요즘 가람반친구들이 쌓기영역에서 제일 좋아하는 것중 하나가 바로 팽이만들기인데요.
오늘은 과학활동으로 팽이를 만나보았답니다^^
팽이를 돌리면 가만히 두어도 계속 돌아가는데요. 이렇게 계속 움직이려고 하는 힘을 관성이라고 부른대요.
우리모두 팽이를 만들어 관성에 대해 알아보도록 해요^^
종이컵을 가위로 잘라 펴줍니다. 그리고 네임펜, 매직을 이용해 팽이를 꾸며줍니다!
![](https://t1.daumcdn.net/cfile/cafe/99595833599BC75331)
![](https://t1.daumcdn.net/cfile/cafe/9949E633599BC75433)
![](https://t1.daumcdn.net/cfile/cafe/994E5633599BC75532)
![](https://t1.daumcdn.net/cfile/cafe/99B7DC33599BC75628)
![](https://t1.daumcdn.net/cfile/cafe/99A3E833599BC7572B)
![](https://t1.daumcdn.net/cfile/cafe/999A4433599BC7582B)
![](https://t1.daumcdn.net/cfile/cafe/99C73C33599BC75926)
![](https://t1.daumcdn.net/cfile/cafe/99482B33599BC75A2F)
![](https://t1.daumcdn.net/cfile/cafe/99C6D033599BC75B23)
![](https://t1.daumcdn.net/cfile/cafe/99331633599BC75C02)
![](https://t1.daumcdn.net/cfile/cafe/99DF3833599BC75E09)
![](https://t1.daumcdn.net/cfile/cafe/9914EC33599BC75F32)
![](https://t1.daumcdn.net/cfile/cafe/9907A733599BC76037)
![](https://t1.daumcdn.net/cfile/cafe/991EAD33599BC76103)
![](https://t1.daumcdn.net/cfile/cafe/99CBB033599BC76208)
![](https://t1.daumcdn.net/cfile/cafe/99CE6833599BC7633C)
![](https://t1.daumcdn.net/cfile/cafe/995F1B33599BC76412)
![](https://t1.daumcdn.net/cfile/cafe/99F89333599BC76505)
![](https://t1.daumcdn.net/cfile/cafe/99BBE533599BC76623)
![](https://t1.daumcdn.net/cfile/cafe/99909833599BC76728)
![](https://t1.daumcdn.net/cfile/cafe/99AA6A33599BC76825)
![](https://t1.daumcdn.net/cfile/cafe/99F52233599BC76925)
그런다음 팽이를 돌려봅니다. 팽이가 3번을 돌려서 몇초동아 도는지 세어본 뒤 기록해요.
![](https://t1.daumcdn.net/cfile/cafe/99C21533599BC7C92E)
![](https://t1.daumcdn.net/cfile/cafe/99840633599BC7CB02)
![](https://t1.daumcdn.net/cfile/cafe/99EB1733599BC7CD2A)
![](https://t1.daumcdn.net/cfile/cafe/992B5D33599BC7CF09)
이렇게 팽이처럼 빙글빙글 도는 회전관성이 있답니다. 계속 돌아가려는 힘이 바로 회전관성이지요^^
우리주변에 회전관성이 있는 것들은 어떤 것들이 있는지 찾아보세요~