ÌâÄ¿ÄÚÈÝ
£¨2012?»ÆÆÒÇø¶þÄ££©Ð¡»ÆÔÚʵÑéÊÒÀï²âÁ¿Ò»¿éÐÎ×´²»¹æÔò£¬ÇÒÌå»ý½Ï´óµÄ¿óʯÃܶȣ®
![](http://thumb.1010pic.com/pic3/upload/images/201305/97/dae0710d.png)
£¨1£©Ê¹ÓÃÍÐÅÌÌìƽʱ£¬Ó¦½«Ììƽ·ÅÔÚ
£¨2£©ÓÃÒѵ÷ºÃµÄÌìƽ²âÁ¿¿óʯÖÊÁ¿£¬µ±ÌìƽƽºâʱµÄíÀÂëºÍÓÎÂëÈçͼ£¨b£©Ëùʾ£¬Ôò¿óʯµÄÖÊÁ¿ÊÇ
£¨3£©ÓÉÓÚ¿óʯÌå»ý½Ï´ó¶ø·Å²»½øÁ¿Í²£¬Îª´ËËûÀûÓÃÒ»¸öÄܷŵÃÏ¿óʯµÄÉÕ±¡¢Á¿Í²¡¢ÓÍÐԱʺÍ×ãÁ¿µÄË®£¬ÈçͼËùʾ²âÁ¿¿óʯÌå»ý²½Ö裬²âµÃ¿óʯµÄÌå»ýÊÇ
![](http://thumb.1010pic.com/pic3/upload/images/201305/97/1a26dc15.png)
£¨4£©Ôò¿óʯµÄÃܶÈÊÇ
£¨5£©ÓÉÓÚͼAµ½Í¼BµÄ²Ù×÷£¬ÒýÖÁÃܶȲâÁ¿Öµ±ÈÕæʵֵ
![](http://thumb.1010pic.com/pic3/upload/images/201305/97/dae0710d.png)
£¨1£©Ê¹ÓÃÍÐÅÌÌìƽʱ£¬Ó¦½«Ììƽ·ÅÔÚ
ˮƽ
ˮƽ
×ÀÃæÉÏ£¬ÓÎÂëÒÆÖÁ±ê³ß×ó¶Ë¡°0¡±¿Ì¶ÈÏß´¦£¬Èô·¢ÏÖÖ¸Õ뾲ֹʱָÔÚ·Ö¶ÈÅÌÖÐÑëµÄÓҲ࣬Èçͼ£¨a£©Ëùʾ£¬ÔòÓ¦½«ÌìƽÓҶ˵ÄƽºâÂÝĸ
ƽºâÂÝĸ
Ïò×ó
×ó
£¨Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©µ÷½Ú£¬Ö±µ½Ê¹ºáÁºÆ½ºâΪֹ£®£¨2£©ÓÃÒѵ÷ºÃµÄÌìƽ²âÁ¿¿óʯÖÊÁ¿£¬µ±ÌìƽƽºâʱµÄíÀÂëºÍÓÎÂëÈçͼ£¨b£©Ëùʾ£¬Ôò¿óʯµÄÖÊÁ¿ÊÇ
175.6
175.6
g£®£¨3£©ÓÉÓÚ¿óʯÌå»ý½Ï´ó¶ø·Å²»½øÁ¿Í²£¬Îª´ËËûÀûÓÃÒ»¸öÄܷŵÃÏ¿óʯµÄÉÕ±¡¢Á¿Í²¡¢ÓÍÐԱʺÍ×ãÁ¿µÄË®£¬ÈçͼËùʾ²âÁ¿¿óʯÌå»ý²½Ö裬²âµÃ¿óʯµÄÌå»ýÊÇ
70
70
cm3£®![](http://thumb.1010pic.com/pic3/upload/images/201305/97/1a26dc15.png)
£¨4£©Ôò¿óʯµÄÃܶÈÊÇ
2.5¡Á103
2.5¡Á103
kg/m3£»£¨5£©ÓÉÓÚͼAµ½Í¼BµÄ²Ù×÷£¬ÒýÖÁÃܶȲâÁ¿Öµ±ÈÕæʵֵ
ƫС
ƫС
£¨Ñ¡Ìƫ´ó¡¢Æ«Ð¡»ò²»±ä£©·ÖÎö£º£¨1£©ÕÆÎÕÌìƽµÄʹÓùæÔò£®Ê¹ÓÃÍÐÅÌÌìƽʱ£¬Ó¦½«Ììƽ·ÅÔÚˮƽ×ÀÃæÉÏ£®ÔÚ½øÐе÷ƽʱ£¬ÄĶËÅÌÆ«¸ß£¬Æ½ºâÂÝĸӦÏòÄĶ˵÷½Ú£®
£¨2£©ÌìƽƽºâʱÎïÌåµÄÖÊÁ¿µÈÓÚÓÒÅÌÖÐíÀÂëµÄÖÊÁ¿¼ÓÓÎÂëÔÚ±ê³ßÉÏËù¶ÔµÄ¿Ì¶ÈÖµ£®¶ÁÊýʱ£¬×¢Òâ±ê³ßµÄ·Ö¶ÈÖµ£®
£¨3£©·Ö±ð¶Á³öµ¹ÈëÉձǰˮµÄÌå»ýºÍµ¹ÈëÉÕ±ºóÊ£ÓàË®µÄÌå»ý£¬Á½´ÎÌå»ýÖ®²î±ãΪʯ¿éµÄÌå»ý£®ÔÚ¶ÁÊýʱ£¬×¢ÒâÁ¿Í²µÄ·Ö¶ÈÖµ£®
£¨4£©½«ÖÊÁ¿ºÍÌå»ý´úÈ빫ʽ¦Ñ=
±ã¿ÉÇó³ö£®
£¨5£©ÔÚ·ÖÎöʱ£¬Ö÷Òª·ÖÎöÌå»ýºÍÖÊÁ¿µÄ²âÁ¿³öÏÖµÄÎó²î£¬È»ºó¸ù¾ÝÃܶȹ«Ê½½øÐзÖÎö£®
£¨2£©ÌìƽƽºâʱÎïÌåµÄÖÊÁ¿µÈÓÚÓÒÅÌÖÐíÀÂëµÄÖÊÁ¿¼ÓÓÎÂëÔÚ±ê³ßÉÏËù¶ÔµÄ¿Ì¶ÈÖµ£®¶ÁÊýʱ£¬×¢Òâ±ê³ßµÄ·Ö¶ÈÖµ£®
£¨3£©·Ö±ð¶Á³öµ¹ÈëÉձǰˮµÄÌå»ýºÍµ¹ÈëÉÕ±ºóÊ£ÓàË®µÄÌå»ý£¬Á½´ÎÌå»ýÖ®²î±ãΪʯ¿éµÄÌå»ý£®ÔÚ¶ÁÊýʱ£¬×¢ÒâÁ¿Í²µÄ·Ö¶ÈÖµ£®
£¨4£©½«ÖÊÁ¿ºÍÌå»ý´úÈ빫ʽ¦Ñ=
m |
V |
£¨5£©ÔÚ·ÖÎöʱ£¬Ö÷Òª·ÖÎöÌå»ýºÍÖÊÁ¿µÄ²âÁ¿³öÏÖµÄÎó²î£¬È»ºó¸ù¾ÝÃܶȹ«Ê½½øÐзÖÎö£®
½â´ð£º½â£º£¨1£©ÔÚʹÓÃÍÐÅÌÌìƽʱ£¬Ó¦½«Ììƽ·ÅÔÚˮƽ×ÀÃæÉÏ£®
ÓÉͼ֪£¬Ö¸ÕëÆ«ÏòÓÒ£¬ËùÒÔ×óÅ̸ߣ¬Æ½ºâÂÝĸӦÏò×óµ÷½Ú£®
£¨2£©±ê³ßµÄ·Ö¶ÈֵΪ0.5g
ÎïÌåµÄÖÊÁ¿Îªm=100g+50g+20g+5.6g=175.6g
£¨3£©Á¿Í²µÄ·Ö¶ÈֵΪ10ml
ÔÀ´Á¿Í²ÖеÄË®µÄÌå»ýΪV1=200ml
µ¹³öºóË®µÄÌå»ýΪV2=130ml
ËùÒÔʯ¿éµÄÌå»ýΪV=200ml-130ml=70ml=70cm3
£¨4£©¿óʯµÄÃܶȦÑ=
=
¡Ö2.5¡Á103 kg/m3
£¨5£©ÓÉÓÚ½«¿óʯ´ÓÉÕ±ÖÐÄóöʱ£¬Ê¯¿éÉÏ»áÕ´ÓÐË®£¬ËùÒÔ²âµÃµÄÌå»ýÆ«´ó£¬¸ù¾Ý¹«Ê½¦Ñ=
±ã¿ÉµÃ²âÁ¿µÄÃܶÈƫС£®
¹Ê´ð°¸Îª£º£¨1£©Ë®Æ½£»Æ½ºâÂÝĸ£»×󣻣¨2£©175.6£»£¨3£©70£» £¨4£©2.5¡Á103£»£¨5£©Æ«Ð¡£®
ÓÉͼ֪£¬Ö¸ÕëÆ«ÏòÓÒ£¬ËùÒÔ×óÅ̸ߣ¬Æ½ºâÂÝĸӦÏò×óµ÷½Ú£®
£¨2£©±ê³ßµÄ·Ö¶ÈֵΪ0.5g
ÎïÌåµÄÖÊÁ¿Îªm=100g+50g+20g+5.6g=175.6g
£¨3£©Á¿Í²µÄ·Ö¶ÈֵΪ10ml
ÔÀ´Á¿Í²ÖеÄË®µÄÌå»ýΪV1=200ml
µ¹³öºóË®µÄÌå»ýΪV2=130ml
ËùÒÔʯ¿éµÄÌå»ýΪV=200ml-130ml=70ml=70cm3
£¨4£©¿óʯµÄÃܶȦÑ=
m |
V |
175.6g |
70cm3 |
£¨5£©ÓÉÓÚ½«¿óʯ´ÓÉÕ±ÖÐÄóöʱ£¬Ê¯¿éÉÏ»áÕ´ÓÐË®£¬ËùÒÔ²âµÃµÄÌå»ýÆ«´ó£¬¸ù¾Ý¹«Ê½¦Ñ=
m |
V |
¹Ê´ð°¸Îª£º£¨1£©Ë®Æ½£»Æ½ºâÂÝĸ£»×󣻣¨2£©175.6£»£¨3£©70£» £¨4£©2.5¡Á103£»£¨5£©Æ«Ð¡£®
µãÆÀ£º´ËÌâ²âÁ¿¿óʯµÄÃܶȣ¬Ê×ÏÈÒªÕÆÎÕÌìƽµÄʹÓúͶÁÊý£¬Í¬Ê±¿¼²éÁËÒ»ÖÖ²âÁ¿Ìå»ýÆ«´óµÄÎïÌåÌå»ýµÄ·½·¨£®¿¼²éÁËÃܶȵļÆËã¼°Îó²îµÄ·ÖÎö£¬ÔÚ·ÖÎöʱ¹Ø¼üÊÇ·ÖÎö³öÖÊÁ¿¡¢Ìå»ýµÄ²âÁ¿³öÏÖµÄÎó²î£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿