Talk:Q124003
Jump to navigation
Jump to search
Autodescription — speed of sound (Q124003)
description: distance travelled during a unit of time by a sound wave propagating through an elastic medium
- Useful links:
- View it! – Images depicting the item on Commons
- Report on constraint conformation of “speed of sound” claims and statements. Constraints report for items data
For help about classification, see Wikidata:Classification.
- Parent classes (classes of items which contain this one item)
- speed of sound (Q124003)
- speed (Q3711325)
- rate (Q1144560)
- scalar quantity (Q181175)
- time derivative (Q6960532)
- →(@) derivative (Q29175)
- function (Q11348)
- reciprocal duration (Q98690850)
- →(@) derivative (Q29175)
- →(¶) physical quantity (Q107715)
- speed (Q3711325)
- speed of sound (Q124003)
- Subclasses (classes which contain special kinds of items of this class)
- ⟨
speed of sound⟩ on wikidata tree visualisation (external tool)(depth=1) - Generic queries for classes
- See also
- This documentation is generated using
{{Item documentation}}.
Subclass of phase velocity?
[edit]Hello @Infovarius: Is the speed of sound (Q124003) actually defined as the phase velocity (Q13824)? In a medium with linear dispersion relation - which holds closely for air - the phase and group speed are the same. But in a dispersive medium the phase speed depends on the frequency. Toni 001 (talk) 11:06, 1 March 2020 (UTC)
- We can add some restriction, yes. Is group velocity (Q217361) better? --Infovarius (talk) 13:29, 2 March 2020 (UTC)
- I would remove the "subclass of phase velocity" statement, because - depending on context - one might refer to phase or group speed of sound. We already have the more specific items group speed of sound (Q86508881) and sound phase speed (Q86501878), which are subclasses of phase velocity (Q13824) and group velocity (Q217361), respectively. Toni 001 (talk) 09:28, 3 March 2020 (UTC)
- I am ok with these two. --Infovarius (talk) 19:43, 4 March 2020 (UTC)
- I would remove the "subclass of phase velocity" statement, because - depending on context - one might refer to phase or group speed of sound. We already have the more specific items group speed of sound (Q86508881) and sound phase speed (Q86501878), which are subclasses of phase velocity (Q13824) and group velocity (Q217361), respectively. Toni 001 (talk) 09:28, 3 March 2020 (UTC)