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--- 183_notes:system_choice [2014/10/29 22:06] – pwirving
+++ 183_notes:system_choice [2021/04/15 17:17] – [Choosing a System Matters] stumptyl
@@ Line 1: / Line 1: @@
+Section 7.7, 7.8 and 7.9 in Matter and Interactions (4th edition)
 ===== Choosing a System Matters =====
-Earlier, [[183_notes:energy_cons#multi-particle_systems|you read about a puzzle involving a ball falling to the Earth]]. We resolved this puzzle by introducing [[183_notes:potential_energy|the concept of potential energy]]. In these notes, you will look an example of a person lifting a box using different choices of system. The goal here is to demonstrate that the choice of a system matters.
+Earlier, [[183_notes:energy_cons#multi-particle_systems|you read about a puzzle involving a ball falling to the Earth]]. We resolved this puzzle by introducing [[183_notes:potential_energy|the concept of potential energy]]. **In these notes, you will look an example of a person lifting a box using different choices of system**. The goal here is to demonstrate that the choice of a system matters.
 ==== Lifting a box ===