PhET Teacher Activities: Experimental Design with Forces
This middle school lesson plan blends a classroom experiment with the interactive PhET simulation <i>Masses and Springs</i>. Students design and conduct an experiment to test their predictions about the behavior of springs with masses attached. The simulation is used to explore kinetic and potential energy of spring motion and to visualize how the spring moves on different planets with varied gravitational constants. The lesson provides extensive background information for both educators and lea
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