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Enduring Understanding:
At the macroscopic level, forces can be categorized as either long-range (action-at-a-distance) forces or contact forces.
SCIENCE PRACTICES Argumentation 6.1 The student can justify claims with evidence. 6.2 The student can construct explanations of phenomena based on evidence produced through scientific practices.
LEARNING OBJECTIVE
3.C.4.1 Make claims about various contact forces between objects based on the microscopic cause of these forces. [SP 6.1]
3.C.4.2 Explain contact forces (tension, friction, normal, buoyant, spring) as arising from interatomic electric forces and that they therefore have certain directions.
ESSENTIAL KNOWLEDGE 3.C.4 Contact forces result from the interaction of one object touching another object, and they arise from interatomic electric forces. These forces include tension, friction, normal, spring (Physics 1), and buoyant (Physics 2).
Relevant Equations:
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