Confirmation questions are classified by what they seek. Simple hal (هل البسيطة) asks whether a thing exists. Composite hal (هل المركبة) asks whether a particular property belongs to a thing already under discussion.
«هَلِ الْحَرَكَةُ مَوْجُودَةٌ؟»
Does motion exist?
«هَلِ الْحَرَكَةُ دَائِمَةٌ؟»
Is motion continuous?
The first asks about existence; the second asks about the predication of permanence. Hal remains an interrogative particle in both. The distinction lies in the subject matter of the verification, not in two unrelated lexical particles.