ÌâÄ¿ÄÚÈÝ
£¨1£©ÔÚ¹ú¼Êµ¥Î»ÖÆÖУ¬³¤¶ÈµÄÖ÷µ¥Î»ÊÇ
£¨2£©Ò»Ãû´ÖÐÄͬѧµÄ²âÁ¿¼Ç¼ÖÐÍüÁËдÉϵ¥Î»£¬ÇëÄã°ïËûµÄ²âÁ¿½á¹ûдÉϺÏÊʵĵ¥Î»£º
Ò»Ö§ÐÂǦ±ÊµÄ³¤¶ÈÊÇ0.175
£¨3£©¡°ÄÉÃ×ÊÇÒ»ÖÖ³¤¶Èµ¥Î»£¬1nm=10-9m£®ÄÉÃ×¼¼ÊõÊÇÒÔ0.1nm¡«100nmÕâÑùµÄ³ß¶ÈΪÑо¿¶ÔÏóµÄÇ°ÑØ¿Æѧ£¬Ä¿Ç°ÎÒ¹úÔÚÄÉÃ×¼¼ÊõµÄÑо¿·½ÃæÒѾõÒÉíÊÀ½çÇ°ÁУ®
8.8¡Á109nm=
m
m
£¬Ê±¼äµÄÖ÷µ¥Î»ÊÇs
s
£®£¨2£©Ò»Ãû´ÖÐÄͬѧµÄ²âÁ¿¼Ç¼ÖÐÍüÁËдÉϵ¥Î»£¬ÇëÄã°ïËûµÄ²âÁ¿½á¹ûдÉϺÏÊʵĵ¥Î»£º
Ò»Ö§ÐÂǦ±ÊµÄ³¤¶ÈÊÇ0.175
dm
dm
£»Ð¡Ã÷ͬѧµÄÉí¸ßÊÇ172cm
cm
£»Å®Í¬Ñ§ÉúÅÜ50Ã׵ijɼ¨Ô¼Îª10s
s
£®£¨3£©¡°ÄÉÃ×ÊÇÒ»ÖÖ³¤¶Èµ¥Î»£¬1nm=10-9m£®ÄÉÃ×¼¼ÊõÊÇÒÔ0.1nm¡«100nmÕâÑùµÄ³ß¶ÈΪÑо¿¶ÔÏóµÄÇ°ÑØ¿Æѧ£¬Ä¿Ç°ÎÒ¹úÔÚÄÉÃ×¼¼ÊõµÄÑо¿·½ÃæÒѾõÒÉíÊÀ½çÇ°ÁУ®
8.8¡Á109nm=
8.8
8.8
m=8800
8800
mm£®·ÖÎö£º£¨1£©¶ÔÌâÄ¿ÖÐÉæ¼°µÄ¼¸ÖÖÎïÀíÁ¿Óиö³õ²½µÄÁ˽⣬ÌîÈë·ûºÏÉú»îʵ¼ÊµÄµ¥Î»£»
£¨2£©ÎïÀíÉϵĸ÷¸öÎïÀíÁ¿¶¼ÓÐ×Ô¼ºµÄ¹ú¼Êµ¥Î»£»³¤¶ÈÖ÷µ¥Î»ÊÇÃ×£¨m£©£¬Ê±¼äÖ÷µ¥Î»ÊÇÃ루s£©£»
£¨3£©³¤¶Èµ¥Î»¼äµÄ»»Ëã¹ØϵÊÇ£º1km=103m=104dm=105cm=106mm=109¦Ìm=1012nm£®
£¨2£©ÎïÀíÉϵĸ÷¸öÎïÀíÁ¿¶¼ÓÐ×Ô¼ºµÄ¹ú¼Êµ¥Î»£»³¤¶ÈÖ÷µ¥Î»ÊÇÃ×£¨m£©£¬Ê±¼äÖ÷µ¥Î»ÊÇÃ루s£©£»
£¨3£©³¤¶Èµ¥Î»¼äµÄ»»Ëã¹ØϵÊÇ£º1km=103m=104dm=105cm=106mm=109¦Ìm=1012nm£®
½â´ð£º½â£º£¨1£©³¤¶ÈÖ÷µ¥Î»ÊÇÃ×£¨m£©£¬Ê±¼äÖ÷µ¥Î»ÊÇÃ루s£©£»
£¨2£©Ò»Ö§ÐÂǦ±ÊµÄ³¤¶È´óԼΪ20cm£¨¼´2dm£©£»¹ÊÌî0.175dm·ûºÏʵ¼Ê£»Ð¡Ã÷ͬѧµÄÉí¸ßÔ¼1.7m£¨¼´170cm£©¹ÊÌî172cm·ûºÏʵ¼Ê£»Å®Í¬Ñ§ÉúÅÜ50Ã׵ijɼ¨Ô¼Îª10s£»
£¨3£©8.8¡Á109nm=8.8m=8800mm£»
¹Ê´ð°¸Îª£º£¨1£©m£»s£»£¨2£©dm£»cm£»s£»£¨3£©8.8£»8800£®
£¨2£©Ò»Ö§ÐÂǦ±ÊµÄ³¤¶È´óԼΪ20cm£¨¼´2dm£©£»¹ÊÌî0.175dm·ûºÏʵ¼Ê£»Ð¡Ã÷ͬѧµÄÉí¸ßÔ¼1.7m£¨¼´170cm£©¹ÊÌî172cm·ûºÏʵ¼Ê£»Å®Í¬Ñ§ÉúÅÜ50Ã׵ijɼ¨Ô¼Îª10s£»
£¨3£©8.8¡Á109nm=8.8m=8800mm£»
¹Ê´ð°¸Îª£º£¨1£©m£»s£»£¨2£©dm£»cm£»s£»£¨3£©8.8£»8800£®
µãÆÀ£º´ËÌ⿼²é¶ÔÉú»îÖг£¼ûÎïÀíÁ¿µÄ¹À²â£¬½áºÏ¶ÔÉú»îµÄÁ˽âºÍ¶ÔÎïÀíµ¥Î»µÄÈÏʶ£¬ÌîÈë·ûºÏʵ¼ÊµÄµ¥Î»¼´¿É£»³¤¶Èµ¥Î»»»Ë㣬ÔËÓò»Í¬µ¥Î»¼äµÄ¾ßÌå¹Øϵ£¬ÀûÓÃÊýѧÉϵÄÔËËã¾Í¿É½â´ð£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿