
November 9, 2009 through November 16, 2009
In this activity, students use a precompiled data set to explore the relationship between force, torque, and lever arm. They study data collected for a first-class lever. The resistance force and resistance arm were kept constant during the experiment, but the effort arm varied. The effort force needed to balance the lever was measured with a force sensor. |
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Students examine the data on effort arm and effort force. They identify the qualitative relationship. |
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Students use the collected data to calculate the effort torque. They compare the effort torque with the resistance torque and confirm that balanced torques produce no rotational acceleration. |
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