PHY.6:8 - Common Anti-Patterns and How to Avoid Them

Misstep exposed by the construction	Consequence	Repair
Expect conservation to determine every rate	The momentum balance still lacks the connecting force.	Supply and qualify the interaction’s response law.
Remove internal force from each body because it cancels in the total	The relative motion disappears from the description.	Combine balances for the total while retaining the force in the part equations.
Treat mechanical damping as destruction of total energy	The energy account misses heating and possible feedback on the response.	Identify the receiving energy form and retain its dynamics when it affects the answer.
Read a total as a spatial prediction	An integrated species amount is used to infer a local concentration peak.	Restore the distribution and the conditions its evolution needs.
Impose an ideal connection on incompatible initial values	The capacitor transient is undefined within the chosen smooth account.	Resolve the preparation or represent the establishing interaction.
Build a detailed transient before using a sufficient balance	Work grows although the settled value or total is already determined.	Derive the required consequence first and expand only where needed.