ÌâÄ¿ÄÚÈÝ

A£®½«Ð¡¿óʯÓÃϸÏßϵºÃºóÂýÂýµØ·ÅÈëÁ¿Í²Öв¢¼ÇÏÂË®ºÍС¿óʯ×ܵÄÌå»ý£®
B£®°ÑÓÎÂë·ÅÔÚ±ê³ßµÄÁã¿Ì¶ÈÏß´¦£¬µ÷½ÚºáÁºÉϵÄÂÝĸ£¬Ê¹ºáÁºÆ½ºâ£®
C£®°ÑÌìƽ·ÅÔÚˮƽ×ÀÃæÉÏ£®
D£®½«Ð¡¿óʯ·ÅÔÚÌìƽ×óÅÌÖУ¬ÔÚÓÒÅÌÖÐÔö¼õíÀÂë²¢Òƶ¯ÓÎÂëÖ±ÖÁºáÁºÆ½ºâ£®
E£®ÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®²¢¼ÇÏÂË®µÄÌå»ý£®
£¨1£©ÕýÈ·µÄʵÑé²Ù×÷˳ÐòÊÇ
CBDEA
CBDEA
£¨Ö»Ìî×ÖĸÐòºÅ£©£®£¨2£©ÔÚµ÷½ÚÌìƽʱ£¬·¢ÏÖÖ¸ÕëλÖÃÈçͼ¼×Ëùʾ£¬´ËʱӦ½«Æ½ºâÂÝĸÏò
×ó
×ó
µ÷£¨Ñ¡Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©£®£¨3£©Óõ÷½ÚºÃµÄÌìƽ³ÆС¿óʯµÄÖÊÁ¿£®Ììƽƽºâʱ£¬·ÅÔÚÓÒÅÌÖеÄíÀÂëºÍÓÎÂëµÄλÖÃÈçͼÒÒËùʾ£»Á¿Í²Á¿³öС¿óʯµÄÌå»ýÈçͼ±ûËùʾ£¬ÓÉ´Ë¿ÉÖª£¬Ð¡¿óʯµÄÃܶȦÑ=
3.1¡Á103
3.1¡Á103
kg/m3£®£¨4£©ÊµÑéÖУ¬ÓÉÓÚСӢͬѧ²»Ð¡ÐÄ°ÑÁ¿Í²´òËéÁË£¬µ«ÊµÑéÊÒÀïÒÑûÓÐÁ¿Í²ÁË£¬ÀÏʦ¾Í¸øËýÔö¼ÓÁËÒ»¸öÒçË®±£®ÏÖÇëÄã°ïËýÏë°ì·¨²â³öС¿óʯµÄÌå»ý£¬Ð´³ö¼òÒªµÄʵÑé²½Ö裮
·ÖÎö£º£¨1£©²â¹ÌÌåµÄÃܶÈÒªÏÈÓÃÌìƽ²â¹ÌÌåµÄÖÊÁ¿£¬ÔÙ¸ù¾ÝÅÅË®·¨ÓÃÁ¿Í²²â³ö¹ÌÌåµÄÌå»ý£»
£¨2£©Ììƽµ÷½ÚƽºâµÄÔÔòÊÇ¡°×óÆ«ÓÒµ÷£¬ÓÒÆ«×óµ÷¡±£¬Ö¸ÕëÖ¸ÔÚ·Ö¶ÁÅÌÖÐÑë×ó²à£¬½«Æ½ºâÂÝĸÏòÓÒµ÷½Ú£¬Ö¸ÔÚ×ó²à£¬Æ½ºâÂÝĸÏòÓÒµ÷½Ú£»
£¨3£©Ð¡¿óʯµÄÖÊÁ¿mµÈÓÚíÀÂëµÄÖÊÁ¿¼ÓÓÎÂë¶ÔÓ¦µÄ¿Ì¶ÈÖµ£¬Ð¡¿óʯµÄÌå»ýVµÈÓÚÁ¿Í²ÒºÃæÌå»ýÖ®²î£¬Óù«Ê½¦Ñ=
¼ÆËãС¿óʯµÄÃܶȣ»
£¨4£©Ð¡¿óʯµÄÌå»ýµÈÓÚËü½þûÔÚË®ÖÐʱÅÅ¿ªµÄË®µÄÌå»ý£¬ÀûÓÃÒçË®±ºÍÉÕ±£¬ÊÕ¼¯Ð¡¿óʯ½þûˮÖÐʱÒç³öµÄË®£¬²¢²â³öÖÊÁ¿¼ÆËã³öÒç³öË®µÄÌå»ý£®
£¨2£©Ììƽµ÷½ÚƽºâµÄÔÔòÊÇ¡°×óÆ«ÓÒµ÷£¬ÓÒÆ«×óµ÷¡±£¬Ö¸ÕëÖ¸ÔÚ·Ö¶ÁÅÌÖÐÑë×ó²à£¬½«Æ½ºâÂÝĸÏòÓÒµ÷½Ú£¬Ö¸ÔÚ×ó²à£¬Æ½ºâÂÝĸÏòÓÒµ÷½Ú£»
£¨3£©Ð¡¿óʯµÄÖÊÁ¿mµÈÓÚíÀÂëµÄÖÊÁ¿¼ÓÓÎÂë¶ÔÓ¦µÄ¿Ì¶ÈÖµ£¬Ð¡¿óʯµÄÌå»ýVµÈÓÚÁ¿Í²ÒºÃæÌå»ýÖ®²î£¬Óù«Ê½¦Ñ=
m |
V |
£¨4£©Ð¡¿óʯµÄÌå»ýµÈÓÚËü½þûÔÚË®ÖÐʱÅÅ¿ªµÄË®µÄÌå»ý£¬ÀûÓÃÒçË®±ºÍÉÕ±£¬ÊÕ¼¯Ð¡¿óʯ½þûˮÖÐʱÒç³öµÄË®£¬²¢²â³öÖÊÁ¿¼ÆËã³öÒç³öË®µÄÌå»ý£®
½â´ð£º½â£º£¨1£©²âС¿óʯµÄÃܶÈÓ¦ÏȽ«Ììƽ·ÅºÃµ÷ƽ£¬²â³öС¿óʯµÄÖÊÁ¿m£¬ÔÙÔÚÁ¿Í²Öе¹ÈëÊÊÁ¿µÄË®£¬¶Á³öÌå»ýΪV1£¬È»ºó½«Ð¡¿óʯ·ÅÈëÁ¿Í²£¬¶Á³öÒºÃæ¶ÔÓ¦µÄÌå»ýV2£¬¿óʯµÄÌå»ýV=V2-V1£¬¹Ê˳ÐòΪCBDEA£»
£¨2£©Í¼Ê¾Ö¸ÕëÖ¸Ôڿ̶ÈÅÌÖÐÑëÓҲ࣬ÏòÓÒÆ«Ó¦¸Ã½«ÓÎÂëÏò×óµ÷½Ú£»
£¨3£©Ð¡¿óʯµÄÖÊÁ¿m=50g+10g+2g=62g£¬Ìå»ýV=80cm3-60cm3=20cm3£¬
С¿óʯµÄÃܶȦÑ=
=
=3.1g/cm3=3.1¡Á103kg/m3£»
£¨4£©²â³öСÉÕ±µÄÖÊÁ¿m1£¬½«Ê¯¿é½þûÔÚÊ¢ÂúË®µÄÒçË®±ÖУ¬ÓÃÉÕ±ÊÕ¼¯Òç³öµÄË®£¬²â³öÉÕ±ÓëÒç³öË®µÄ×ÜÖÊÁ¿m2£¬ÔòÒç³öË®µÄÖÊÁ¿mÅÅ=m2-m1£¬Ð¡¿óʯµÄÌå»ýV=VÅÅ=
=
£»
¹Ê´ð°¸Îª£º£¨1£©CBDEA£»£¨2£©×󣻣¨3£©3.1¡Á103£»£¨4£©¢Ù½«Ð¡¿óʯÂýÂý½þûʢÂúË®µÄÒçË®±ÖУ¬Í¬Ê±ÓÃÉÕ±ÊÕ¼¯´ÓÒçË®±ÖÐÒç³öµÄË®£»ÓÃÌìƽ²â³öÒç³öË®µÄÖÊÁ¿mÅÅ£®¢ÚÀûÓÃVʯ=VÅÅ=
=
µÃ³öС¿óʯµÄÌå»ý£®
£¨2£©Í¼Ê¾Ö¸ÕëÖ¸Ôڿ̶ÈÅÌÖÐÑëÓҲ࣬ÏòÓÒÆ«Ó¦¸Ã½«ÓÎÂëÏò×óµ÷½Ú£»
£¨3£©Ð¡¿óʯµÄÖÊÁ¿m=50g+10g+2g=62g£¬Ìå»ýV=80cm3-60cm3=20cm3£¬
С¿óʯµÄÃܶȦÑ=
m |
V |
62g |
20cm3 |
£¨4£©²â³öСÉÕ±µÄÖÊÁ¿m1£¬½«Ê¯¿é½þûÔÚÊ¢ÂúË®µÄÒçË®±ÖУ¬ÓÃÉÕ±ÊÕ¼¯Òç³öµÄË®£¬²â³öÉÕ±ÓëÒç³öË®µÄ×ÜÖÊÁ¿m2£¬ÔòÒç³öË®µÄÖÊÁ¿mÅÅ=m2-m1£¬Ð¡¿óʯµÄÌå»ýV=VÅÅ=
mÅÅ |
¦ÑË® |
m2-m1 |
¦ÑË® |
¹Ê´ð°¸Îª£º£¨1£©CBDEA£»£¨2£©×󣻣¨3£©3.1¡Á103£»£¨4£©¢Ù½«Ð¡¿óʯÂýÂý½þûʢÂúË®µÄÒçË®±ÖУ¬Í¬Ê±ÓÃÉÕ±ÊÕ¼¯´ÓÒçË®±ÖÐÒç³öµÄË®£»ÓÃÌìƽ²â³öÒç³öË®µÄÖÊÁ¿mÅÅ£®¢ÚÀûÓÃVʯ=VÅÅ=
mÅÅ |
¦ÑË® |
m2-m1 |
¦ÑË® |
µãÆÀ£ºÌìƽʹÓÃÇ°Òª×öµ½¡°·Å¡¢²¦¡¢µ÷¡±£¬µ÷½ÚƽºâµÄÔÔò¡°×óÆ«ÓÒµ÷¡¢ÓÒÆ«×óµ÷¡¢ÏÈ¿ìºóÂý¡±£¬³ÆÁ¿Ê±¼ÓíÀÂë¡°ÓÉ´óµ½Ð¡¡¢×îºó²¦ÓÎÂëʹÌìƽƽºâ¡±£¬ÎïÌåÖÊÁ¿Îª¡°íÀÂëÖÊÁ¿¼ÓÓÍÂë¶ÔÓ¦µÄ¿Ì¶ÈÖµ¡±£®
²â¹ÌÌåµÄÃܶÈÒ»°ãÏÈÓÃÌìƽ²â³ö¹ÌÌåµÄÖÊÁ¿£¬¸ù¾ÝÅÅË®·¨²â³ö¹ÌÌåµÄÌå»ý£¬×îºóÓù«Ê½¦Ñ=
¼ÆËã³ö¹ÌÌåµÄÃܶȣ®
²â¹ÌÌåµÄÃܶÈÒ»°ãÏÈÓÃÌìƽ²â³ö¹ÌÌåµÄÖÊÁ¿£¬¸ù¾ÝÅÅË®·¨²â³ö¹ÌÌåµÄÌå»ý£¬×îºóÓù«Ê½¦Ñ=
m |
V |

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ij°àͬѧµ½ÊµÑéÊÒ×ö¡°²â¶¨Ð¡µÆÅݶ¹¦ÂÊ¡±µÄʵÑ飮±»²âСµÆÅݵĶµçѹΪ3.8V£¬µç×èԼΪ10¦¸£®ÊµÑéÊÒÓÐÈçÏÂÆ÷²Ä£ºµçÔ´£¨µçѹΪ6V£©¡¢µçÁ÷±í£¨0¡«0.6A¡¡0¡«3A£©¡¢µçѹ±í£¨0¡«3V¡¡0¡«15V£©¡¢¿ª¹Ø¸÷Ò»Ö»£¬µ¼ÏßÈô¸É£¬»¬¶¯±ä×èÆ÷ÈýÖ»£ºR1£¨5¦¸¡¡0.5A£©¡¢R2£¨10¦¸¡¡0.5A£©¡¢R3£¨500¦¸¡¡1A£©£®Í¬Ñ§ÃÇÉè¼ÆµÄµç·Èçͼ1Ëùʾ£º

£¨1£©°ÑʵÎïͼ2Á¬½ÓÍêÕû£¨°´ÕÕµç·ͼµÄÁ¬½Ó·½Ê½£©£®
£¨2£©»¬¶¯±ä×èÆ÷ӦѡÓÃ______£¨Ñ¡Ìî¡°R1¡±¡¢¡°R2¡±¡¢¡°R3¡±£©£»
£¨3£©ÔÚ¿ª¹Ø±ÕºÏÇ°£¬Ó¦½«»¬Æ¬P·ÅÔÚ______¶Ë£®£¨Ñ¡Ìî¡°A¡±»ò¡°B¡±£©
£¨4£©¾ý¾ýÕýÈ·µØÁ¬½ÓºÃµç·£¬±ÕºÏ¿ª¹Ø£¬ÎÞÂÛÔõÑùµ÷½Ú»¬¶¯±ä×èÆ÷µÆÅݶ¼²»ÁÁ£®Ð¡À¼·ÖÎö²úÉú¹ÊÕϵÄÔÒò¿ÉÄÜÊÇ£º¢ÙСµÆÅݵÆË¿¶ÏÁË£»¢ÚСµÆÅݶÌ·£»¢Û»¬¶¯±ä×èÆ÷¿ªÂ·£®£¨µçÁ÷±í¡¢µçѹ±í¾ùÎÞ¹ÊÕÏ£©ÇëÄãÒÀ¾Ý±íÖеçÁ÷±í¡¢µçѹ±íʾÊý¿ÉÄܳöÏֵļ¸ÖÖÇé¿ö£¬°ï¾ý¾ýÅжϹÊÕÏÔÒò£¬²¢½«ÆäÐòºÅÌîдÔÚ±íÖжÔÓ¦µÄ¿Õ¸ñÀ
µçÁ÷±í | µçѹ±í | ¹ÊÕÏÔÒò |
ʾÊý²»Îª0 | ʾÊýΪ0 | ______ |
ʾÊýΪ0 | ʾÊý²»Îª0 | ______ |
ij°àͬѧµ½ÊµÑéÊÒ×ö¡°²â¶¨Ð¡µÆÅݶ¹¦ÂÊ¡±µÄʵÑ飮±»²âСµÆÅݵĶµçѹΪ3.8V£¬µç×èԼΪ10¦¸£®ÊµÑéÊÒÓÐÈçÏÂÆ÷²Ä£ºµçÔ´£¨µçѹΪ6V£©¡¢µçÁ÷±í£¨0¡«0.6A 0¡«3A£©¡¢µçѹ±í£¨0¡«3V 0¡«15V£©¡¢¿ª¹Ø¸÷Ò»Ö»£¬µ¼ÏßÈô¸É£¬»¬¶¯±ä×èÆ÷ÈýÖ»£ºR1£¨5¦¸ 0.5A£©¡¢R2£¨10¦¸ 0.5A£©¡¢R3£¨500¦¸ 1A£©£®Í¬Ñ§ÃÇÉè¼ÆµÄµç·Èçͼ1Ëùʾ£º

£¨1£©°ÑʵÎïͼ2Á¬½ÓÍêÕû£¨°´ÕÕµç·ͼµÄÁ¬½Ó·½Ê½£©£®
£¨2£©»¬¶¯±ä×èÆ÷ӦѡÓÃ______£¨Ñ¡Ìî¡°R1¡±¡¢¡°R2¡±¡¢¡°R3¡±£©£»
£¨3£©ÔÚ¿ª¹Ø±ÕºÏÇ°£¬Ó¦½«»¬Æ¬P·ÅÔÚ______¶Ë£®£¨Ñ¡Ìî¡°A¡±»ò¡°B¡±£©
£¨4£©¾ý¾ýÕýÈ·µØÁ¬½ÓºÃµç·£¬±ÕºÏ¿ª¹Ø£¬ÎÞÂÛÔõÑùµ÷½Ú»¬¶¯±ä×èÆ÷µÆÅݶ¼²»ÁÁ£®Ð¡À¼·ÖÎö²úÉú¹ÊÕϵÄÔÒò¿ÉÄÜÊÇ£º¢ÙСµÆÅݵÆË¿¶ÏÁË£»¢ÚСµÆÅݶÌ·£»¢Û»¬¶¯±ä×èÆ÷¿ªÂ·£®£¨µçÁ÷±í¡¢µçѹ±í¾ùÎÞ¹ÊÕÏ£©ÇëÄãÒÀ¾Ý±íÖеçÁ÷±í¡¢µçѹ±íʾÊý¿ÉÄܳöÏֵļ¸ÖÖÇé¿ö£¬°ï¾ý¾ýÅжϹÊÕÏÔÒò£¬²¢½«ÆäÐòºÅÌîдÔÚ±íÖжÔÓ¦µÄ¿Õ¸ñÀ
£¨5£©µçѹ±íµÄµç×èºÜ´ó£¬ËùÒÔÔÚ´¦Àíµç·ʱͨ³£°Ñµçѹ±í¿´³É¶Ï·£¬µ«ÊÇÕæʵÇé¿öÏÂÓÐʱҲҪ¿¼Âǵçѹ±íµÄµç×裬Èôµçѹ±íµÄµç×èΪR£¬Í¼3Ëùʾµç·¿ÉÒÔµÈЧ³ÉÈçͼ4Ëùʾ£®Ôò¸ù¾Ý¸ÃµÈЧ·½·¨£¬µ±µçѹ±í¶ÁÊýΪU£¬µçÁ÷±í¶ÁÊýΪIʱ£¬RXµÄʵ¼Ê¹¦ÂÊӦΪ______£¨ÓòâµÃµÄÁ¿±í´ï£©£¬²âÁ¿Öµ±ÈÕæʵֵ______£¨Ñ¡Ìî¡°Æ«´ó¡±»òÕß¡°Æ«Ð¡¡±£©

£¨1£©°ÑʵÎïͼ2Á¬½ÓÍêÕû£¨°´ÕÕµç·ͼµÄÁ¬½Ó·½Ê½£©£®
£¨2£©»¬¶¯±ä×èÆ÷ӦѡÓÃ______£¨Ñ¡Ìî¡°R1¡±¡¢¡°R2¡±¡¢¡°R3¡±£©£»
£¨3£©ÔÚ¿ª¹Ø±ÕºÏÇ°£¬Ó¦½«»¬Æ¬P·ÅÔÚ______¶Ë£®£¨Ñ¡Ìî¡°A¡±»ò¡°B¡±£©
£¨4£©¾ý¾ýÕýÈ·µØÁ¬½ÓºÃµç·£¬±ÕºÏ¿ª¹Ø£¬ÎÞÂÛÔõÑùµ÷½Ú»¬¶¯±ä×èÆ÷µÆÅݶ¼²»ÁÁ£®Ð¡À¼·ÖÎö²úÉú¹ÊÕϵÄÔÒò¿ÉÄÜÊÇ£º¢ÙСµÆÅݵÆË¿¶ÏÁË£»¢ÚСµÆÅݶÌ·£»¢Û»¬¶¯±ä×èÆ÷¿ªÂ·£®£¨µçÁ÷±í¡¢µçѹ±í¾ùÎÞ¹ÊÕÏ£©ÇëÄãÒÀ¾Ý±íÖеçÁ÷±í¡¢µçѹ±íʾÊý¿ÉÄܳöÏֵļ¸ÖÖÇé¿ö£¬°ï¾ý¾ýÅжϹÊÕÏÔÒò£¬²¢½«ÆäÐòºÅÌîдÔÚ±íÖжÔÓ¦µÄ¿Õ¸ñÀ
µçÁ÷±í | µçѹ±í | ¹ÊÕÏÔÒò |
ʾÊý²»Îª0 | ʾÊýΪ0 | ______ |
ʾÊýΪ0 | ʾÊý²»Îª0 | ______ |