Which physical dimension is source-backed for the SI unit m (metre)?

Answer options

• Option: time
  "time" vs. "length" Time is the physical dimension for SI; misses the target mapping. time stays thematically plausible but misses the requested target. The task targets this mapping, so time remains wrong in this prompt. time stays relevant in the graph profile but does not carry the requested relation.
• Option: electric current
  "electric current" vs. "length" Electric current is the physical; misses the target mapping. electric current stays thematically plausible but misses the requested target. The task targets this mapping, so electric current remains wrong in this prompt. electric current stays relevant in the graph profile but does not carry the requested relation.
• Option: mass
  "mass" vs. "length" Mass is the physical dimension for SI; misses the target mapping. mass stays thematically plausible but misses the requested target. The task targets this mapping, so mass remains wrong in this prompt. mass stays relevant in the graph profile but does not carry the requested relation.
• Correct: length
  "length" - target Length is the physical dimension for SI units such as the metre. length matches the requested target of this prompt most precisely. The task targets this mapping, and length remains correct in this prompt. length remains tied to the requested relation through direct in the graph profile.

Solution

length

"length" is correct: Length is the physical dimension for SI units such as the metre. The prompt targets length, so the graph keeps this mapping stable against close alternatives. Source: Wikidata. As of: 2026-02-13.

Fun fact

unit_dimension_match uses direct SI unit claims here, not conversion or symbol inference. length stays anchored with additional dataset context. The graph therefore uses a direct graph path.