Last Updated
:2025/11/25
Planck speed
Noun
uncountable
Japanese Meaning
プランク長さをプランク時間で割った、理論上の速度。光速と等しいとされ、物理学においてはv_Pまたはcで表される。
Quizzes for review
(physics) The velocity equal to one Planck length per Planck time; equal to the speed of light. Symbol is v_P or c.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
Planck speed
If any particle could reach Planck speed, our current understanding of spacetime would need a complete revision.
See correct answer
If any particle could reach Planck speed, our current understanding of spacetime would need a complete revision.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1