11-9 Shock Waves and Sonic Boom

Slides:

Advertisements

Similar presentations

Waves & Sound A. Waves 1. The nature of waves

Advertisements

Chapter 12 Sound. What is sound? Sound is a compressional wave which travels through the air through a series of compressions and rarefactions.

Chapter 21 – The Nature of Sound

Chapter 13 Sound Properties of Sound – the source of all sound waves is vibration  Sound waves – longitudinal waves – the particles in the medium are.

UNIT 7 Waves, Vibrations, and Sound 1. Thursday February 2 nd 2 WAVES, VIBRATIONS, AND SOUND.

Sound. 1. The ____ of a sound is how high or low we hear its frequency. pitch.

 Some animals such as bats, use ultrasound waves to detect obstacles and objects around them.  Ultrasounds are reflected of surfaces or objects and.

The Doppler Effect The Doppler effect is the shift in frequency of a wave that occurs when the wave source, or the detector of the wave, is moving. Applications.

Doppler Shift + observer moving towards, - observer moving away, -source moving towards, + source moving away. v = speed of sound v o = observer speed.

© 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.

Sound A Mechanical wave. The Nature of a Sound Wave Sound originates when a body moves back and forth rapidly enough to send a coursing wave through the.

20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt Sound.

SOUND WAVES, HEARING AND INTERACTIONS

Chapter 12 Sound.

Chapter 12 Sound Characteristics of Sound Sound can travel through any kind of matter, but not through a vacuum. The speed of sound is different.

More On Sound. Quality How you can tell one sound source from another even when playing the same frequency Depends on the presence of overtones.

Doppler Effect, Bow Waves, and Shock Waves Doppler Effect  ~apparent change in frequency of a wave due to the motion of the source of the wave.  If.

Sound. Sound Waves Sound is a disturbance that travels through a medium as a longitudinal wave.

Sound Waves. Refresh: Types of Waves Longitudinal or compression – vibrate parallel to velocity. ex. Sound Longitudinal or compression – vibrate parallel.

Example 6 A siren from a police car has a frequency of Hz and is moving with a velocity of 45.0 m/s. You are driving on the other side of the road.

Periodic Motion Common Example: Pendulum Some elements of periodic motion we can describe –Oscillation or Cycle –Period, T –Frequency, f –Amplitude, A.

Sound. Characteristics of Sound Intensity of Sound: Decibels The Ear and Its Response; Loudness Interference of Sound Waves; Beats Doppler Effect Topics.

Sound Lesson 2. Previously… Sound as product of vibrations Longitudinal nature of sound Medium required for transmission of sound Differing speed of sound.

1. Calculate the distance the wave travels in 3 minute if the velocity is 9 m/s and the wavelength is 6 m.

Chapter 12 Sound Characteristics of Sound Sound can travel through any kind of matter, but not through a vacuum. The speed of sound is different.

SOUND SOUND SOUND Kim Lachler Updated 2015 NCES: 6.P.1.3.

Unit 2 Lesson 2 Interactions of Sound Waves

PHYSICS and math OF SOUND

Section 15.7 The Doppler Effect and Shock Waves (cont.)

Chapter 25: Vibrations and Waves

Sound waves Sound is a form of energy produced and transmitted by vibrating matter Medium - The stuff (matter) through which waves move.

Warm-Up: Doppler Effect #1

Doppler Effect.

Chapter 25 Vibrations and Waves

1. WHAT IS SOUND?.

a. A wave is a disturbance that transfers energy from place to place.

Chapter 21 – The Nature of Sound

Waves & Sound A. Waves 1. The nature of waves

Sound Waves Longitudinal Pitch = frequency

Sound Vs. Light.

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Chapter 21 – The Nature of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

What we will do today: Carry out calculations involving ultrasound.

Sonic Booms kind of weak sonic boom recording.

December 16, 2015 What is the difference between a compression and rarefaction? What type of waves have these?

Waves & Sound A. Waves 1. The nature of waves

Waves (3) 3Week 6-7.

Waves & Sound Transmission of Waves.

Doppler Effect (Ch. 12 Sec 12 7 p.338 – 342)

Doppler Effect Waves and Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

PROPERTIES OF SOUND PROPERTIES OF SOUND.

Interactions of Sound Waves p

Chapter 13 Waves and Sound.

Waves & Sound A. Waves 1. The nature of waves

Sound Waves Longitudinal Pitch = frequency

Unit 2 Lesson 2 Interactions of Sound Waves

Chapter 13 Waves and Sound.

The Speed of Sound & Mach #

Chapter 12 Sound © 2014 Pearson Education, Inc..

Ch. 16 – Wave interaction II. The Nature of Sound Speed of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Behavior of Waves Chapter 10.3.

9th Grade Science Chapter 12d

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Waves & Sound The Nature of Sound Speed of Sound Human hearing

Interactions of Sound Waves

Presentation transcript:

11-9 Shock Waves and Sonic Boom Supersonic means traveling faster than the speed of sound…the speed is given as a Mach number … x sos/sos. A shock wave is a very large wave built by constructive interference. The bow-wave of a boat would be an analogy for the shock wave caused by a jet. The angle of the apex of the shock-wave can be found by the equation … q=vsound /vobject

12-10 Applications of Sound Sonar…SOund Navigation And Ranging Ultrasound… sos in body 1,500 m/s …smallest wavelengths are about 1.5 mm…the smaller the wavelengths of sound used in ultrasound or sonar, the smaller the objects that can be detected. Pulse-Echo Technique http://www.layyous.com/ultasound/ultrasound_video.htm

Homework (add to Monday) P379 60 and 63