Standing waves
When a periodic wave is confined --> new effects
superposition of reflected waves with the original one--> standing waves
oscillating pattern that does not travel
understanding it by using the superposition principle
portions of the rope do not move at all : nodes
positions on the rope that have largest amplitudes: antinodes
different possible standing waves
- all have the same speed but different frequency and wave-length
- fundamental mode and harmonics
- longest wavelength: fundamental mode