AP Physics 1 Unit 6 MCQ A #1
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In experiment 1, a block of mass M is attached to the end of vertical spring of spring constant k0 with its free end at vertical position L0, as shown in Figure 1. The mass of the spring is considered to be negligible. When the block is attached to the spring and is at rest at the block-spring’s equilibrium position, the spring is stretched so that its end is at a new position L1, as shown in Figure 2. The block is then pulled down to a new vertical position L2 and then released from rest so that the block-spring system oscillates. Assume that the reference line for zero gravitational potential energy of the system is at the lowest point in the system’s vertical displacement from equilibrium. The experiment is assumed to be performed near Earth’s surface.
What is the magnitude of the change in potential energy of the block-spring system when it travels from its lowest vertical position to its highest vertical position?
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