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.ÁöÇý Ű¿ì´Â ¿µ¾î(Á¦ 02 ȸ)

LV47 alexÇÒ¹è

2026-03-14 ¿ÀÈÄ 9:17:32 | Á¶È¸ : 379


ÁöÇý Ű¿ì´Â ¿µ¾î(Á¦ 02 ȸ) : ÅÂ¾ç ºû

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*ÀÌ ¹®Á¦´Â Áö±¸¿Í žçÀÇ °Å¸® ¹× ºûÀÇ ¼Óµµ¸¦ ¾Ë¾Æ¾ß ÇÑ´Ù.

this problem requires knowing the distance

between the earth and the sun and the speed of light.


[¹®] :

°¡À»¿¡ ÅÂ¾ç ºûÀÌ Áö±¸¿¡ ´ê´Âµ¥ ¾ó¸¶³ª °É¸±±î?

how long does it take the suns light to reach the earth in the fall?


º¸±â :

°¡)¾à 30 ºÐ 15 ÃÊ ³ª)¾à 10 ºÐ 18 ÃÊ

´Ù)¾à 8 ºÐ 30 ÃÊ ¶ó)¾à 5 ºÐ 11 ÃÊ


[´ä] ( )

==

<Áß¿ä ´Ü¾î>

earth /ərɵ/[¾î(¾î)¤©¤µµå]

n. (the ¡­) Áö±¸, ´ëÁö, À°Áö(¹Ù´Ù¿¡ ´ëÇÏ¿©), Áö¸é(Çϴÿ¡ ´ëÇÏ¿©).

the whole ¡­ was astonished. / ¿Â Áö±¸°¡(¼¼°è »ç¶÷µéÀÌ) ³î¶ú´Ù.

==

[Á¤´ä ¹× ÇØ¼³]

Á¤´ä : ´Ù) ¾à 8ºÐ 30ÃÊ

ÇØ¼³ :

-ºûÀÇ ¼Óµµ : ¾à 30¸¸ §°/ÃÊ (¼Ò¸®(340m/ÃÊ)º¸´Ù 88¸¸ ¹è ºü¸§)

-Áö±¸¿¡¼­ žç±îÁöÀÇ °Å¸® : ¾à 1¾ï 5õ¸¸ §°

1¾ï 5õ¸¸ §° ¡À 30¸¸ §° = ¾à 8ºÐ 33ÃÊ


[»ó½Ä] : 

ºûÀº 1ÃÊ¿¡ Áö±¸¸¦ Àϰö ¹ÙÄû ¹ÝÀ» µ¹ ¼ö ÀÖ°í,

Áö±¸¿¡¼­ ´Þ±îÁö °¡´Â µ¥´Â 1ÃÊ Á¤µµ °É¸°´Ù. (Áö±¸ÀÇ µÑ·¹ : 4¸¸km)

light can travel around the earth seven

and a half times in one second,

and it takes about one second to travel from earth to the moon.

(earths circumference: 40,000 km)

==

==

[ LV47 alexÇÒ¹è´ÔÀÇ °Ô½Ã±Û ´õ º¸±â (Ŭ¸¯!) ]

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