amplitude
Let an agent explain amplitude and its measures, relay definitions and relations to energy and intensity from physics references, describe uses in acoustics, electronics and signal processing, and distinguish amplitude from frequency, wavelength, magnitude and loudness.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain amplitude and its measures, relay definitions and relations to energy and intensity from physics references, describe uses in acoustics, electronics and signal processing, and distinguish amplitude from frequency, wavelength, magnitude and loudness.
The maximum extent of a periodic variation from its equilibrium or mean value, such as the amplitude of a wave, an oscillation or an alternating electric current, measured as peak amplitude, peak-to-peak amplitude between maximum and minimum, or root mean square amplitude for varying signals; amplitude relates to the energy or intensity of a wave and is a basic quantity in physics, acoustics, electronics and signal processing.
What it is for: Not applicable; a physical quantity.
It can be explain the quantity and measures; relay relations to energy; describe uses; distinguish related quantities.
Distinguishing features
Displacement measure
Several conventions
Energy link
Cross-disciplinary
What it looks like
Not a visible object; the height of a wave on a graph.
Physical character
energy relation: proportional to amplitude squared note - for many waves
RMS of a sine: peak divided by root 2 note
peak-to-peak of a sine: 2 times peak note
How it is recognised
Maximum displacement from equilibrium
Peak, peak-to-peak and RMS amplitude; amplitude of electric current
Frequency is cycles per second; wavelength is spatial period; loudness is perceived
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is paired with - in describing waves
is used in - in radio
In practice
Families and kinds
peak amplitude
peak-to-peak amplitude
root mean square amplitude
amplitude of electric current and voltage
amplitude in quantum mechanics as probability amplitude, a distinct sense
amplitude modulation as an application
Standards and regulation
SI units for the underlying quantity
IEC definitions for electrical measurements
Failure modes and hazards
Confusing peak, peak-to-peak and RMS
Confusing amplitude with loudness or intensity
Confusing with probability amplitude
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What amplitude is.
Science.
Definition
Definition.
Definition
Definition.
- What is amplitude, and how does it differ from frequency, wavelength, magnitude and loudness? definition
- Is the question about waves, electricity, signals or quantum amplitude? boundary
Measures
Measures.
Measures
Measures.
- What are peak, peak-to-peak and RMS amplitude, and how are they related? measurement
- Which entry fits root mean square? action
Physics Physics.
Science.
Energy
Energy and intensity.
Energy
Energy.
- How does amplitude relate to energy and intensity in mechanical and electromagnetic waves? provenance
- Which references are standard? provenance
Oscillation
Oscillation.
Oscillation
Oscillation.
- How does amplitude behave in damped, driven and resonant oscillations? provenance
- Which sources are cited? provenance
Applications Applications.
Application.
Electronics
Electronics.
Electronics
Electronics.
- How is the amplitude of current and voltage measured and used in electronics? provenance
- Which entry fits alternating current? action
Acoustics
Acoustics and signals.
Acoustics
Acoustics.
- How is amplitude used in acoustics, audio and signal processing? provenance
- Which entry fits signal processing? action
Context Other senses.
Context.
Quantum
Probability amplitude.
Quantum
Quantum.
- What is probability amplitude in quantum mechanics, and how does it differ? provenance
- Which entry fits probability amplitude? action
History
History.
History
History.
- How did the concept of amplitude develop in wave theory? provenance
- Which entry fits the history of wave theory? action
What the second pass must settle
- Should peak-to-peak amplitude and probability amplitude be separate entries?
- How should physics references be linked?
- How should the registry aliases for electrical amplitude be recorded?