Verbs for bending and turning


I'm having some difficulty with the various verbs that exist for bending and
turning and could really use some insight into them: 曲がる - Intransitive 曲げる -
Transitive 回る - Intransitive 回す - Transitive

JDIC additionally lists 転じる, which I'm not familiar with.

I get the feeling that the 曲-based ones are more of a "bending" or "one-time
turning" concept while the 回-based ones are more of a
turning/rotating/spinning concept. More cyclical, you know?




According to みんなの日本語初級I Lessons 14 and 23 曲がる means to turn (around the
corner):

> すみません。 あの信号を右へ曲がってください。
>
> Excuse me. Please turn to the right on that traffic light.

and 回す means to turn something (like a leaver or knob):

> 音が小さいですね。
>
> …このつまみを右へ回すと、大きくなります。
>
> The volume is low.
>
> ...If you turn this knob to the right it will go up.

On the other hand, according to the [電子辞書](http://www.jisho.org/) 曲げる
(Transitive) means to bend something, like a steel bar or your finger.

Also 回る (Intransitive) refers to something that rotates on it's own, right now
I can think of a plane's propeller or some other mechanical part, like:

飛行機のプロペラが回っています。

Plane's propeller is rotating.

I hope this was helpful to you.

