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===Meaning===
A [[period]] is the [[time]] taken for one complete [[wave]] to pass a point.
===About Periods===
: A [[period]] is [[measure]]d in [[second]]s.
==Key Stage 4==
===About Periods===
: A [[period]] is a [[scalar]] quantity because it has [[magnitude]] but no direction.
: The [[SI Unit]] of a [[period]] is [[second]]s.
: [[Period]] may refer to the time taken for an [[oscillating]] [[object]] such as a [[pendulum]] or [[mass]] on a [[Coil Spring|spring]] to make one full [[oscillation]].
: [[Period]] may refer to the [[time]] taken for one [[wave]] to pass a point.