£¨8·Ö£©Ä³Í¬Ñ§×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑ飬Ö÷Òª²½ÖèÈçÏ£º

A£®ÔÚ×ÀÃæÉÏ·ÅÒ»¿é·½Ä¾°å£¬ÔÚ·½Ä¾°åÉÏÆÌÒ»ÕÅ°×Ö½£¬ÓÃͼ¶¤°Ñ°×Ö½¶¤ÔÚ·½Ä¾°åÉÏ£»
B£®ÓÃͼ¶¤°ÑÏðƤÌõµÄÒ»¶Ë¹Ì¶¨ÔÚ°åÉϵÄAµã£¬ÔÚÏðƤÌõµÄÁíÒ»¶ËË©ÉÏÁ½ÌõϸÉþ£¬Ï¸ÉþµÄÁíÒ»¶Ëϵ×ÅÉþÌ×£»
C£®½«Á½Ö»µ¯»É²âÁ¦¼Æͨ¹ýϸÉþ»¥³É½Ç¶ÈµØÀ­ÏðƤÌõ£¬Ê¹ÉþÓëÏðƤÌõµÄ½áµã´ïµ½Ä³Ò»Î»ÖÃO£¬¼ÇÏÂOµãµÄλÖ㬶Á³öÁ½¸öµ¯»É²âÁ¦¼ÆµÄʾÊý£»
D£®°´Ñ¡ºÃµÄ±ê¶È£¬ÓÃǦ±ÊºÍ¿Ì¶È³ß×÷³öÁ½¸öµ¯»É²âÁ¦¼ÆµÄÀ­Á¦F1ºÍF2µÄͼʾ£¬²¢ÓÃƽÐÐËıßÐζ¨Ôò×÷³öºÏÁ¦F¡ä£»
E¡¢ÓÃÒ»¸öµ¯»É²âÁ¦¼Æ£¬Í¨¹ýϸÉþÌ×À­ÏðƤÌõʹÆäÉ쳤£¬¶Á³öµ¯»É²âÁ¦¼ÆµÄʾÊý£¬¼ÇÏÂϸÉþµÄ·½Ïò£¬°´Í¬Ò»±ê¶È×÷³öÕâ¸öÁ¦FµÄͼʾ£»
F£®±È½ÏÁ¦F¡äÓëFµÄ´óСºÍ·½Ïò¡£
ÉÏÊö²½ÖèÖУº
¢ÅÓÐÖØÒªÒÅ©ÄÚÈݵIJ½ÖèÐòºÅÖР   ºÍ     £»ÒÅ©ÄÚÈÝ·Ö±ðÊÇ       ºÍ      
¢ÆÈôËû½«ÒÅ©ÄÚÈݲ¹ÉϺó£¬Èçͼ£¨a£©Ëùʾ£¬ÊÇËûÀûÓÃ×ø±êÖ½¼ÇϵÄÏðƤ½î½áµãλÖÃOµã¼°Á½µ¯»É²âÁ¦¼ÆÀ­Á¦µÄ´óС£¬ÊÔÔÚͼ£¨a£©ÖÐ×÷³öÎÞʵÑéÎó²îÇé¿öÏÂF1ºÍF2µÄºÏÁ¦Í¼Ê¾£¬²¢ÓÃF¡ä±íʾ´ËÁ¦¡£

¢Çͼ£¨b£©ÊǼ׺ÍÒÒÁ½Î»Í¬Ñ§·Ö±ð×öÒÔÉÏʵÑéʱµÃµ½µÄ½á¹û£¬ÆäÖÐÄÄÒ»¸ö±È½Ï·ûºÏʵÑéÊÂʵ£¿£¨Á¦FÊÇÖ»ÓÃÒ»Ö»µ¯»É²âÁ¦¼ÆÀ­Ê±µÄͼʾ£©
            

(b)

£¨1£©  C      E £¬ ÃèÏÂÁ½Á¦µÄ·½Ïò      ½áµãÀ­ÖÁOµã   (4·Ö)
£¨2£©Í¼ÂÔ(2·Ö)
£¨3£©    A    (2·Ö)

½âÎöÊÔÌâ·ÖÎö£º£¨1£©Ñ¡ÏîCÖгýÁ˼ǼOµãλÖ㬵¯»ÉʾÊýÒÔÍ⻹Ҫ¼Ç¼µ¯Á¦µÄ·½Ïò£¬EÑ¡ÏîÖÐûÓмǼOµãλÖâƻ­³öƽÐÐËıßÐοɵã¨3£©ÓëÉÏÃæÉþ×ÓÔÚͬһÌõÖ±ÏßµÄÁ¦ÎªÀíÂÛÖµ£¬ÓÉƽÐÐËıßÐÎ×ö³öµÄºÏÁ¦ÎªÊµÑéÖµ
¿¼µã£º¿¼²éÑé֤ƽÐÐËıßÐζ¨Ôò
µãÆÀ£ºÄѶȽÏС£¬±¾ÊµÑéµÄÌصã¾ÍÊÇÐèÒª¼Ç¼µÄ¶«Î÷±È½Ï¶à£¬Ò»°ã¼Ç¼µÄÓÐÁ¦µÄ´óС¡¢·½Ïò¡¢OµãλÖõÈ

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

I¡¢ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
AC
AC

A£®ÓÃÂäÌå·¨¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬ÈôÀûÓñí´ïʽmgh=mv2/2£¬À´ÑéÖ¤»úеÄÜÊغ㶨ÂÉʱ£¬ËùÑ¡ÔñµÄÖ½´øµÚÒ»¡¢¶þÁ½µã¼ä¾àÓ¦½Ó½ü2mm
B£®×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑéʱ£¬Á½¸ö²âÁ¦¼Æ¿ÉÒÔºÍľ°å³ÉÒ»¶¨µÄ½Ç¶È
C£®×ö¡°ÅöײÖеĶ¯Á¿Êغ㡱µÄʵÑéʱ£¬±ØÐëÈÃб²ÛÄ©¶ËµÄÇÐÏßˮƽ
D£®ÔÚÓõ¥°Ú²â¶¨ÖØÁ¦¼ÓËÙ¶ÈʵÑéÖУ¬Ó¦¸ÃÔÚ°ÚÇòÔÚ×î¸ßµã¿ªÊ¼¼Æʱ
II¡¢ÔÚ¡°Ñо¿Æ½Å×ÎïÌåÔ˶¯¡±µÄʵÑéÖУº
£¨1£©ÎªÊ²Ã´ÒªÊ¹¹Ì¶¨ÓÐб²ÛµÄľ°å±£³Öˮƽ£¿
ʹСÇòÀ뿪ľ°åʱÓÐˮƽ³õËٶȶø×öƽÅ×Ô˶¯
ʹСÇòÀ뿪ľ°åʱÓÐˮƽ³õËٶȶø×öƽÅ×Ô˶¯

£¨2£©ÎªÊ²Ã´Òª±£Ö¤Ð¡Çòÿ´Î´Óͬһ¹Ì¶¨Î»ÖÃ×ÔÓÉ»¬Ï£¿
ʹСÇòÿ´ÎÀ뿪ľ°åʱÓÐÏàͬµÄËٶȣ¬¶¼×öͬһÌõÅ×ÎïÏßµÄƽÅ×Ô˶¯£®
ʹСÇòÿ´ÎÀ뿪ľ°åʱÓÐÏàͬµÄËٶȣ¬¶¼×öͬһÌõÅ×ÎïÏßµÄƽÅ×Ô˶¯£®

£¨3£©ÈçͼÊÇijͬѧʵÑéµÃµ½µÄСÇò×öƽÅ×Ô˶¯µÄ¹ì¼££¬½¨Á¢ÁË×ø±êϵ£¬²â³öÁËa¡¢b¡¢cÈýµãµÄ×ø±ê£¬gÈ¡10m/s2£¬¸ù¾ÝͼÖÐÊý¾Ý»Ø´ð£º
¢Ù×ø±êÔ­µãOÊÇСÇò×öƽÅ×Ô˶¯µÄ³õʼλÖÃÂð£¿
ÊÇ
ÊÇ
£®
¢ÚСÇò×öƽÅ×Ô˶¯µÄ³õËÙ¶ÈÊÇ
2
2
m/s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§Óõ½ÁËƽľ°å¡¢Ï¸ÉþÌס¢ÏðƤÌõ¡¢²âÁ¦¼ÆµÈʵÑéÆ÷²Ä£¬¹ØÓÚ¸ÃͬѧµÄ×ö·¨ÕýÈ·µÄÊÇ £¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©ÓÃƽľ°å¡¢Ï¸ÉþÌס¢ÏðƤÌõ¡¢²âÁ¦¼ÆµÈ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐη¨Ôò¡±µÄʵÑ飬ΪÁËʹʵÑéÄܹ»Ë³Àû½øÐУ¬ÇÒ¾¡Á¿¼õСÎó²î£¬ÄãÈÏΪÏÂÁÐ˵·¨»ò×ö·¨Äܹ»´ïµ½ÉÏÊöÄ¿µÄµÄÊÇ__________________

A£®ÓòâÁ¦¼ÆÀ­Ï¸ÉþÌ×ʱ£¬À­Á¦Ó¦Ñص¯»ÉµÄÖáÏߣ¬ÇÒÓëˮƽľ°åƽÐÐ

B£®Á½Ï¸ÉþÌ×±ØÐëµÈ³¤

C£®Í¬Ò»´ÎʵÑéÁ½´ÎÀ­Ï¸ÉþÌ×Ðëʹ½áµãµ½´ïͬһλÖÃ

D£®ÓòâÁ¦¼ÆÀ­Á½¸öϸÉþÌ×ʱ£¬Á½À­Á¦¼Ð½ÇÔ½´óÔ½ºÃ

£¨2£©ÓÃÈçͼʵÑé×°ÖÃÑéÖ¤m1 ¡¢m2×é³ÉµÄϵͳ»úеÄÜÊغ㡣m2´Ó¸ß´¦Óɾ²Ö¹¿ªÊ¼ÏÂÂ䣬m1ÉÏÍÏ×ŵÄÖ½´ø´ò³öһϵÁеĵ㣬¶ÔÖ½´øÉϵĵ㼣½øÐвâÁ¿£¬¼´¿ÉÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡£ÏÂͼ¸ø³öµÄÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´ø£º0ÊÇ´òϵĵÚÒ»¸öµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÒÑÖªm1= 50g ¡¢m2=150g £¬Ôò£¨gÈ¡10m/s2£¬½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

¢ÙÔÚÖ½´øÉÏ´òϼÇÊýµã5ʱµÄËÙ¶Èv  =         m/s£»

¢ÚÔÚ´òµã0~5¹ý³ÌÖÐϵͳ¶¯ÄܵÄÔöÁ¿¡÷EK =      J£¬ÏµÍ³ÊÆÄܵļõÉÙÁ¿¡÷EP =      J£¬Óɴ˵óöµÄ½áÂÛÊÇ                                                 £»

¢ÛÈôijͬѧ×÷³öͼÏñÈçͼ£¬Ôòµ±µØµÄʵ¼ÊÖØÁ¦¼ÓËÙ¶Èg =           m/s2¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011½ìɽ¶«Ê¡¼ÃÄÏÊиßÈý12ÔÂÖÊÁ¿µ÷Ñмì²âÎïÀíÊÔ¾íA¾í ÌâÐÍ£ºÊµÑéÌâ

£¨1£©ÓÃƽľ°å¡¢Ï¸ÉþÌס¢ÏðƤÌõ¡¢²âÁ¦¼ÆµÈ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐη¨Ôò¡±µÄʵÑ飬ΪÁËʹʵÑéÄܹ»Ë³Àû½øÐУ¬ÇÒ¾¡Á¿¼õСÎó²î£¬ÄãÈÏΪÏÂÁÐ˵·¨»ò×ö·¨Äܹ»´ïµ½ÉÏÊöÄ¿µÄµÄÊÇ__________________

A£®ÓòâÁ¦¼ÆÀ­Ï¸ÉþÌ×ʱ£¬À­Á¦Ó¦Ñص¯»ÉµÄÖáÏߣ¬ÇÒÓëˮƽľ°åƽÐÐ
B£®Á½Ï¸ÉþÌ×±ØÐëµÈ³¤
C£®Í¬Ò»´ÎʵÑéÁ½´ÎÀ­Ï¸ÉþÌ×Ðëʹ½áµãµ½´ïͬһλÖÃ
D£®ÓòâÁ¦¼ÆÀ­Á½¸öϸÉþÌ×ʱ£¬Á½À­Á¦¼Ð½ÇÔ½´óÔ½ºÃ
£¨2£©ÓÃÈçͼʵÑé×°ÖÃÑéÖ¤m1¡¢m2×é³ÉµÄϵͳ»úеÄÜÊغ㡣m2´Ó¸ß´¦Óɾ²Ö¹¿ªÊ¼ÏÂÂ䣬m1ÉÏÍÏ×ŵÄÖ½´ø´ò³öһϵÁеĵ㣬¶ÔÖ½´øÉϵĵ㼣½øÐвâÁ¿£¬¼´¿ÉÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡£ÏÂͼ¸ø³öµÄÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´ø£º0ÊÇ´òϵĵÚÒ»¸öµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÒÑÖªm1=" 50g" ¡¢m2="150g" £¬Ôò£¨gÈ¡10m/s2£¬½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
¢ÙÔÚÖ½´øÉÏ´òϼÇÊýµã5ʱµÄËÙ¶Èv =         m/s£»
¢ÚÔÚ´òµã0~5¹ý³ÌÖÐϵͳ¶¯ÄܵÄÔöÁ¿¡÷EK=      J£¬ÏµÍ³ÊÆÄܵļõÉÙÁ¿¡÷EP =      J£¬Óɴ˵óöµÄ½áÂÛÊÇ                                                 £»
¢ÛÈôijͬѧ×÷³öͼÏñÈçͼ£¬Ôòµ±µØµÄʵ¼ÊÖØÁ¦¼ÓËÙ¶Èg =           m/s2¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2010-2011ѧÄêɽ¶«Ê¡¼ÃÄÏÊиßÈý12ÔÂÖÊÁ¿µ÷Ñмì²âÎïÀíÊÔ¾íA¾í ÌâÐÍ£ºÊµÑéÌâ

£¨1£©ÓÃƽľ°å¡¢Ï¸ÉþÌס¢ÏðƤÌõ¡¢²âÁ¦¼ÆµÈ×ö¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐη¨Ôò¡±µÄʵÑ飬ΪÁËʹʵÑéÄܹ»Ë³Àû½øÐУ¬ÇÒ¾¡Á¿¼õСÎó²î£¬ÄãÈÏΪÏÂÁÐ˵·¨»ò×ö·¨Äܹ»´ïµ½ÉÏÊöÄ¿µÄµÄÊÇ__________________

A£®ÓòâÁ¦¼ÆÀ­Ï¸ÉþÌ×ʱ£¬À­Á¦Ó¦Ñص¯»ÉµÄÖáÏߣ¬ÇÒÓëˮƽľ°åƽÐÐ

B£®Á½Ï¸ÉþÌ×±ØÐëµÈ³¤

C£®Í¬Ò»´ÎʵÑéÁ½´ÎÀ­Ï¸ÉþÌ×Ðëʹ½áµãµ½´ïͬһλÖÃ

D£®ÓòâÁ¦¼ÆÀ­Á½¸öϸÉþÌ×ʱ£¬Á½À­Á¦¼Ð½ÇÔ½´óÔ½ºÃ

£¨2£©ÓÃÈçͼʵÑé×°ÖÃÑéÖ¤m1 ¡¢m2×é³ÉµÄϵͳ»úеÄÜÊغ㡣m2´Ó¸ß´¦Óɾ²Ö¹¿ªÊ¼ÏÂÂ䣬m1ÉÏÍÏ×ŵÄÖ½´ø´ò³öһϵÁеĵ㣬¶ÔÖ½´øÉϵĵ㼣½øÐвâÁ¿£¬¼´¿ÉÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡£ÏÂͼ¸ø³öµÄÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´ø£º0ÊÇ´òϵĵÚÒ»¸öµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÒÑÖªm1= 50g ¡¢m2=150g £¬Ôò£¨gÈ¡10m/s2£¬½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

¢ÙÔÚÖ½´øÉÏ´òϼÇÊýµã5ʱµÄËÙ¶Èv  =         m/s£»

¢ÚÔÚ´òµã0~5¹ý³ÌÖÐϵͳ¶¯ÄܵÄÔöÁ¿¡÷EK =       J£¬ÏµÍ³ÊÆÄܵļõÉÙÁ¿¡÷EP =       J£¬Óɴ˵óöµÄ½áÂÛÊÇ                                                  £»

¢ÛÈôijͬѧ×÷³öͼÏñÈçͼ£¬Ôòµ±µØµÄʵ¼ÊÖØÁ¦¼ÓËÙ¶Èg =           m/s2¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸