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Physics Core/AP 1 and 2

Chapter 12: 1-9 (all) Assignment

Course Materials are always under revision! Weblecture content may change anytime prior to two weeks before scheduled chat session for content.

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Physics 12: 1-9 Sound


Reading Preparation

Text Reading: Giancoli, Physics - Principles with Applications, Chapter 12: 1-9 (all)

Study Points

Key Equations

  • Sound level: β   ( in   dB )   =   10    log   I I 0
  • Wind instrument first harmonic: l   =   ¼ λ 1    f 1   =   v 4 l
  • Doppler effect: f   =   f 0 ( v sound     ±   v obs v sound       v source )

Web Lecture

Read the following weblecture before chat: Sound

Study Activity

clicking to run the simulation will download a Java file to your computer. If you have the appropriate Java library loaded, you will be able to run the simulation locally.

Use the simulation to explore how waves interact when you very frequency, amplitude, and number of speakers, and when you use a wall at different angles to reflect the sound.

Wave Interference
Click to Run

Physics simulation Java Applets are the product of the PHET Interactive Simulations project at the University of Colorado, Boulder.

Chat Preparation Activities

Chapter Quiz

Lab Work

If you want lab credit for this course, you must complete at least 12 labs (honors course) or 18 labs (AP students). One or more lab exercises are posted for each chapter as part of the homework assignment. We will be reviewing lab work at regular intervals, so do not get behind!