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Standing Waves Generator
AP Physics 1 · Unit 10 Mechanical Waves
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Learning Objectives
Identify nodes and antinodes in standing waves
Calculate harmonic frequencies: fₙ = n·f₁
Relate wavelength to string length: λₙ = 2L/n
Understand boundary conditions
Key Equations
fₙ = n·v/(2L)
λₙ = 2L/n
v = √(T/μ)
Nodes = n+1, Antinodes = n
Tags
standing waves
harmonics
nodes
antinodes
AP Physics 1
Harmonic
1st
Nodes
2
Antinodes
1
Harmonic n
1
Amplitude
50
Wave Speed (m/s)
340
Length L (m)
1.0
Calculated
λ
2.0m
f
170Hz
Display
Envelope
Node Labels
Quick Quiz
3rd harmonic on 1 m string: how many antinodes?
3
4
2
6