Matter Defined: Mass, Volume & Time? Unit Ideas?

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Discussion Overview

The discussion revolves around the definition of matter, specifically questioning why time is not included in the definition alongside mass and volume. Participants also explore the idea of what a potential SI unit for matter could be, considering alternative definitions and measurements.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Exploratory

Main Points Raised

  • One participant states that matter is defined as "anything that has mass and volume" and questions the omission of time from this definition.
  • Another participant suggests that time should be included since matter cannot exist without it, arguing that forces require time to propagate between particles.
  • There is a proposal for a potential SI unit for matter, suggesting a unit that could represent the 'inner parts' of a kilogram, such as m3/kg.
  • Some participants seek clarification on whether there are alternative definitions or units for matter beyond the kilogram.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of including time in the definition of matter, indicating a lack of consensus on this point. The discussion on potential SI units for matter also remains unresolved, with multiple ideas presented.

Contextual Notes

The discussion does not resolve the assumptions regarding the relationship between matter and time, nor does it establish a clear definition or unit for matter. The exploration of alternative units is also not fully developed.

Who May Find This Useful

This discussion may be of interest to those exploring the foundational concepts of matter in physics, as well as individuals considering the implications of definitions and units in scientific discourse.

nuby
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The definition of matter is "anything that has mass and volume". Why doesn't the definition of matter mention anything about "time". Should time be mentioned as well since matter can't exist without it?
Also, If matter had its own SI unit, what would it be?

Edit:: a unit that could be considered the 'inner parts' of a kg. i.e. m^3 / kg (?)
 
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nuby said:
If matter had its own SI unit, what would it be?

Besides the kilogram, you mean? :confused:
 
I think you have a good point.

Likely it's not explicitly mentioned because everything requires time to exist, I believe.

If there were no time, the nuclear, electromagnetic and other forces would be unable to propagate between particles.
 
jtbell said:
Besides the kilogram, you mean? :confused:

Yes, is there another way to define matter?
 

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