ÔÚ¡°²âËáÄÌÃܶȡ±µÄʵÑéÖУ¬
£¨1£©Ð¡Ã÷µÄʵÑé·½°¸£ºÓÃÌìƽºÍÁ¿Í²²âÃܶȣ®
¢ÙËûÓÃÒѵ÷½ÚºÃµÄÌìƽ²âµÃ¿ÕÉÕ±­µÄÖÊÁ¿m0Ϊ37.4g£»½Ó×Å°ÑËáÄ̵¹ÈËÉÕ±­ÖУ¬²âµÃÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿m1£¬Èçͼ1Ëùʾm1=______g£»È»ºó°ÑÉÕ±­ÖеÄËáÄ̵¹ÈËÁ¿Í²ÖУ¬Èçͼ2Ëùʾ£¬VÄÌ=______cm3£»ÔòËáÄ̵ÄÃܶȦÑ=______g/cm3£®
¢ÚÔÚ½»Á÷ÌÖÂÛÖУ¬Ð¡ÓêͬѧÈÏΪСÃ÷²âµÃµÄËáÄÌÃܶÈֵƫ´ó£®ÆäÔ­ÒòÊÇ______
£¨2£©Ð¡ÓêµÄʵÑé·½°¸£ºÇÉÃîµØÀûÓÃÌìƽ¡¢Ð¡²£Á§Æ¿£¨Óиǣ©ºÍË®²âËáÄÌÃܶȣ®
ÇëÄã¼òҪд³öСÓêµÄʵÑé¹ý³ÌºÍËáÄÌÃܶȵļÆËã±í´ïʽ£¨ÓòâÁ¿µÄÎïÀíÁ¿·ûºÅ±íʾ£©£®______£®

½â£º£¨1£©¢ÙÓÉͼ֪£¬±ê³ßµÄ·Ö¶ÈֵΪ0.2g£¬ËùÒÔÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿Îª50g+20g+10g+1.4g=81.4g
ͼ֪Á¿Í²µÄ·Ö¶ÈÖµÊÇ1ml£¬ËùÒÔÁ¿Í²ÖÐËáÄ̵ÄÌå»ýΪ40cm3£®
ËáÄ̵ÄÖÊÁ¿Îªm=81.4g-37.4g=44g
¸ù¾Ý¦Ñ===1.1g/cm3
¢ÚÓÉÌâÒâÖª£¬µ±½«ËáÄ̵¹ÈëÁ¿Í²Ê±£¬²»Äܵ¹¸É¾»£¬ËùÒÔËù²âËáÄ̵ÄÌå»ýƫС£¬¸ù¾Ý¹«Ê½¦Ñ=£¬Ëù²âµÄÃܶÈÆ«´ó£®
£¨2£©ÔÚСƿÖе¹ÂúË®£¬²â³öË®µÄÖÊÁ¿£¬´Ó¶ø¿ÉÒÔ¼ÆËã³öË®µÄÌå»ý£¬È»ºóµ¹ÂúËáÄÌ£¬²â³öËáÄ̵ÄÖÊÁ¿£¬ËáÄ̵ÄÌå»ýÓëË®µÄÌå»ýÏàµÈ£®
¸ù¾ÝÃܶȹ«Ê½¼°²â³öµÄÊý¾Ý¼ÆËã³öËáÄ̵ÄÃܶȣ®
¹Ê´ð°¸Îª£º£¨1£©¢Ù81.4£»40£»1.1£»¢ÚËáÄ̵¹ÈëÁ¿Í²ÖлáÓв¿·Ö²ÐÁôÔÚÉÕ±­ÖУ¬Ê¹²âÁ¿µÄÌå»ýƫС£»
£¨2£©ÊµÑé¹ý³Ì£º¢ÙÓÃÌìƽ²â³öС²£Á§Æ¿£¨º¬¸Ç£©µÄÖÊÁ¿m0£»
¢ÚÔÚÆ¿ÄÚ×°ÂúË®£¬¸ÇÉϸÇ×Ó£¬ÓÃÌìƽ²â³öÆ¿ºÍË®µÄ×ÜÖÊÁ¿m1£»
¢Ûµ¹¸É¾»Ë®£¬ÔÙÍùÆ¿ÄÚ×°ÂúËáÄÌ£¬¸ÇÉϸÇ×Ó£¬ÓÃÌìƽ²â³öÆ¿ºÍËáÄ̵Ä×ÜÖÊÁ¿m2£»
ËáÄÌÃܶȵıí´ïʽ£º¦ÑÄÌ=£®
·ÖÎö£º£¨1£©¢ÙÌìƽƽºâʱÎïÌåµÄÖÊÁ¿µÈÓÚÓÒÅÌÖÐíÀÂëµÄÖÊÁ¿¼ÓÓÎÂëÔÚ±ê³ßÉÏËù¶ÔµÄ¿Ì¶ÈÖµ£®×¢Òâ±ê³ßµÄ·Ö¶ÈÖµ£®
ÈÏÇåÁ¿Í²µÄ·Ö¶ÈÖµ£¬È»ºó¶Á³öËáÄ̵ÄÌå»ý£®¸ù¾Ý¹«Ê½¦Ñ=¼ÆËã³öËáÄ̵ÄÃܶȣ®
¢Ú¸ù¾Ý²Ù×÷¹ý³Ì·ÖÎö²âÁ¿µÄÎïÀíÁ¿£¬ÓÉÓÚ½«ËáÄÌ´ÓÉÕ±­µ¹ÈëÁ¿Í²Ê±²»ÄÜÍêÈ«µ¹¸É¾»£¬´Ó¶øÔì³ÉÌå»ýµÄ²âÁ¿ÓÐÎ󣬸ù¾ÝÌå»ýµÄÆ«²îÀ´ÅжÏÃܶȵĴóС£®
£¨2£©´Ë¹ý³ÌȱÉÙÁ¿Í²£¬ËùÒÔ½â¾ö´ËÌâ¹Ø¼üÊǽâ¾öËáÄ̵ÄÌå»ý£®¸ù¾ÝÌáʾ£¬ÎÒÃÇ¿ÉÒÔ¼ÆËã³öÒÑÖªÖÊÁ¿µÄË®µÄÌå»ý£¬ÈÃËáÄ̺ÍË®µÄÌå»ýÏàͬ¾Í¿ÉÒÔÁË£®ÎªÊ¹Ë®ºÍËáÄ̵ÄÌå»ýÏàͬ£¬Ó¦ÔÚСƿÖÐÊ¢ÂúË®»òËáÄÌ£®
µãÆÀ£º´ËÌâÊDzâÁ¿ËáÄ̵ÄÃܶȣ¬ÕÆÎÕ²âÁ¿Ô­Àí£¬ÊµÑé¹ý³Ì²»¿É±ÜÃâµØ´æÔÚÎó²î£¬ÎÒÃÇÔÚÉè¼ÆʵÑéʱ£¬Ó¦¸Ã¿¼Âǵ½µ¼ÖÂÎó²îÔö´óµÄÒòËØ£¬¿ÉÄܵÄÇé¿öϽøÐÐÓÅ»¯Éè¼Æ£¬ÒÔ´ïµ½¼õСÎó²îµÄÄ¿µÄ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¸£ÖÝ£©ÔÚ¡°²âËáÄÌÃܶȡ±µÄʵÑéÖУ¬
£¨1£©Ð¡Ã÷µÄʵÑé·½°¸£ºÓÃÌìƽºÍÁ¿Í²²âÃܶȣ®
¢ÙËûÓÃÒѵ÷½ÚºÃµÄÌìƽ²âµÃ¿ÕÉÕ±­µÄÖÊÁ¿m0Ϊ37.4g£»½Ó×Å°ÑËáÄ̵¹ÈËÉÕ±­ÖУ¬²âµÃÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿m1£¬Èçͼ1Ëùʾm1=
81.4
81.4
g£»È»ºó°ÑÉÕ±­ÖеÄËáÄ̵¹ÈËÁ¿Í²ÖУ¬Èçͼ2Ëùʾ£¬VÄÌ=
40
40
cm3£»ÔòËáÄ̵ÄÃܶȦÑ=
1.1
1.1
g/cm3£®
¢ÚÔÚ½»Á÷ÌÖÂÛÖУ¬Ð¡ÓêͬѧÈÏΪСÃ÷²âµÃµÄËáÄÌÃܶÈֵƫ´ó£®ÆäÔ­ÒòÊÇ
ËáÄ̵¹ÈëÁ¿Í²ÖлáÓв¿·Ö²ÐÁôÔÚÉÕ±­ÖУ¬Ê¹²âÁ¿µÄÌå»ýƫС
ËáÄ̵¹ÈëÁ¿Í²ÖлáÓв¿·Ö²ÐÁôÔÚÉÕ±­ÖУ¬Ê¹²âÁ¿µÄÌå»ýƫС

£¨2£©Ð¡ÓêµÄʵÑé·½°¸£ºÇÉÃîµØÀûÓÃÌìƽ¡¢Ð¡²£Á§Æ¿£¨Óиǣ©ºÍË®²âËáÄÌÃܶȣ®
ÇëÄã¼òҪд³öСÓêµÄʵÑé¹ý³ÌºÍËáÄÌÃܶȵļÆËã±í´ïʽ£¨ÓòâÁ¿µÄÎïÀíÁ¿·ûºÅ±íʾ£©£®
m2-m0
m1-m0
?¦ÑË®
m2-m0
m1-m0
?¦ÑË®
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2013Äê³õÖбÏÒµÉýѧ¿¼ÊÔ£¨¸£½¨¸£ÖÝ¾í£©ÎïÀí£¨´ø½âÎö£© ÌâÐÍ£ºÊµÑéÌâ

ÔÚ¡°²âËáÄÌÃܶȡ±µÄʵÑéÖУ¬
(1)СÃ÷µÄʵÑé·½°¸£ºÓÃÌìƽºÍÁ¿Í²²âÃܶȡ£
¢ÙËûÓÃÒѵ÷½ÚºÃµÄÌìƽ²âµÃ¿ÕÉÕ±­µÄÖÊÁ¿m0Ϊ37.4 g£»½Ó×Å°ÑËáÄ̵¹ÈËÉÕ±­ÖУ¬²âµÃÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿m1£¬ÈçͼËùʾm1=________g£»È»ºó°ÑÉÕ±­ÖеÄËáÄ̵¹ÈËÁ¿Í²ÖУ¬ÈçͼËùʾ£¬VÄÌ=________cm3£»ÔòËáÄ̵ÄÃܶȦÑ=________g£¯cm3¡£

¢ÚÔÚ½»Á÷ÌÖÂÛÖУ¬Ð¡ÓêͬѧÈÏΪСÃ÷²âµÃµÄËáÄÌÃܶÈֵƫ´ó¡£ÆäÔ­ÒòÊÇ____________£»
(2)СÓêµÄʵÑé·½°¸£ºÇÉÃîµØÀûÓÃÌìƽ¡¢Ð¡²£Á§Æ¿(ÓиÇ)ºÍË®²âËáÄÌÃܶȡ£
ÇëÄã¼òҪд³öСÓêµÄʵÑé¹ý³ÌºÍËáÄÌÃܶȵļÆËã±í´ïʽ(ÓòâÁ¿µÄÎïÀíÁ¿·ûºÅ±íʾ)¡£
________________________________________________________________________

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2013Äê³õÖбÏÒµÉýѧ¿¼ÊÔ£¨¸£½¨¸£ÖÝ¾í£©ÎïÀí£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

ÔÚ¡°²âËáÄÌÃܶȡ±µÄʵÑéÖУ¬

(1)СÃ÷µÄʵÑé·½°¸£ºÓÃÌìƽºÍÁ¿Í²²âÃܶȡ£

¢ÙËûÓÃÒѵ÷½ÚºÃµÄÌìƽ²âµÃ¿ÕÉÕ±­µÄÖÊÁ¿m0Ϊ37.4 g£»½Ó×Å°ÑËáÄ̵¹ÈËÉÕ±­ÖУ¬²âµÃÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿m1£¬ÈçͼËùʾm1=________g£»È»ºó°ÑÉÕ±­ÖеÄËáÄ̵¹ÈËÁ¿Í²ÖУ¬ÈçͼËùʾ£¬VÄÌ=________cm3£»ÔòËáÄ̵ÄÃܶȦÑ=________g£¯cm3¡£

¢ÚÔÚ½»Á÷ÌÖÂÛÖУ¬Ð¡ÓêͬѧÈÏΪСÃ÷²âµÃµÄËáÄÌÃܶÈֵƫ´ó¡£ÆäÔ­ÒòÊÇ____________£»

(2)СÓêµÄʵÑé·½°¸£ºÇÉÃîµØÀûÓÃÌìƽ¡¢Ð¡²£Á§Æ¿(ÓиÇ)ºÍË®²âËáÄÌÃܶȡ£

ÇëÄã¼òҪд³öСÓêµÄʵÑé¹ý³ÌºÍËáÄÌÃܶȵļÆËã±í´ïʽ(ÓòâÁ¿µÄÎïÀíÁ¿·ûºÅ±íʾ)¡£

________________________________________________________________________

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2013Ä긣½¨Ê¡¸£ÖÝÊÐÖп¼ÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ÔÚ¡°²âËáÄÌÃܶȡ±µÄʵÑéÖУ¬
£¨1£©Ð¡Ã÷µÄʵÑé·½°¸£ºÓÃÌìƽºÍÁ¿Í²²âÃܶȣ®
¢ÙËûÓÃÒѵ÷½ÚºÃµÄÌìƽ²âµÃ¿ÕÉÕ±­µÄÖÊÁ¿mΪ37.4g£»½Ó×Å°ÑËáÄ̵¹ÈËÉÕ±­ÖУ¬²âµÃÉÕ±­ºÍËáÄ̵Ä×ÜÖÊÁ¿m1£¬Èçͼ1Ëùʾm1=______g£»È»ºó°ÑÉÕ±­ÖеÄËáÄ̵¹ÈËÁ¿Í²ÖУ¬Èçͼ2Ëùʾ£¬VÄÌ=______cm3£»ÔòËáÄ̵ÄÃܶȦÑ=______g/cm3£®
¢ÚÔÚ½»Á÷ÌÖÂÛÖУ¬Ð¡ÓêͬѧÈÏΪСÃ÷²âµÃµÄËáÄÌÃܶÈֵƫ´ó£®ÆäÔ­ÒòÊÇ______
£¨2£©Ð¡ÓêµÄʵÑé·½°¸£ºÇÉÃîµØÀûÓÃÌìƽ¡¢Ð¡²£Á§Æ¿£¨Óиǣ©ºÍË®²âËáÄÌÃܶȣ®
ÇëÄã¼òҪд³öСÓêµÄʵÑé¹ý³ÌºÍËáÄÌÃܶȵļÆËã±í´ïʽ£¨ÓòâÁ¿µÄÎïÀíÁ¿·ûºÅ±íʾ£©£®______£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸