1. SOUND WAVES 2. SOUND Different sounds give us different kinds of feelings, e.g. relaxation, excitement, annoyance. Noise can be useful too.Fire alarms and car horns warn…

Slide 1SoundSound Physics 102 Chapter Fourteen Amanda Hyer Slide 2 20 Hz to 20,000 Hz infrasonic ultrasonic Compressions rarefactions Audible Frequency Range Slide 3 Slide…

1.SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net SOUND K Warne 2. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation…

1. Class- VIII English 1st paper Presented by: Fauzia Jesmin Asst. Teacher Department of English 1 2. Let’s watch a video 2 3. Today’s Lesson 3 Talking off Unit - 9 Lesson…

Slide 1 Chapter 21 Sound Slide 2 What is Sound All sounds are produced by something that vibrates A wave carries energy from one place to another and without transferring…

Slide 1 Chapter 14 Sound AP Physics B Lecture Notes Slide 2 14-01 Producing a Sound Wave 14-02 Characteristics of Sound Waves 14-03 The Speed of Sound 14-05 Spherical and…

Slide 1 Slide 2 How Sounds Are Made What happens when a bell shakes or a drum moves up and down? Vibrations occur – sound is produced when matter vibrates Remember: sound…

Slide 1 Sound Waves Compressional WaveCompressional Wave Mechanical Wave (must have a medium)Mechanical Wave (must have a medium) [http://www.ccohs.ca/images/noise1.gif]…

Slide 1 Announcements 10/10/11 Prayer Exams graded, see email In HW 17-5b: be very careful to track the correct peak when plotting it for t = 0.1 s and t = 0.5 s, and when…

Slide 1 Announcements 2/16/11 Prayer Exams… hopefully graded by Friday Extra time on Lab 3: now due Tues Feb 22. Monday Feb 21 is President’s Day holiday. Tues Feb 22…