Week 8 Term 3 2024 Doppler Effect, Beats, Two Point Source & Multi point Source Interference

 Homework

• Act 4A, p.56 Properties of Waves
• Act 5A, p.73-74 Standing Waves
• Act 5B, p.79-80 Music
• Ex 3D, p.75-79, Standing Waves and Music
• Act 6A, p.85-86 The Doppler Effect
• Ex 3E, p.81-84, Beats
• Ex 3A, p. 50-53 Basic Wave Properties
• Ex 3B, p. 57-63 Two Point Source Interference
• Ex 3C, p. 66-70 Multi Point Source Interference

Doppler Effect

The Doppler Effect: what does motion do to waves?

Doppler Effect

Intro to the Doppler Effect

Doppler Effect Observed Frequency Equation

Sonic Boom

Doppler Shifting Song

Beats

two waves of a similar frequency (similar wavelength) superimpose to come in and out of phase causing constructive and deconstructive interference respectively. This causes a warbling/beat sound of frequency (fb) equal to the difference in respective frequencies

fb = | f1 - f2 |

Wave Beats

Easy Beats- Physics

Wine Glass Resonance in Slow Motion

Two Point Source Interference

n𝜆 = dsin(𝛳)

Double Slit App - Physics Classroom

Wave-Particle Duality Applied to the Double Slit Experiment

Diffraction Grating of White Light 

(Multi-Point Source Interference)

Green vs White Light Diffraction

Multiple Point Source Interference

Multiple Point Source Interference

Thin Film Interference

Thin Film Interference

Making Colour with Holes

Why Blue is so rare

Visible Spectrum