File:Simple_gravity_pendulum.svg · Wikimedia Commons · See Wikimedia Commons
AI overview
A pendulum is a weight suspended from a fixed point that swings back and forth under the influence of gravity. Pendulums matter because their regular, predictable motion has made them useful for timekeeping and studying the principles of physics.
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Article · 中文
擺是一種實驗儀器，可用來展現種種力學現象。最基本的擺由一條繩或竿，和一個錘組成。錘繫在繩的下方，繩的另一端固定。當推動擺時，錘來回移動。擺可以作一個計時器。
Abstract from DBpedia / Wikipedia · CC BY-SA
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