Lever - Lever

Japanese: てこ(梃子) - てこ
Lever - Lever
A rod that can rotate around a fixed point (fulcrum). Also called a lever. When forces P and Q act perpendicular to the rod at distances a and b from the fulcrum, if Pa = Qb, the two forces are balanced (balance, scale, etc.). Using this, if a > b, a small force P can produce a large force Q (scissors, pliers, nail puller, can opener, etc.). It is widely used in machines and tools.
→ Related topics Work (physics) | Platform scales

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:
一定点(支点)のまわりを回転できる棒。槓杆(こうかん),レバーとも。支点から距離a,bのところで力P,Qが棒に直角に作用するとき,Pa=Qbなら2力はつりあう(てんびん,さおばかりなど)。これを利用し,a>bなら小さい力Pで大きい力Qが得られる(はさみ,ペンチ,くぎぬき,缶切りなど)。機械,工具の部分に広く利用される。
→関連項目仕事(物理)|台ばかり(秤)

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