University Physics I · Newton's Laws · 4.05
Free-body diagrams and system boundaries
External forces, particle models, coordinate choices, and equations.
Course-map guide · not a complete lesson or simulationScope & orientation
What this subsection covers
External forces, particle models, coordinate choices, and equations.A strong response uses free-body diagrams and states where the model stops being reliable.
Reasoning checklist
Evidence, assumptions and limits
Assumptions to state
State the system, observable, approximation, and conditions held fixed before using a model.
Evidence to collect
How do net force and inertial mass separately affect acceleration?
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How do net force and inertial mass separately affect acceleration? Useful evidence includes two controlled data series, linearized graphs, slope interpretation, and residuals.
Limits to state
This GioPhysics course map is an adaptable teaching sequence, not a claim of accreditation or a universal university syllabus.
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This GioPhysics course map is an adaptable teaching sequence, not a claim of accreditation or a universal university syllabus. Departments can adjust the order, mathematical depth, laboratory hours, and optional fluids endpoint to match local requirements. A result should be checked against units, signs, limiting cases, and the conditions under which its model was derived.
Diagram & examples
Work the claim before choosing an equation
Interactive concept map
Follow the model from claim to evidence.
External forces, particle models, coordinate choices, and equations.
Model, evidence, and boundary
When should a model used for Free-body diagrams and system boundaries be revised?
How do net force and inertial mass separately affect acceleration? Useful evidence includes two controlled data series, linearized graphs, slope interpretation, and residuals.
modelModel, evidence, and boundary turns the stated idea into a representation that can make a prediction.
Example questions
Try the reasoning before revealing the structure.
When should a model used for Free-body diagrams and system boundaries be revised?
Quick check
Test the reasoning, not recall
When should a model used for Free-body diagrams and system boundaries be revised?
Choose an answer to test the model.