ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡Ã÷ÔÚʵÑéÊÒÀï²âÁ¿Ò»¿éÐÎ×´²»¹æÔò¡¢Ìå»ý½Ï´óµÄ¿óʯµÄÃܶȡ£
£¨1£©Óõ÷½ÚºÃµÄÌìƽ²âÁ¿¿óʯµÄÖÊÁ¿¡£µ±Ììƽƽºâʱ£¬ÓÒÅÌÖÐÆÆÂëºÍÓÎÂëµÄλÖÃÈçͼ¼×Ëùʾ£¬¿óʯµÄÖÊÁ¿ÊÇ________g¡£
£¨2£©Òò¿óʯÌå»ý½Ï´ó£¬·Å²»½øÁ¿Í²£¬Òò´ËËûÀûÓÃÒ»Ö»ÉÕ±£¬°´ÈçͼÒÒ¡¢±û¡¢¶¡Ëùʾ·½·¨½øÐвâÁ¿£¬¿óʯÌå»ýÊÇ________cm3¡£
£¨3£©¿óʯµÄÃܶÈÊÇ________kg/m3£¬´ÓAµ½BµÄ²Ù×÷ÒýÆðµÄÃܶȲâÁ¿Öµ±ÈÕæʵ________£¨Ìî¡°Æ«´ó¡±¡°Æ«Ð¡¡±»ò¡°²»±ä¡±£©¡£
¡¾´ð°¸¡¿ 175.6 70 2.5¡Ál03 ƫС
¡¾½âÎö¡¿£¨1£©¸ù¾ÝÌâÒâÖªµÀ¿óʯµÄÖÊÁ¿ÊÇ£ºm=100g+50g+20g+5g+0.6g=175.6g
£¨2£©ÓÉÒÒ¡¢±û¡¢¶¡Ëùʾ֪µÀ£¬¿óʯȡ³öºóÁ¿Í²²¹³äµÀÉÕ±ÖеÄË®Ìå»ý¾ÍÊÇ¿óʯµÄÌå»ý£¬¼´¿óʯµÄÌå»ýµÈÓÚÁ¿Í²Öе¹³öË®µÄÌå»ý£ºV=200ml-130ml=70ml=70cm3
£¨3£©¿óʯµÄÃܶÈÊÇ£º¦Ñ=m/V=175.6g/70cm3=2.51g/cm3 =2.51¡Á103 kg/m3£¬¸ù¾ÝÌâÒâÖªµÀ¿óʯ±»È¡³öÊÇ»á´øһЩˮ£¬¹Ê²¹³äµÄˮƫ¶àһЩ£¬¹Ê²âÁ¿µÄÃܶÈÖµ»á±ÈÕæʵƫСһЩ¡£