General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Review 1)What is the unit for speed (velocity)? 2)What is the unit for.

Slides:

Advertisements

Similar presentations

Sound too high to hear Ultrasound Slide 1. Slide 2.

Advertisements

IP Frequency and pitch © Oxford University Press 2011 Frequency and pitch.

Measuring Distance with Sound Waves. You are driving and need to determine the distance between your car and the car in front of you. Come up with a way.

1© Manhattan Press (H.K.) Ltd. Loudness, pitch and quality Intensity level and loudness Intensity level and loudness 11.2 Properties of sound.

+ Perceiving Sound. + Before we start! A review of Light.

Compressional Waves.  Requires a medium for propagation.  Compression of molecules transmit sound.

WAVE CHARACTERISTICS. TRANSVERSE WAVE Crest: highest point of a transverse wave. Trough: lowest point of a transverse wave. Amplitude maximum distance.

Riley Pennington.  Infrasound  Ultrasound  Refraction,Diffraction & Reflection  Websites used.

Physical Science Waves and Sound Lincoln High School Mr. Lowery Earth Science (slightly modified for Integrated Science: Ms. Gall 2011)

Animal Communications! By : Tiffany Kapusta.

An Intro to Waves Hz are units of: A. amplitudeB. frequency C. periodD. wavelength In a sound wave, rarefactions are areas of: A. high amplitude B. low.

Sound Overview The Facts of Sound The Ear and Sound Sound Vocabulary Musical Instruments and Sound.

Tilak college of education Technology based teching Roll no-92 Name : Rachna Kandalkar.

When something moves back and forth, up and down, or side to side we say it vibrates. A vibration is a wiggle. When this wiggle moves through space and.

Unit 10: Sound.

Making Sound a longitudinal wave produced when matter vibrates – this in turn, causes the medium in which it is in to vibrate ex: tuning fork (the matter)

Sound, Sound Energy and Speed Sound Creating Sound Moving Sound Inquiry Noise Cancelling Headphones The Speed of Sound.

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Grades close this Friday. Please complete all make-up work by then.

Thursday PS 1-3 Homework Light Sound.

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

Sound! Speed of Sound: in air at 0°C, sound travels at m/s (~760 mi/hr). When air is _____, the molecules move faster, and so sound travels more.

SOUND Can You Hear Me Now?. GOAL 5: Students will describe the characteristics of and investigate Wave Motion, Sound, and Light.  Objective 1: Differentiate.

SOUND WAVES are the result of VIBRATIONS

Waves & Wave Properties Sound Waves

Sound and Light Chapter 12. Sound A longitudinal wave that spreads in all directions Speed depends on medium –Solids and liquids = quick movement –Gasses.

Infrasound Waves Infrasound is sound that is lower in frequency than 20 Hz (Hertz) or cycles per second, the "normal" limit of human hearing. Five organisms.

Sound Chapter Properties of Sound Sound waves – Longitudinal Waves – Caused by vibrations – Carry energy outward, which hit your ear.

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

Sound Energy What is sound? Sound is – A form of energy made by vibrations. – When an object vibrates it causes the air particles around it to move.

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

What we will do today: Investigate the range of human hearing. State what is meant by Ultrasound. Give one medical use of ultrasound in medicine. Give.

1 PHYSICS Mr. BALDWIN WAVES 7-Feb-14 AIM: How does sound travel? DO NOW 1.How is sound generated (created)? 2.What is an echo? 3.What type of wave is a.

PROPERTIES OF SOUND CHAPTER 2, SECTION 2. Loudness describes your ___PERCEPTION__ of the energy of a sound. The loudness of sound depends on 2 factors:

SOUND WAVES How sound travels and how we hear it!.

Sound Waves March 22-23, The nature of sound What is a tuning fork? How are they used? How do we know that sound is a wave? Visualizing sound waves.

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

Intro to waves. The source of all waves is something that vibrates Wave Description.

Book Chapters 16 and 17 Unit 8 - Waves and Sound.

Sound. Characteristics Loudness --> Amplitude Pitch -->frequency.

Waves and the Electromagnetic Spectrum Ms. Twardowski 8 Tan Dover Central Middle School.

Chapter 16 - Sound  Sound waves are longitudinal waves with rarefaction and compression.  As an object’s vibration moves toward air it creates a compression.

Properties and Interactions of Sound

Sound and Light Chapter 12.

Frequency determines pitch

With sound this equates to how loud the sound appears

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

Unit 6 Chapter 18 & 19 Sound and Light

-The Ear -Beats Physics Mrs. Coyle.

Humans and Other Animals

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

The Nature of Sound Chapter 21

Sound Speed and Frequency: Learning Goal

Sound Waves Longitudinal Pitch = frequency

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

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

Sound Waves Longitudinal Pitch = frequency

Chapter 4-1 Sound.

-The Ear -Beats Physics Mr. Berman.

Humans and Other Animals

Waves 2016 EdExcel GCSE Physics Topic 4 W Richards The Weald School

How sound travels and how we hear it!

Presentation transcript:

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Review 1)What is the unit for speed (velocity)? 2)What is the unit for frequency? 3)What is the unit for wavelength? 4)What are the symbols for velocity, frequency, wavelength? m/s vib/s or Hertz m v, f, λ 1

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Review 4)How do bees buzz? 5)Which has a higher sound,a bee or a mosquito? 6)Why? Wings vibrating Mosquito Mosquito’s wings vibrate faster… Bees (200 vib/s) Mosquito ( vib/s) 2

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Review  What is a wavelength?  What is a frequency?  What is a velocity? The distance between 2 identical parts of a wave How fast something vibrates The speed of an object 3

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. What is the name of this type of wave? Longitudinal Is it a sound or light wave? Sound 4

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Pitch 5

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Pitch- how high or low the frequency of sound is   com/watch?v=O4qo JZjRG9A com/watch?v=O4qo JZjRG9A Humans can hear frequencies in the range of 20 – Hz (normal) 6

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Infrasonic  Infrasound is low frequency sound, inaudible to human, although we may feel the very slow vibrations. 7

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Animals and Infrasonic Earthquake waves and finding oil are infrasound. Elephants ( 6 miles), whales (hundreds of miles) and some other large animals can hear/produce infrasound  hale_song#Song_of_the_Hu mpback_Whale hale_song#Song_of_the_Hu mpback_Whale 8

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Ultrasound Ultrasound is high frequency sound, above Hz, too high to be heard by humans. Ultrasound echoes can be used to measure distance (SONAR) and to see inside objects (scans). 9

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Animals and Ultrasonic bats and dolphins- can hear frequencies up to Hz dogs – to Hz ch?v=M_MAGGIOx-A 10

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Remember…we can’t hear “infra” (below) or “ultra” (above) sonic 11