СÃ÷ͬѧÓÃʵÑé²âÁ¿Ñ§Ð£Ãâ·Ñ·¢·ÅÅ£Ä̵ÄÃܶȣº

£¨1£©Ê×ÏÈ£¬ÌìƽӦ______·ÅÖã»È»ºóµ÷½ÚÌìƽºáÁºÆ½ºâ£ºÈôÖ¸ÕëÆ«Ïò·Ö¶ÈÅÌÖÐÑëºìÏßµÄÓҲ࣬´ËʱӦÏò______£¨×ó/ÓÒ£©Òƶ¯Æ½ºâÂÝĸ£¬²ÅÄÜʹÌìƽƽºâ£®
£¨2£©ÈçͼËùʾ¼×¡¢ÒÒ¡¢±ûͼÊÇËû°´Ë³Ðò½øÐÐʵÑéµÄʾÒâͼ£»ÒÀ¾ÝͼÖеÄÊý¾Ý½«Ï±íµÄ¿Õ¸ñ²¹³äÍêÕû
ÎïÀíÁ¿/µ¥Î»¿Õ±­µÄÖÊÁ¿/g±­ºÍÅ£Ä̵ÄÖÊÁ¿/gÅ£Ä̵ÄÌå»ý/mlÅ£Ä̵ÄÃܶÈ/Kg/m3
²âÁ¿Öµ
£¨3£©ÔÚÒÔÉÏʵÑéÖУ¬ÉÕ±­ÄÚ±Ú»á²ÐÁô²¿·ÖÅ£Ä̶øµ¼ÖÂʵÑé½á¹û______£¨Æ«´ó/ƫС£©£¬Ö»Òª°Ñ£¨2£©ÖÐʵÑé˳Ðò¸Ä³É______¾ÍÄܱÜÃâÓɴ˲úÉúµÄʵÑéÎó²î£®
£¨4£©Ð¡Ã÷ÏëÖªµÀÕâÖÖÅ£ÄÌÊÇ·ñ²ôË®£®Í¨¹ý²éÔÄ×ÊÁϵÃÖª£¬ÔÚÅ£ÄÌÖвôË®ºó£¬²ôË®º¬Á¿ÓëÅ£ÄÌÃܶȵĹØϵÈçϱíËùʾ£®ÔòÕâÖÖÅ£ÄÌ______
Å£ÄÌÖвôË®º¬Á¿0%10%20%30%40%50%60%70%80%90%100%
Å£ÄÌÃܶÈ/g/cm31.0301.0271.0241.0211.0181.0151.0121.0091.0061.0031.000
A£®Î´²ôË®B£®²ôË®º¬Á¿20%ÒÔÏÂC£®²ôË®º¬Á¿20%¡«30%D£®²ôË®º¬Á¿30%ÒÔÉÏ£®

£¨1£©Ê×ÏÈ£¬ÌìƽӦÔÚˮƽ×ÀÃæÉÏ·ÅÖã»È»ºóµ÷½ÚÌìƽºáÁºÆ½ºâ£ºÈôÖ¸ÕëÆ«Ïò·Ö¶ÈÅÌÖÐÑëºìÏßµÄÓҲ࣬´ËʱӦÏò×ó²àµ÷½ÚƽºâÂÝĸ£¬Ö±µ½Ö¸ÕëÖ¸ÔÚ·Ö¶ÈÅÌÖÐÑ룮
£¨2£©ÔÚÌìƽµÄ±ê³ßÉÏ£¬1gÖ®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñ´ú±íµÄÖÊÁ¿ÊÇ0.2g£¬¼´ÌìƽµÄ·Ö¶ÈֵΪ0.2g£»
¼×ͼÖУ¬ÉÕ±­µÄÖÊÁ¿Îªm1=20g+10g+5g+2g=37g£¬
ÒÒͼÖУ¬ÉÕ±­ºÍÅ£Ä̵Ä×ÜÖÊÁ¿Îªm2=50g+20g+10g+1.2g=81.2g£¬
Å£Ä̵ÄÖÊÁ¿Îªm=m2-m1=81.2g-37g=44.2g£»
±ûͼÖУ¬ÔÚÁ¿Í²ÉÏ£¬10mlÖ®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñ´ú±í2ml£¬¼´Á¿Í²µÄ·Ö¶ÈֵΪ2ml£¬ÒºÃæ×î°¼´¦Óë40mlÏàƽ£¬ËùÒÔÅ£Ä̵ÄÌå»ýΪV=40ml=40cm3£»
Å£Ä̵ÄÃܶÈΪ¦Ñ=
m
V
=
44.2g
40cm3
=1.105g/cm3=1.105¡Á103kg/m3£»
£¨3£©ÏȲâ¿ÕÉÕ±­µÄÖÊÁ¿£¬ÔÙ²âÉÕ±­ºÍÅ£Ä̵Ä×ÜÖÊÁ¿£¬ÔÙ½«Å£Ä̵¹ÈëÁ¿Í²ÖвâÌå»ýʱ£¬ÒòΪÉÕ±­±Ú»á²ÐÁô²¿·ÖÅ£ÄÌ£¬ËùÒÔÅ£Ä̵ÄÌå»ý¼õСÁË£¬¸ù¾ÝÃܶȹ«Ê½¦Ñ=
m
V
£¬ÖÊÁ¿²»±ä£¬Ìå»ý¼õС£¬ÃܶÈÖµ¾ÍÔö´óÁË£¬ËùÒÔ½á¹ûÆ«´ó£®
Ϊ·ÀÖ¹ÈÝÆ÷±ÚÕ³ÒºÌåÓ°ÏìËù²â½á¹û£¬ÒªÏȲâÉÕ±­ºÍÅ£ÄÌ×ÜÖÊÁ¿£¬ÔÙ½«Å£Ä̵¹ÈëÁ¿Í²Öвâ³öµ¹³öµÄÅ£Ä̵ÄÌå»ý£¬Ê£ÓàÅ£Ä̺ÍÉÕ±­µÄ×ÜÖÊÁ¿£¬Ôòµ¹³öµÄÅ£ÄÌÖÊÁ¿¿ÉÇó£®Å£Ä̵ÄÃܶȿÉÓõ¹³öµÄÅ£ÄÌÖÊÁ¿ºÍµ¹³öµÄÅ£Ä̵ÄÌå»ýÇó³ö£¬ÕâÑù¾Í±ÜÃâÁËÎó²îµÄ²úÉú£®ËùÒÔʵÑé˳ÐòÓ¦ÊÇÒÒ¡¢±û¡¢¼×£®
£¨4£©¸ù¾Ý¹«Ê½£¬¼ÆËã³öÅ£ÄÌÑùÆ·µÄÃܶȦÑ=1.105g/cm3£®¶ÔÕÕ±íÖÐÊý¾Ý¿ÉÖª£¬ÕâÖÖÅ£Ä̵ÄÃܶȱȲôË®º¬Á¿0%µÄÅ£ÄÌÃܶȻ¹Òª´ó£¬ËµÃ÷Å£ÄÌûÓвôË®£®¹ÊÑ¡A£®
¹Ê´ð°¸Îª£º
£¨1£©ÔÚˮƽ×ÀÃæÉÏ£»×ó£»
£¨2£©
ÎïÀíÁ¿/µ¥Î»¿Õ±­µÄÖÊÁ¿/g±­ºÍÅ£Ä̵ÄÖÊÁ¿/gÅ£Ä̵ÄÌå»ý/mlÅ£Ä̵ÄÃܶÈ/Kg/m3
²âÁ¿Öµ3781.2401.105¡Á103
£¨3£©Æ«´ó£»ÒÒ±û¼×£»£¨4£©A£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÔÚ²âÁ¿Ò»¿é²»¹æÔòС¿óʯ£¨ÖÊÁ¿·Ö²¼¾ùÔÈ£©ÃܶȵÄʵÑéÖУº

£¨1£©½«Ììƽ·ÅÖÃÔÚˮƽ̨ÉÏ£¬ÓÃÄ÷×Ó°ÑÓÎÂëÇáÇᲦÖÁ±ê³ß×ó²à______룬µ÷½ÚƽºâÂÝĸʹºáÁº______ƽºâ£®
£¨2£©ÓÃÌìƽ²âС¿óʯµÄÖÊÁ¿£¬µ±ÅÌÖÐËù¼ÓíÀÂëλÖÃÈç¼×ͼËùʾʱÌìƽƽºâ£¬Ôò´ËС¿óʯµÄÖÊÁ¿Îª______g£¬ÔÚÁ¿Í²ÄÚ×°ÓÐÒ»¶¨Á¿µÄË®£¬¸ÃС¿óʯ·ÅÈëÇ°ºóµÄÇé¿öÈçÒÒͼËùʾ£¬Ôò¿óʯµÄÌå»ýΪ______cm3£¬¿óʯµÄÃܶÈΪ______g/cm3£®
£¨3£©Ð¡¿óʯĥËðºó£¬ËüµÄÃܶÈ______£¨Ñ¡Ìî¡°±ä´ó¡±¡¢¡°²»±ä¡±»ò¡°±äС¡±£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

СÖÜÒª²âÁ¿Ä³½ðÊô¿éµÄÃܶȣ¬ÊµÑé¹ý³ÌÈçÏ£º
£¨1£©ËûÓ¦°ÑÌìƽ·ÅÔÚ______×ÀÃæÉÏ£¬½«ÓÎÂëÒÆÖÁ±ê³ß×ó¶ËµÄÁã¿Ì¶ÈÏß´¦£¬·¢ÏÖÖ¸ÕëÆ«Ïò·Ö¶ÈÅÌ×ó²à£¬ËûÓ¦½«Æ½ºâÂÝĸÏò______£¨Ñ¡Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©Òƶ¯£¬Ê¹ÌìƽºáÁºÆ½ºâ£®
£¨2£©Óõ÷ºÃµÄÌìƽ²â½ðÊô¿éµÄÖÊÁ¿£¬ÌìƽÔٴεÄÇé¾°Èçͼ£¨a£©Ëùʾ£¬½ðÊô¿éµÄÖÊÁ¿Îª
______g£»ËûÓÃÁ¿Í²²â½ðÊô¿éµÄÌå»ýʱ£¬½ðÊô¿é·ÅÈëÁ¿Í²Ç°ºóµÄÒºÃæ¸ß¶ÈÈçͼ£¨b£©Ëùʾ£¬½ðÊô¿éµÄÌå»ýΪ______cm3£®
£¨3£©Ëù²â½ðÊô¿éµÄÃܶÈΪ______g/cm3£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

ÔÚ²âÁ¿ÑÎË®ÃܶȵÄʵÑéÖУ®
£¨1£©Ð¡»¨ÏȽ«ÑÎË®µ¹ÈëÁ¿Í²£¬Èçͼ¼×Ëùʾ£¬ÔòÑÎË®ÊÇÌå»ýΪ ______cm3£»½Ó×ÅËýÓÃÌìƽ²â³ö¿ÕÉÕ±­µÄÖÊÁ¿Îª30g£¬È»ºó½«Á¿Í²ÖеÄÑÎË®µ¹ÈëÉÕ±­£¬ÓÃÌìƽ²âÁ¿ÉÕ±­ºÍÑÎË®ÊÇ×ÜÖÊÁ¿£¬ÌìƽƽºâʱµÄÇé¾°ÈçͼÒÒËùʾ£®ÔòÉÕ±­ºÍÑÎË®µÄ×ÜÖÊÁ¿Îª ______g£®
£¨2£©¸ù¾ÝÒÔÉÏʵÑéÊý¾Ý¼ÆËã³öÑÎË®µÄÃܶÈΪ ______g/cm3£¬Óø÷½·¨²âµÃµÄÃܶȱÈÕæʵֵƫ ______£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

СΰͬѧÀûÓÃÌìƽºÍÁ¿Í²²â³ÈÖ­µÄÃܶȣ¬ÏÂÁвÙ×÷²½ÖèÖжàÓàµÄÊÇ£¨¡¡¡¡£©
A£®ÓÃÌìƽ²âÁ¿¿ÕÉÕ±­µÄÖÊÁ¿
B£®½«³ÈÖ­µ¹ÈëÉÕ±­ÖУ¬ÓÃÌìƽ²âÁ¿ÉÕ±­ºÍ³ÈÖ­µÄ×ÜÖÊÁ¿
C£®½«ÉÕ±­ÖеijÈÖ­µ¹ÈëÁ¿Í²ÖÐÒ»²¿·Ö£¬²â³öÁ¿Í²ÖгÈÖ­µÄÌå»ý
D£®ÓÃÌìƽ²âÁ¿ÉÕ±­ºÍÊ£Óà³ÈÖ­µÄ×ÜÖÊÁ¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÓÃÌìƽºÍÁ¿Í²²âÁ¿ÑÎË®µÄÃܶȣº
£¨1£©ÔÚʹÓÃÍÐÅÌÌìƽǰҪ¶ÔÌìƽ½øÐе÷½Ú£®°´ÕýÈ·µÄ˳Ðò½«ÏÂÁи÷²½ÖèÇ°µÄ×ÖĸÅÅÁÐ______£®
A£®×é×°ºÃÌìƽ£¬°ÑÌìƽ·ÅÔÚˮƽ̨ÃæÉÏ£®
B£®µ÷½ÚÌìƽµÄƽºâÂÝĸ£¬Ê¹ÌìƽºáÁºË®Æ½Æ½£®
C£®°ÑÓÎÂëÖÃÓÚ±ê³ßµÄÁã¿ÌÏß´¦£®
£¨2£©ÊµÑéËùÒÀ¾ÝµÄ¹«Ê½ÊÇ______£®
£¨3£©ÊµÑé¹ý³Ì£º
a£®ÔÚ²£Á§±­ÖÐÊ¢ÉÏÑÎË®£¬·ÅÔÚµ÷½ÚºÃµÄÌìƽ×óÅÌÉϳÆÁ¿£¬µ±ÌìƽÖØÐÂƽºâʱ£¬¶Á³öíÀÂëºÍÓÎÂëµÄ¶ÁÊýΪ124.2g£®£¨ÒÑÌîÈë±íÖУ©
b£®°Ñ²£Á§±­ÖеÄÑÎË®µ¹ÈëÁ¿Í²ÖÐÒ»²¿·Ö£¬Èçͼ£¬¼ÇÏÂÁ¿Í²ÖÐÑÎË®µÄÌå»ý²¢ÌîÈë±íÖУ®
c£®°Ñ²£Á§±­ºÍÊ£ÓàÑÎË®·ÅÔÚÌìƽ×óÅÌÉϳÆÁ¿£¬µ±ÌìƽÖØÐÂƽºâʱ£¬ËùÓÃíÀÂëºÍÓÎÂëλÖÃÈçͼËùʾ£¬½«²£Á§±­ºÍÊ£ÓàÑÎË®µÄÖÊÁ¿ÌîÈë±íÖУ®
d£®¼ÆËã³öÑÎË®µÄÖÊÁ¿ºÍÃܶȣ¬ÌîÈë±íÖУ®
²£Á§±­ºÍÑÎË®µÄÖÊÁ¿m1/g²£Á§±­ºÍÊ£ÓàÑÎË®µÄÖÊÁ¿m2/gÁ¿Í²ÖÐÑÎË®µÄÖÊÁ¿m/gÁ¿Í²ÖÐÑÎË®µÄÌå»ýV/cm3ÑÎË®µÄÃܶÈ
¦Ñ/£¨g/m3£©
124.2________________________

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

СÃ÷ÔÚʵÑéÊÒ×ö¡°ÓÃÌìƽºÍÁ¿Í²²âÁ¿ÑÎË®Ãܶȡ±µÄʵÑ飺ËûÏȲâ³öÉÕ±­ºÍÊÊÁ¿ÑÎË®×ÜÖÊÁ¿Îª144.2g£¬ÔÙ°ÑÉÕ±­ÖеIJ¿·ÖÑÎË®µ¹ÈëÁ¿Í²ÖУ¬Èçͼ¼×Ëùʾ£¬¶Á³öÁ¿Í²ÖÐÑÎË®µÄÌå»ýΪ______mL£¬½Ó×ÅÓÖÓÃÌìƽ³Æ³öÉÕ±­ºÍÊ£ÓàÑÎË®×ÜÖÊÁ¿£¬ËùÓÃíÀÂëºÍÓÎÂëλÖÃÈçͼÒÒËùʾ£¬ÉÕ±­ºÍÊ£ÓàÑÎË®µÄÖÊÁ¿Îª______g£®ÔòÑÎË®µÄÃܶÈΪ______kg/m3£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

СÃ÷¼ÒÓÐһöÖÊÁ¿Îª2.1gµÄÒø±Ò£¬ËûÏëÓÃÁ¿Í²²âËã³ö¸ÃÒø±ÒÊDz»ÊÇ´¿ÒøµÄ£¨¦ÑÒø=10.5g/cm3£©£¬ËùÓõÄÁ¿Í²¹æ¸ñÈçͼËùʾ£¬´ËÁ¿Í²µÄ·Ö¶ÈÖµÊÇ______mL£¬ËûÄÜ·ñ¼ø±ð³ö¸ÃÒø±Ò£¿______£¨ÄÜ/²»ÄÜ£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

Ìå»ýΪ100 cm3µÄÌú¿é½þûˮÖÐʱ£¬ÅÅ¿ªË®µÄÖØÁ¦ÊÇ       N£¬Êܵ½µÄ¸¡Á¦ÊÇ         N¡£Èç¹û½«Ëü½þû¾Æ¾«ÖУ¬Êܵ½µÄ¸¡Á¦ÊÇ          N¡££¨ gÈ¡10 N£¯kg£¬¦Ñ¾Æ¾«=0.8¡Á103 kg/ m3£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸