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Pendulums. 3.P.1.3 Explain the effect of earth’s gravity on the motion of any object on or near the earth. What is a Pendulum?. A pendulum is made of an object, called a bob that dangles from the end of a rod or string and swings freely. .
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Pendulums 3.P.1.3 Explain the effect of earth’s gravity on the motion of any object on or near the earth.
What is a Pendulum? A pendulum is made of an object, called a bob that dangles from the end of a rod or string and swings freely. Retrieved from: http://www.teachengineering.org/view_lesson.php?url=collection%2Fcub_%2Flessons%2Fcub_pend%2Fcub_pend_lesson01.xml&state=North+Carolina#background