Conceptual Physics Alive: Vibrations & Sound 1

Conceptual Physics Alive: Vibrations & Sound 1 includes a digital video and questions set with answers. Observe Paul Hewitt teach in a classroom with real students, using engaging demonstrations and artwork. In this video, a coiled toy is used to illustrate the difference between transverse and longitudinal waves. Interference of waves and beats of sound is also demonstrated, followed by an explanation of shock waves and sonic booms. Segment length: 32 minutes Vibrations & Sound 1 Includes: Wiggles and jiggles. Vibrating chalk at the chalkboard illustrates low and high frequencies of vibration. Waves are illustrated when Hewitt walks across the floor to trace out a sine curve. Amplitude and wavelength of a wave. Derivation of wave speed. All electromagnetic waves have the same speed, c = 300000 km/s. Radio-wave wavelengths are calculated for different frequencies. Demonstration of slinky vibration to show longitudinal waves; then transverse waves. Ted Brattstrom demonstrates