¡¾½âÎö¡¿£¨1£©ÊµÑéʱ£¬ÎªÁËʹÏñ³ÉÔÚ¹âÆÁµÄÖÐÑ룬ӦʹÖòÑæºÍ¹âÆÁµÄÖÐÐÄλÓÚ͹͸¾µµÄÖ÷¹âÖáÉÏ¡£
£¨2£©ÓÉͼ£¬ÖòÑæÔÚ¹âÆÁÉϳɵ¹Á¢¡¢ËõСµÄÏñ£¬ËùÒÔÎï¾àuÓ¦Âú×ãu£¾2f£¬¹ÊAÕýȷΪ´ð°¸¡£
£¨3£©µ±À¯ÖòÔ¶Àë͹͸¾µÊ±£¬¸ù¾Ý͹͸¾µ³ÉʵÏñʱ¡°ÎïÔ¶Ïñ½üÏñ±äС¡±£¬ÖòÑæµÄÏñ½«ÂäÔÚ¹âÆÁµÄÇ°·½¡£
£¨4£©·ÖÎö±íÖÐÊý¾Ý¿ÉÖª£¬ÔÚÎï¾àÒ»¶¨Ê±£¬Í¹Í¸¾µµÄ½¹¾àÔ½´ó£¬Ëù³ÉʵÏñµÄÏñ¾à½«Ô½´ó£¬Ëù³ÉÏñµÄ´óС½«Ô½´ó¡£
£¨5£©ÔÚµÚ(3)СÌâµÄÇé¿öÏ£¬Ïñ³ÉÔÚÁ˹âÆÁµÄÇ°·½£¬Óë½üÊÓÑ۵ijÉÒòÀàËÆ£¬ËµÃ÷͹͸¾µµÄ¾Û¹âÄÜÁ¦½ÏÇ¿£¬½¹¾à̫С£¬ÎªÁËÄÜÖØÐÂÔÚ¹âÆÁÉϵõ½ÇåÎúµÄÏñÓ¦»»Óýϴ󽹾àµÄ͹͸¾µ¡£