PowerPoint PresentationSlide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Week 8 1Week 8 2Transverse or Longitudinal?The wave at a basketball gameQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 3Transverse or Longitudinal?Wave of red tail lights when traffic slows downQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 4Transverse or Longitudinal?Water wavesQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 5Transverse or Longitudinal?Sound wavesQuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 6Waves on a stringWeek 8 7Quiz/ActivityGo to http://phet.colorado.edu/simulations/Click on “Sound & Waves” on leftChoose “Waves on a String” simulationWith “No End” and “0 Damping”, “Oscillate” the string and answer these questions:• How does wave speed depend on tension?• How does wavelength depend on frequency?• How does wavelength depend on wave speed?• How does period depend on frequency?Week 8 8Week 8 9The speed of sound in air is about 343 m/s. Will the speed of sound be higher or lower on a cold day?QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 10The speed of sound in air is about 343 m/s. Will the speed of sound be higher or lower in Helium?QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.Week 8 11Week 8 12Week 8 13• To investigate the relationships between position, velocity, acceleration and restoring force for periodic motion.• To investigate the basic properties of periodic motion—period, frequency and amplitude—and the relationships between them.• To understand the interplay between potential and kinetic energy in periodic motion.LAB 7 OBJECTIVES:Week 8 14An oxygen molecule (O2) can be modeled as two masses connected by a spring-like bond. An oxygen molecule can vibrate at many different frequencies but the smallest frequency vibration it can have is 5x1013 Hz. Graph the distance between the atoms and the kinetic, potential and total energy of the molecule versus time.QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this