ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÎªÁË̽¾¿¸¡Á¦´óСµÄÓ°ÏìÒòËØ£¬Ð¡»ªÍ¬Ñ§ÓÃͬһÎïÌå½øÐÐÁËÈçͼËùʾµÄ²Ù×÷£¬²¢¼ÇÏÂÎïÌ徲ֹʱµ¯»É²âÁ¦¼ÆµÄʾÊý¡£Í¼¼×ͼÖÐÎïÌåδ·ÅÈëÇ°ÒçË®±×°ÂúÁËË®£¬ÎïÌå½þÈëºó£¬Ë®È«²¿Òç³öµ½ÅԱߵÄСÉÕ±ÖУ¬½þûºó½«Òç³öµÄˮȫ²¿µ¹ÈëÁ¿Í²ÖУ¬ÈçͼÎìËùʾ¡£
(1)Èçͼ¼×Ëùʾ£¬½«Ô²ÖùÌåÖð½¥½þÈëË®ÖУ¬Ö±ÖÁÍêÈ«½þû£¬´Ë¹ý³ÌÖе¯»É²âÁ¦¼ÆʾÊýÖð½¥±äС£¬ËµÃ÷Ô²ÖùÌåÔÚË®ÖÐÊܵ½µÄ¸¡Á¦±ä_________£¬¸¡Á¦´óСÓë_______ÓйØ
(2)´ÓÒÒºÍ______ͼ¿ÉÖª£¬¸¡Á¦´óС»¹ÓÐÒºÌåÃܶÈÓйØ:
(3)С»ªÍ¨¹ý±È½ÏÒÒ¡¢±ûÁ½Í¼ÖÐF2ºÍF3µÄ´óС£¬µÃµ½¡°¸¡Á¦´óСÓëÎïÌå½þûµÄÉî¶ÈÓйء±µÄ½áÂÛ£¬´Ë½áÂÛÊÇ________(Ñ¡Ìî¡°ÕýÈ·¡±»ò¡°´íÎó¡±)µÄ£¬ÀíÓÉÊÇ___________________
(4)ÈçͼÎìËùʾ£¬Ôò²â³öµÄÔ²ÖùÌåÌå»ýΪ______cm3£¬ÎïÌåµÄÖØÁ¦_____N£¬Í¼¶¡ÖÐÑÎË®µÄÃܶÈΪ_______kg/m3. (gÈ¡10N/kg£¬Ë®µÄÃܶÈΪ1.0¡Á103kg/m3)
(5)ÈôÔ²ÖùÌå¸ßΪ5cm£¬ÔòÔ²ÖùÌå´Óͼ¼×ͼ¿ªÊ¼Ï½µ¸ÕºÃ½þûʱ£¬Ô²ÖùÌåÖØÁ¦×ö¹¦______J
¡¾´ð°¸¡¿´ó ÅÅ¿ªÒºÌåµÄÌå»ý ¶¡ ´íÎó ±ûÖÐÎïÌåÓëÈÝÆ÷µ×²¿½Ó´¥ ¼û½âÎöËùʾ 2 1.2¡Á103 0.06
¡¾½âÎö¡¿
µÚÒ»¿Õ£®Èçͼ¼×Ëùʾ£¬½«Ô²ÖùÌåÖð½¥½þÈëË®ÖУ¬Ö±ÖÁÍêÈ«½þû£¬´Ë¹ý³ÌÖе¯»É²âÁ¦¼ÆʾÊýÖð½¥±äС£¬ÓÉ¿ÉÖª£¬ÎïÌåÔÚË®ÖÐÊܵ½µÄ¸¡Á¦±ä´ó£»
µÚ¶þ¿Õ£®½«Ô²ÖùÌåÖð½¥½þÈëË®ÖУ¬Ö±ÖÁÍêÈ«½þû£¬ÎïÌåÅÅ¿ªµÄË®µÄÌå»ý±ä´óÊܵ½µÄ¸¡Á¦±ä´ó£¬ËµÃ÷¸¡Á¦´óСÓëÎïÌåÅÅ¿ªÒºÌåµÄÌå»ýÓйأ»
µÚÈý¿Õ£®Ñо¿¸¡Á¦µÄ´óСÓëÒºÌåµÄÃܶÈÓйأ¬Òª¿ØÖÆÅÅ¿ªÒºÌåµÄÌå»ýÏàͬ£¬¹Ê±È½ÏͼÒÒºÍͼ¶¡¿ÉÖª£¬¸¡Á¦µÄ´óСÓëÒºÌåµÄÃܶÈÓйء£
µÚËÄ¡¢Îå¿Õ£®Ì½¾¿¸¡Á¦µÄ´óСÓë½þûÉî¶ÈµÄ¹Øϵ£¬¿ØÖƵıäÁ¿Ó¦¸ÃÊÇÅÅ¿ªË®µÄÌå»ýºÍÒºÌåµÄÃܶȣ¬¸Ä±äÉî¶È£¬Ñ¡Ôñͼ±ûºÍÒÒ£¬±È½ÏF2ºÍF3µÄ´óС£¬µÃ³ö½áÂÛ£¬µ«ÊÇͼ±ûÖеÄÎïÌå½Ó´¥ÁËÈÝÆ÷µ×£¬Ê¹µÃ¶ÁÊý±äС£¬²úÉúÁË´íÎó½áÂÛ£»
µÚÁù¿Õ£®Á¿Í²ÖÐÅÅ¿ªË®µÄÌå»ýVÅÅ=50cm3=5¡Á10-5m3£¬ËùÒÔ
£»
µÚÆß¿Õ£®ÎïÌå½þûÔÚË®ÖÐʱËùÊܸ¡Á¦
=1¡Á103kg/m3¡Á10N/kg¡Á50¡Á10-6m3=0.5N£¬
ÎïÌåÖØÁ¦
£»
µÚ°Ë¿Õ£®ÎïÌåÔÚÑÎË®ÖÐÊܵ½µÄ¸¡Á¦
£¬
ÓɵãºÑÎË®µÄÃܶȣº
¡£
µÚ¾Å¿Õ£®¼×ͼÖУ¬µ¯»É²âÁ¦¼ÆµÄʾÊýΪ1.8N£¬Ô²ÖùÌåµÄÌå»ýΪ5¡Á10-5m3£¬ÖØÁ¦Îª2N£¬Ôò´ËʱÊܵ½µÄ¸¡Á¦Îª
£¬
Ô²ÖùÌå½þÈëÒºÌåµÄÌå»ýΪ
£¬
ËùÒÔ
£¬£¬£¬
Ô²ÖùÌå´Óͼ¼×ͼ¿ªÊ¼Ï½µ¸ÕºÃ½þûʱÏòÏÂÔ˶¯0.3m£¬Ô²ÖùÌåÖØÁ¦×ö¹¦Îª
¡£