ÄúÏÖÔÚµÄλÖÃÊÇ£º°®ÎÊ

ÍòÓÐÒýÁ¦µÄËùÓй«Ê½ ÍòÓÐÒýÁ¦ËùÓй«Ê½ÊÇʲô£¿

2021-06-10 06:39°®ÎÊ

¼ò½éÍòÓÐÒýÁ¦µÄËùÓй«Ê½ÍòÓÐÒýÁ¦ÊÇÓÉÓÚÎïÌå¾ßÓÐÖÊÁ¿¶øÔÚÎïÌåÖ®¼ä²úÉúµÄÒ»ÖÖÏ໥×÷Óá£ËüµÄ´óСºÍ ÎïÌåµÄÖÊÁ¿ÒÔ¼°Á½¸öÎïÌåÖ®¼äµÄ¾àÀëÓйء£ÎïÌåµÄÖÊÁ¿Ô½´ó£¬ËüÃÇÖ®¼äµÄÍòÓÐÒýÁ¦¾ÍÔ½´ó£»ÎïÌåÖ®¼äµÄ¾àÀëÔ½Ô¶£¬ËüÃÇÖ®¼äµÄÍòÓÐÒýÁ¦¾ÍԽС¡£Á½¸ö...

1

ÍòÓÐÒýÁ¦ËùÓй«Ê½ÊÇʲô£¿


2

ÍòÓÐÒýÁ¦ËùÓй«Ê½¡£


F=GMm/R^2 Õâ¸öʹÓ÷¶Î§ºÜ¹ãÖªµÀÖÐÐÄÌìÌåºÍ×ÔÉíËÙ¶È,»¹ÓÐÐýת°ë¾¶Ö®ºó¾Í¿ÉÒÔÁË

F=w^2MR ½ÇËÙ¶È ×ÔÉíÖÊÁ¿ºÍÐýת°ë¾¶

F=V^2Rm ÏßËÙ¶È ×ÔÉíÖÊÁ¿ºÍÐýת°ë¾¶

F=maÏòÐļÓËÙ¶È ×ÔÉíÖÊÁ¿

F=mg(Ö»ÊÊÓÃÓÚÔÚÖÐÐÄÌìÌå±íÃæ)

1.¿ªÆÕÀÕµÚÈý¶¨ÂÉ£º T2/R3£½K(£½4¦Ð2/GM)£ûR:¹ìµÀ°ë¾¶£¬T:ÖÜÆÚ£¬K:³£Á¿(ÓëÐÐÐÇÖÊÁ¿Î޹أ¬È¡¾öÓÚÖÐÐÄÌìÌåµÄÖÊÁ¿)£ý

2.ÍòÓÐÒýÁ¦¶¨ÂÉ£º F£½Gm1m2/r2 G£½6.67¡Á10-11N?m2/kg2£¬·½ÏòÔÚËüÃǵÄÁ¬ÏßÉÏ£©

3.ÌìÌåÉϵÄÖØÁ¦ºÍÖØÁ¦¼ÓËٶȣºGMm/R2£½mg£» g£½GM/R2£ûR:ÌìÌå°ë¾¶(m)£¬M£ºÌìÌåÖÊÁ¿£¨kg£©£ý

4.ÎÀÐÇÈÆÐÐËٶȡ¢½ÇËٶȡ¢ÖÜÆÚ£º V£½(GM/r)1/2£»¦Ø£½(GM/r3)1/2£» T£½2¦Ð(r3/GM)1/2 £ûM£ºÖÐÐÄÌìÌåÖÊÁ¿£ý

5.µÚÒ»(¶þ¡¢Èý)ÓîÖæËÙ¶È V1£½(gµØrµØ)1/2£½(GM/rµØ)1/2£½7.9km/s£» V2£½11.2km/s£»

V3£½16.7km/s

6.µØÇòͬ²½ÎÀÐÇGMm/(rµØ+h)2£½m4¦Ð2(rµØ+h)/T2£ûh¡Ö36000km£¬h:¾àµØÇò±íÃæµÄ¸ß¶È£¬rµØ:µØÇòµÄ°ë¾¶£ý

×¢:

(1)ÌìÌåÔ˶¯ËùÐèµÄÏòÐÄÁ¦ÓÉÍòÓÐÒýÁ¦Ìṩ,FÏò£½FÍò£»

(2)Ó¦ÓÃÍòÓÐÒýÁ¦¶¨ÂɿɹÀËãÌìÌåµÄÖÊÁ¿Ãܶȵȣ»

(3)µØÇòͬ²½ÎÀÐÇÖ»ÄÜÔËÐÐÓÚ³àµÀÉÏ¿Õ£¬ÔËÐÐÖÜÆں͵ØÇò×ÔתÖÜÆÚÏàͬ£»

(4)ÎÀÐǹìµÀ°ë¾¶±äСʱ,ÊÆÄܱäС¡¢¶¯Äܱä´ó¡¢Ëٶȱä´ó¡¢ÖÜÆÚ±äС£¨Ò»Í¬Èý·´£©£»

(5)µØÇòÎÀÐǵÄ×î´ó»·ÈÆËٶȺÍ×îС·¢ÉäËٶȾùΪ7.9km/s
3

ÍòÓÐÒýÁ¦¶¨ÂÉËùÓй«Ê½


ûɶºÃ˵µÄ,Ö»Ïë˵ÍòÓÐÒýÁ¦¶¨Âɲ»ÊÇ¿ÉÒÔÍƵ¼µÄ,ËüÊǽ¨Á¢ÔÚʵÑé»ù´¡Éϵľ­Ñ鹫ʽ....
4

ÍòÓÐÒýÁ¦¶¨ÂɵĹ«Ê½ µ¥Î»¶¼·Ö±ðÊÇʲô?


1¡¢ÍòÓÐÒýÁ¦¶¨ÂɵĹ«Ê½£º

ÆäÖУ¬

£¨1£©F£ºÁ½¸öÎïÌåÖ®¼äµÄÒýÁ¦

£¨2£©G£ºÍòÓÐÒýÁ¦³£Á¿

£¨3£©m1£ºÎïÌå1µÄÖÊÁ¿

£¨4£©m2£ºÎïÌå2µÄÖÊÁ¿

£¨5£©r£ºÁ½¸öÎïÌåÖ®¼äµÄ¾àÀ루´óС£©£¨r±íʾ¾¶ÏòʸÁ¿£©

2¡¢ÒÀÕÕ¹ú¼Êµ¥Î»ÖÆ£¬FµÄµ¥Î»ÎªÅ£¶Ù£¨N£©£¬m1ºÍm2µÄµ¥Î»ÎªÇ§¿Ë£¨Kg£©£¬r µÄµ¥Î»ÎªÃ×£¨m£©£¬³£Êý G ½üËƵصÈÓÚ G=6.67¡Á10⁻¹¹ N¡¤m²/kg²£¨Å£¶Ùƽ·½Ã×ÿ¶þ´Î·½Ç§¿Ë£©¡£

À©Õ¹×ÊÁÏ£º

¾­µäÍòÓÐÒýÁ¦¶¨ÂÉ·´Ó³ÁËÒ»¶¨ÀúÊ·½×¶ÎÈËÀà¶ÔÒýÁ¦µÄÈÏʶ£¬ÔÚÊ®¾ÅÊÀ¼ÍÄ©·¢ÏÖ£¬Ë®ÐÇÔÚ½üÈÕµãµÄÒƶ¯ËٶȱÈÀíÂÛÖµ´ó£¬¼´·¢ÏÖË®ÐǹìµÀÓÐÐý½ô£¬¹ìµÀÐý½ôµÄ¿ìÂýµÄʵ¼ÊֵΪÿÊÀ¼Í42.9¡å¡£

ÕâÖÖÏÖÏóÓÃÍòÓÐÒýÁ¦¶¨ÂÉÎÞ·¨½âÊÍ£¬¶ø¸ù¾Ý¹ãÒåÏà¶ÔÂÛ¼ÆËãµÄ½á¹ûÐý½ôÊÇÿÊÀ¼Í43.0¡å£¬ÔÚ¹Û²âÎó²îÔÊÐíµÄ·¶Î§ÄÚ¡£´ËÍ⣬¹ãÒåÏà¶ÔÂÛ»¹ÄܽϺõؽâÊÍÆ×ÏߵĺìÒƺ͹âÏßÔÚÌ«ÑôÒýÁ¦×÷ÓÃϵÄƫתµÈÏÖÏó¡£Õâ±íÃ÷¹ãÒåÏà¶ÔÂÛµÄÒýÁ¦ÀíÂ۱Ⱦ­µäµÄÒýÁ¦ÀíÂÛ½øÁËÒ»²½¡£

ÔÚ·¨À­µÚºÍÂó¿Ë˹Τ֮ºó£¬ÈËÃÇ¿´µ½ÎïÀíµÄʵÔÚ³ýÁËÁ£×Ó»¹Óеç´Å³¡¡£µç´Å³¡¾ßÓж¯Á¿ºÍÄÜÁ¿ÇÒÄÜ´«²¥µç´Å²¨¡£ÕâʹÈËÃÇÁªÏëÍòÓÐÒýÁ¦¶¨ÂÉÒ²ÊÇÎïÀíµÄʵÔÚ£¬ÄÜ´«²¥ÒýÁ¦²¨£¬Ò²ÓÐÐí¶àÈËŬÁ¦Ì½²âËü£¬µ«ÉÐÎ޺ܺõĽá¹û¡£µç´Å²¨µÄ´«²¥¿ÉÓùâ×Ó½âÊÍ£¬ÀàËƵأ¬¹â×ÓÒ²µ¼ÖÂÒýÁ¦×Ó¸ÅÄîµÄÒý³ö¡£ÍòÓÐÒýÁ¦Ò²²»ÔÙÊdz¬¾à×÷Ó㬶øÒÔÒýÁ¦×ÓΪý½é¡£µ«ÕâЩ¶¼ÊÇÎïÀíѧ¼ÒÕýÔÚ̽Ë÷µÄÁìÓò¡£

²Î¿¼×ÊÁÏÀ´Ô´£º°Ù¶È°Ù¿Æ - ÍòÓÐÒýÁ¦¶¨ÂÉ

±¾»Ø´ð±»ÍøÓѲÉÄÉ
5

ÍòÓÐÒýÁ¦¶¨ÂɵÄËùÓй«Ê½ºÍÍƵ¼¹«Ê½


Óù«Ê½±íʾΪ£ºF=G*M1M2/£¨R*R£©

£¨G=6.67¡Á10^-11N•m^2/kg^2£©

¿ÉÒÔ¶Á³ÉFµÈÓÚG³ËÒÔM1M2³ýÒÔRµÄƽ·½ÉÌ

¸ü¼ÓÑϽ÷µÄ±íʾÊÇÈçϵÄʸÁ¿ÐÎʽ£º

ÆäÖУº

F:

Á½¸öÎïÌåÖ®¼äµÄÒýÁ¦

G:

ÍòÓÐÒýÁ¦³£Êý

m1:

ÎïÌå1µÄÖÊÁ¿

m2:

ÎïÌå2µÄÖÊÁ¿

r:

Á½¸öÎïÌåÖ®¼äµÄ¾àÀë
6

-

ÒÔÉÏÊǹØÓÚÍòÓÐÒýÁ¦µÄËùÓй«Ê½µÄÎÊ´ð

Tags£ºÍòÓÐÒýÁ¦µÄËùÓй«Ê½,ÍòÓÐÒýÁ¦ËùÓй«Ê½ÊÇʲô£¿,ÍòÓÐÒýÁ¦¶¨ÂÉËù