5.4.136 - Fusion conditions

Understand the mechanism of nuclear fusion and the need for very high densities of matter and very high temperatures to bring about and maintain nuclear fusion.

Use - fusion conditions to connect the rule to the data and decision in the question.

This matters because - fusion conditions determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - fusion conditions to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Fusion conditions is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.