Waves on Strings (Levels: Intro, APB)

This podcast explains standing waves on strings, including an explanation for how to calculate which frequencies of vibration will 'work' to cause a certain string to resonate at all of its different harmonic frequencies.

Intro to Sound Waves (Levels: Intro, APB)

This podcast describes several sound wave properties, and introduces the sound wave phenomena of Doppler Effect and Beat Frequency. Simple calculations are also briefly discussed.

SHM & Uniform Circular Motion (Level: APC)

This podcast deals with the similarities between simple harmonic motion and uniform circular motion. Problem-solving is discussed, using functions for position, velocity, and acceleration of a simple harmonic oscillator.

Energy in Simple Harmonic Motion (Levels: APB, APC)

This podcast explains how to think about the energy of a simple harmonic oscillator (specifically a mass-spring system), and also how to solve related problems.