ΪÁ˼ø±ð½ðÊôµÄ²ÄÁÏ£¬ÏÂÃæÊÇСÃ÷ͬѧµÄʵÑé²Ù×÷¹ý³ÌºÍʵÑéÇé¾°£®
A£®ÓÃϸÏß½«½ðÊô¿éË©ºÃÇáÇá·ÅÈËÁ¿Í²ÄÚµÄË®ÖУ¬²â³öË®ºÍ½ðÊô¿éµÄ×ÜÌå»ýV2£»
B£®¼ÆËã½ðÊô¿éµÄÃܶȣ»
C£®ÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®£¬²â³öË®µÄÌå»ýV1£»
D£®ÓÃÌìƽ³Æ³ö½ðÊô¿éµÄÖÊÁ¿m£»
E£®°ÑÌìƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬µ÷½ÚƽºâÂÝĸ£¬Ê¹Ììƽƽºâ£®
£¨1£©ÕýÈ·µÄ²Ù×÷¹ý³ÌºÍ˳ÐòΪ£¨ÌîÐòºÅ£©£®______£»
£¨2£©Ç뽫ͼÖвâÁ¿µ½µÄÊý¾ÝÌîÔÚ±í¸ñÖУ¬²¢Ìîд±í¸ñÖеÄȱÏî´¦
½ðÊô¿éÖÊÁ¿m/gÁ¿Í²ÖÐË®Ìå»ý  V1/cm3______½ðÊô¿éµÄÌå»ýV/cm3½ðÊô¿éµÄÃܶȦÑ/
______________________________
£¨3£©¾­²é±í¶ÔÕÕ¿ÉÖª¸Ã½ðÊô¿ÉÄÜÊÇ______£®
½ðÊôÃܶÈ
Í­8.9×103
Ìú 7.9×103
ÂÁ2.7×103
Ǧ11.3×103
Òø10.5×103


¡¾´ð°¸¡¿·ÖÎö£º£¨1£©±¾ÌâÖ÷Òª¿¼²é¶Ô²âÁ¿¹ÌÌåÃܶȵÄʵÑé²½ÖèµÄÉè¼ÆÄÜÁ¦£¬¶ÔÓÚ¹ÌÌåÃܶȵIJâÁ¿£¬Í¨³£ÊÇÏȵ÷½ÚÌìƽƽºâ£¬ÔÙÓÃÌìƽ²â³öÖÊÁ¿£¬È»ºóÓÃÁ¿Í²²â³öÌå»ý£¬×îºó´úÈëÃܶȹ«Ê½¼ÆËãÎïÌåµÄÃܶȣ®
£¨2£©Á¿Í²ºÍÌìƽµÄ¶ÁÊý£¬Ê×ÏÈҪŪÇå³þÆäÁ¿³ÌºÍ·Ö¶ÈÖµÔÙÈ¥¶ÁÊý£®½ðÊô¿éµÄÌå»ýµÈÓÚ½ðÊô¿éºÍË®µÄ×ÜÌå»ý¼õȥˮµÄÌå»ý£»¸ù¾Ý¹«Ê½¦Ñ=¼ÆËã³ö½ðÊô¿éµÄÃܶȣ®
£¨3£©¸ù¾ÝÇó³öµÄÃܶÈÖµ£¬²éÃܶȱí¿ÉÖª´Ë½ðÊôΪÂÁ£®
½â´ð£º½â£º£¨1£©²â½ðÊô¿éÃܶÈÓ¦ÏȲâÖÊÁ¿ÔÙ²âÌå»ý£¬ËùÒÔ²â½ðÊô¿éµÄÃܶÈÕýÈ·µÄʵÑé²Ù×÷˳ÐòÊÇEDCAB£®
£¨2£©ÓÃÁ¿Í²²âÁ¿µÄÊÇË®µÄÌå»ýºÍË®ºÍ½ðÊô¿éµÄ×ÜÌå»ýV2/cm3£»
½ðÊô¿éµÄÖÊÁ¿=íÀÂëÖÊÁ¿+ÓÎÂëÖÊÁ¿£¬m=50g+4g=54g£¬
Á¿Í²1¸ö´ó¸ñ±íʾ10cm3£¬ÀïÃæÓÐ10¸öС¸ñ£¬¹ÊÆä·Ö¶ÈֵΪ1cm3£¬¹ÊË®µÄÌå»ýV1=20cm3£¬
·ÅÈë½ðÊô¿éºóµÄ×ÜÌå»ýV2=40cm3£¬
½ðÊô¿éµÄÌå»ýV=20cm3£¬
½ðÊô¿éµÄÃܶÈ=2.7g/cm3=2.7×103kg/m3
£¨3£©¾­²éÃܶȱí¿ÉÖª£¬¸Ã½ðÊô¿ÉÄÜÊÇÂÁ£®
¹Ê´ð°¸Îª£º£¨1£©EDCAB£»
£¨2£©¼ûÏÂ±í£»
½ðÊô¿éÖÊÁ¿m/gÁ¿Í²ÖÐË®Ìå»ý  V1/cm3·ÅÈë½ðÊô¿éºóµÄ×ÜÌå»ýV2/cm3½ðÊô¿éµÄÌå»ýV/cm3½ðÊô¿éµÄÃܶȦÑ/£¨kg?m-3£©
542040202.7×103
£¨3£©ÂÁ£®
µãÆÀ£º±¾Ì⿼²é֪ʶÃæ±È½Ï¹ã£¬²âÁ¿¹ÌÌåÃܶȵÄʵÑé²½ÖèµÄÉè¼ÆÄÜÁ¦£¬ÌìƽµÄʹÓúͶÁÊý£¬Á¿Í²µÄ¶ÁÊý£¬ÃܶȵļÆË㣬ÊôÓÚÓÐÄѶȵÄÌ⣬ѧÉúÃÇÈÝÒ׳ö´í£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

22¡¢ÓÐÒ»¸öÕý·½ÐνðÊô¿é£¬²»ÖªµÀÊÇʲô²ÄÁÏÖƳɵģ®ÎªÁËÈ·¶¨ÆäÉí·Ý£¬ÎïÀíÀÏʦ°ÑÕâ¸öÈÎÎñ½»¸øС³¬£®ËûÏ룺²â³öÕâÖÖÎïÖʵÄÃܶȲ»¾Í¿ÉÒÔÅжÏÁËÂð£¿ËûÊ×ÏÈÕÒÀ´ÁËÒ»°Ñ×îС·Ö¶ÈÖµÊǺÁÃ׵Ŀ̶ȳߣ¬×Ðϸ²â³ö½ðÊô¿éµÄ±ß³¤ÊÇ31.10mm£¬Ëû·Ç³£µÃÒ⣬¾õµÃµÄÕâ¸ö²âÁ¿½á¹û¾ø¶ÔûÓÐÎó²î£®½Ó×Å£¬Ëã³ö½ðÊô¿éµÄÌå»ýΪ30.1£¬È»ºóÓÃÌìƽ³Æ³ö½ðÊô¿éµÄÖÊÁ¿£¨½á¹ûÈçͼËùʾ£©£¬Ð¡³¬¶Á³ö81.2g£¬¸ù¾ÝÃܶȹ«Ê½Ëã³ö¦Ñ=2.7g/cm3£®ÓÚÊÇ£¬Ëû¿Ï¶¨µØ˵Õâ¸öÕý·½ÌåÊÇÂÁ£®ÇëÄãÖ¸³öС³¬ÔÚ¼ø±ðÎïÖʵÄʵÑé¹ý³ÌÖеÄÎå´¦´íÎó£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ΪÁ˼ø±ð½ðÊôµÄ²ÄÁÏ£¬ÏÂÃæÊÇСÃ÷ͬѧµÄʵÑé²Ù×÷¹ý³ÌºÍʵÑéÇé¾°£®
A£®ÓÃϸÏß½«½ðÊô¿éË©ºÃÇáÇá·ÅÈËÁ¿Í²ÄÚµÄË®ÖУ¬²â³öË®ºÍ½ðÊô¿éµÄ×ÜÌå»ýV2£»
B£®¼ÆËã½ðÊô¿éµÄÃܶȣ»
C£®ÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®£¬²â³öË®µÄÌå»ýV1£»
D£®ÓÃÌìƽ³Æ³ö½ðÊô¿éµÄÖÊÁ¿m0£»
E£®°ÑÌìƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬µ÷½ÚƽºâÂÝĸ£¬Ê¹Ììƽƽºâ£®
£¨1£©ÕýÈ·µÄ²Ù×÷¹ý³ÌºÍ˳ÐòΪ£¨ÌîÐòºÅ£©£®
EDCAB
EDCAB
£»
£¨2£©Ç뽫ͼÖвâÁ¿µ½µÄÊý¾ÝÌîÔÚ±í¸ñÖУ¬²¢Ìîд±í¸ñÖеÄȱÏî´¦
½ðÊô¿éÖÊÁ¿m0/g Á¿Í²ÖÐË®Ìå»ý  V1/cm3
·ÅÈë½ðÊô¿éºóµÄ×ÜÌå»ýV2/cm3
·ÅÈë½ðÊô¿éºóµÄ×ÜÌå»ýV2/cm3
½ðÊô¿éµÄÌå»ýV/cm3 ½ðÊô¿éµÄÃܶȦÑ/£¨kg?m-3£©
54
54
20
20
40
40
20
20
2.7¡Á103
2.7¡Á103
£¨3£©¾­²é±í¶ÔÕÕ¿ÉÖª¸Ã½ðÊô¿ÉÄÜÊÇ
ÂÁ
ÂÁ
£®
½ðÊô ÃܶÈ
Í­ 8.9¡Á103
Ìú 7.9¡Á103
ÂÁ 2.7¡Á103
Ǧ 11.3¡Á103
Òø 10.5¡Á103

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

ΪÁ˼ø±ð½ðÊôµÄ²ÄÁÏ£¬ÏÂÃæÊÇСÃ÷ͬѧµÄʵÑé²Ù×÷¹ý³ÌºÍʵÑéÇé¾°£®
A£®ÓÃϸÏß½«½ðÊô¿éË©ºÃÇáÇá·ÅÈËÁ¿Í²ÄÚµÄË®ÖУ¬²â³öË®ºÍ½ðÊô¿éµÄ×ÜÌå»ýV2£»
B£®¼ÆËã½ðÊô¿éµÄÃܶȣ»
C£®ÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®£¬²â³öË®µÄÌå»ýV1£»
D£®ÓÃÌìƽ³Æ³ö½ðÊô¿éµÄÖÊÁ¿m0£»
E£®°ÑÌìƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬µ÷½ÚƽºâÂÝĸ£¬Ê¹Ììƽƽºâ£®
£¨1£©ÕýÈ·µÄ²Ù×÷¹ý³ÌºÍ˳ÐòΪ£¨ÌîÐòºÅ£©£®______£»
£¨2£©Ç뽫ͼÖвâÁ¿µ½µÄÊý¾ÝÌîÔÚ±í¸ñÖУ¬²¢Ìîд±í¸ñÖеÄȱÏî´¦
½ðÊô¿éÖÊÁ¿m0/gÁ¿Í²ÖÐË®Ìå»ý V1/cm3______½ðÊô¿éµÄÌå»ýV/cm3½ðÊô¿éµÄÃܶȦÑ/£¨kg?m-3£©
______________________________
£¨3£©¾­²é±í¶ÔÕÕ¿ÉÖª¸Ã½ðÊô¿ÉÄÜÊÇ______£®
½ðÊôÃܶÈ
Í­8.9¡Á103
Ìú 7.9¡Á103
ÂÁ2.7¡Á103
Ǧ11.3¡Á103
Òø10.5¡Á103

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2011-2012ѧÄê½­ËÕÊ¡ËÕÖÝÊаËÄ꼶£¨Ï£©ÆÚÖÐÎïÀíÄ£ÄâÊÔ¾í£¨Ò»£©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ΪÁ˼ø±ð½ðÊôµÄ²ÄÁÏ£¬ÏÂÃæÊÇСÃ÷ͬѧµÄʵÑé²Ù×÷¹ý³ÌºÍʵÑéÇé¾°£®
A£®ÓÃϸÏß½«½ðÊô¿éË©ºÃÇáÇá·ÅÈËÁ¿Í²ÄÚµÄË®ÖУ¬²â³öË®ºÍ½ðÊô¿éµÄ×ÜÌå»ýV2£»
B£®¼ÆËã½ðÊô¿éµÄÃܶȣ»
C£®ÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®£¬²â³öË®µÄÌå»ýV1£»
D£®ÓÃÌìƽ³Æ³ö½ðÊô¿éµÄÖÊÁ¿m£»
E£®°ÑÌìƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬µ÷½ÚƽºâÂÝĸ£¬Ê¹Ììƽƽºâ£®
£¨1£©ÕýÈ·µÄ²Ù×÷¹ý³ÌºÍ˳ÐòΪ£¨ÌîÐòºÅ£©£®______£»
£¨2£©Ç뽫ͼÖвâÁ¿µ½µÄÊý¾ÝÌîÔÚ±í¸ñÖУ¬²¢Ìîд±í¸ñÖеÄȱÏî´¦
½ðÊô¿éÖÊÁ¿m/gÁ¿Í²ÖÐË®Ìå»ý  V1/cm3______½ðÊô¿éµÄÌå»ýV/cm3½ðÊô¿éµÄÃܶȦÑ/
______________________________
£¨3£©¾­²é±í¶ÔÕÕ¿ÉÖª¸Ã½ðÊô¿ÉÄÜÊÇ______£®
½ðÊôÃܶÈ
Í­8.9×103
Ìú 7.9×103
ÂÁ2.7×103
Ǧ11.3×103
Òø10.5×103


²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸