ijʵÑéС×é×ö¡°²â¶¨ÑÎË®µÄÃܶȡ±ÊµÑ飨Èçͼ£©£º

£¨1£©ÔÚÉÕ±­ÖÐÊ¢ÊÊÁ¿ÑÎË®£¬ÓÃÌìƽ²â³öÉÕ±­ºÍÑÎË®×ÜÖÊÁ¿m1=97g£»
£¨2£©°ÑÉÕ±­ÖеÄÑÎË®µ¹ÈëÁ¿¼òÖÐÒ»²¿·Ö£¬Á¿Í²ÖеÄÑÎË®Ìå»ýÈçͼ£¨a£©Ëùʾ£¬ÔòÑÎË®Ìå»ýΪV=
26
26
cm3£»
£¨3£©Èçͼ£¨b£©£¬³Æ³öÉÕ±­ºÍÉÕ±­ÖÐÊ£ÓàÑÎË®µÄ×ÜÖÊÁ¿m2=
68.4
68.4
g£¬ÓÉ´ËËã³öÁ¿Í²ÖÐÑÎË®ÖÊÁ¿m=
28.6
28.6
g£»
£¨4£©¼ÆËãÑÎË®µÄÃܶȦÑ=
1.1
1.1
g/cm3£®
·ÖÎö£º¶ÁÈ¡Á¿Í²ÖÐÑÎË®µÄÌå»ýʱ£¬Ã÷È··Ö¶ÈÖµ¡¢Êý×¼¸ñÊýÊǹؼü£»
¶ÁÈ¡Ììƽ½á¹ûʱ£¬Ó¦ÏȼÓíÀÂ룬ÔÙ¼ÓÓÎÂ룬²¢×¢Òâ·ÖÇå±ê³ßÉϵķֶÈÖµ£»Á¿Í²ÖÐÑÎË®µÄÖÊÁ¿¿ÉÓÉÇ°Á½´Î²âÁ¿µÄ½á¹ûÇó³ö£»
¼ÆËãÑÎË®µÄÃܶȿÉʹÓù«Ê½¦Ñ=
m
V
£®
½â´ð£º½â£º£¨2£©¶Áͼ£¨a£©¿ÉÖª£¬Á¿Í²µÄ·Ö¶ÈֵΪ1ml£¬Á¿Í²ÖеÄʾÊýΪ26cm3£»
£¨3£©¶ÁÈ¡ÌìƽµÄʾÊýΪ£¬50g+10g+5g+3.4g=68.4g£»Á¿Í²ÖÐÑÎË®µÄÖÊÁ¿m=m1-m2=97g-68.4g=28.6g£»
£¨4£©ÑÎË®µÄÃܶȦÑ=
m
V
=
28.6g
26cm3
=1.1g/cm3£®
¹Ê´ð°¸Îª£º26£¬68.4£¬28.6£¬1.1£®
µãÆÀ£ºÔÚʹÓÃÌìƽºÍÁ¿Í²²âÒºÌåµÄÃܶȵÄʵÑéÖУ¬ÊìϤ²âÁ¿³ÌÐò£¬²¢ÄÜÕýÈ·¶ÁÈ¡ÌìƽºÍÁ¿Í²µÄ½á¹ûÊDZØÐëÒªÕÆÎÕµÄÒªÇó£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2012½ìÖØÇìÊÐÍòÖÝÇøÑÒ¿Ú¸´ÐËѧУ¾ÅÄ꼶ÏÂѧÆÚÆÚÖп¼ÊÔÎïÀíÊÔ¾í£¨´ø½âÎö£© ÌâÐÍ£ºÊµÑéÌâ

ijʵÑéС×é×ö¡°²â¶¨ÑÎË®µÄÃܶȡ±ÊµÑ飺£¨1£©ÓÐһλͬѧÓÃ×Ô¼ºµ÷ºÃµÄÍÐÅÌÌìƽ ²âÉÕ±­ºÍÑÎË®µÄ×ÜÖÊÁ¿£¬²Ù×÷Çé¿öÈçͼËùʾ£¬ÆäÖдíÎóµÄÊÇ£º

£¨a£©                                      
£¨b£©                                      
£¨2£©¾­ÀÏʦָÕý¹ýºó£¬ÖØвÙ×÷ÈçÏ£º
¢ÙÔÚÉÕ±­ÖÐÊ¢ÊÊÁ¿ÑÎË®£¬ÓÃÌìƽ³Æ³öÉÕ±­ºÍÑÎË®µÄ×ÜÖÊÁ¿m1=97g£»

¢Ú°ÑÉÕ±­ÖеÄÑÎË®µ¹ÈëÁ¿Í²ÖÐÒ»²¿·Ö£¬Á¿Í²ÖеÄÑÎË®Ìå»ýÈçͼ(a)Ëùʾ£¬ÔòÑÎË®Ìå»ýΪV=         cm3£»
¢ÛÈçͼ(b)£¬³Æ³öÉÕ±­ºÍÉÕ±­ÖÐÊ£ÓàÑÎË®µÄ×ÜÖÊÁ¿m2=      g£»ÓÉ´ËËã³öÁ¿Í²ÖÐÑÎË®ÖÊÁ¿m=          g£»
¢Ü¼ÆËã³öÑÎË®µÄÃܶÈ=           g/cm3¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2011-2012ѧÄêÖØÇìÊÐÍòÖÝÇøÑÒ¿Ú¸´ÐËѧУ¾ÅÄ꼶ÏÂѧÆÚÆÚÖп¼ÊÔÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

ijʵÑéС×é×ö¡°²â¶¨ÑÎË®µÄÃܶȡ±ÊµÑ飺£¨1£©ÓÐһλͬѧÓÃ×Ô¼ºµ÷ºÃµÄÍÐÅÌÌìƽ ²âÉÕ±­ºÍÑÎË®µÄ×ÜÖÊÁ¿£¬²Ù×÷Çé¿öÈçͼËùʾ£¬ÆäÖдíÎóµÄÊÇ£º

£¨a£©                                       

£¨b£©                                       

£¨2£©¾­ÀÏʦָÕý¹ýºó£¬ÖØвÙ×÷ÈçÏ£º

¢ÙÔÚÉÕ±­ÖÐÊ¢ÊÊÁ¿ÑÎË®£¬ÓÃÌìƽ³Æ³öÉÕ±­ºÍÑÎË®µÄ×ÜÖÊÁ¿m1=97g£»

¢Ú°ÑÉÕ±­ÖеÄÑÎË®µ¹ÈëÁ¿Í²ÖÐÒ»²¿·Ö£¬Á¿Í²ÖеÄÑÎË®Ìå»ýÈçͼ(a)Ëùʾ£¬ÔòÑÎË®Ìå»ýΪV=          cm3£»

¢ÛÈçͼ(b)£¬³Æ³öÉÕ±­ºÍÉÕ±­ÖÐÊ£ÓàÑÎË®µÄ×ÜÖÊÁ¿m2=       g£»ÓÉ´ËËã³öÁ¿Í²ÖÐÑÎË®ÖÊÁ¿m=           g£»

¢Ü¼ÆËã³öÑÎË®µÄÃܶÈ=            g/cm3¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2012-2013ѧÄêºþ±±Ê¡ÏåÑôÊÐÒ˳ÇÊÐÁõºïÖÐѧ¾ÅÄ꼶£¨ÉÏ£©ÆÚÄ©ÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ijʵÑéС×é×ö¡°²â¶¨ÑÎË®µÄÃܶȡ±ÊµÑ飨Èçͼ£©£º

£¨1£©ÔÚÉÕ±­ÖÐÊ¢ÊÊÁ¿ÑÎË®£¬ÓÃÌìƽ²â³öÉÕ±­ºÍÑÎË®×ÜÖÊÁ¿m1=97g£»
£¨2£©°ÑÉÕ±­ÖеÄÑÎË®µ¹ÈëÁ¿¼òÖÐÒ»²¿·Ö£¬Á¿Í²ÖеÄÑÎË®Ìå»ýÈçͼ£¨a£©Ëùʾ£¬ÔòÑÎË®Ìå»ýΪV=______cm3£»
£¨3£©Èçͼ£¨b£©£¬³Æ³öÉÕ±­ºÍÉÕ±­ÖÐÊ£ÓàÑÎË®µÄ×ÜÖÊÁ¿m2=______g£¬ÓÉ´ËËã³öÁ¿Í²ÖÐÑÎË®ÖÊÁ¿m=______g£»
£¨4£©¼ÆËãÑÎË®µÄÃܶȦÑ=______g/cm3£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2010-2011ѧÄê°ËÄ꼶£¨Ï£©Ëտư棺ÆÚÖÐÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ijʵÑéС×é×ö¡°²â¶¨ÑÎË®µÄÃܶȡ±ÊµÑ飨Èçͼ£©£º

£¨1£©ÔÚÉÕ±­ÖÐÊ¢ÊÊÁ¿ÑÎË®£¬ÓÃÌìƽ²â³öÉÕ±­ºÍÑÎË®×ÜÖÊÁ¿m1=97g£»
£¨2£©°ÑÉÕ±­ÖеÄÑÎË®µ¹ÈëÁ¿¼òÖÐÒ»²¿·Ö£¬Á¿Í²ÖеÄÑÎË®Ìå»ýÈçͼ£¨a£©Ëùʾ£¬ÔòÑÎË®Ìå»ýΪV=______cm3£»
£¨3£©Èçͼ£¨b£©£¬³Æ³öÉÕ±­ºÍÉÕ±­ÖÐÊ£ÓàÑÎË®µÄ×ÜÖÊÁ¿m2=______g£¬ÓÉ´ËËã³öÁ¿Í²ÖÐÑÎË®ÖÊÁ¿m=______g£»
£¨4£©¼ÆËãÑÎË®µÄÃܶȦÑ=______g/cm3£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸