May 21st, 2013 What type of wave is a sound wave?

Slides:

Advertisements

Similar presentations

P H Y S I C S Chapter 7: Waves and Vibrations Section 7C: Wave Properties and Sound.

Advertisements

Learning Goals: Define wavelength, frequency, period, and amplitude. Describe the relationship between frequency and wavelength. Explain how a wave’s energy.

KWL Chart on WAVES What I KNOW What I WANT to know What I LEARNED.

“ a disturbance or variation that transfers energy progressively from point to point in a medium and that may take the form of an elastic deformation or.

Mechanical Waves.

1 VIBRATION AND WAVES Sound and Light 2 3 Pendulum.

Ch. 17 – Mechanical Waves & Sound

Waves Chapter 25. Waves Waves are everywhere. Sound waves, light waves, water waves, stadium waves, earthquake waves, waves on a string, and slinky waves.

MANY PROPERITIES OF LIGHT CAN BE UNDERSTOOD USING A WAVE MODEL OF LIGHT.

Waves Transferring Energy. Waves: traveling disturbance that carries energy from one place to another Waves travel through water, but they do not carry.

Chapter 15.2 – Characteristics of Waves amplitude – the maximum distance that the particles of a wave’s medium vibrate from their rest position -in a transverse.

Game Time! Review of Waves. Supplies Needed One white board for each student One dry erase marker for each student Paper towel to erase Calculator Thinking.

Chapter 11 Waves.

What is a wave?  A wave is a transfer of energy from one point to another via a traveling disturbance  A wave is characterized by its wavelength, frequency,

The Nature and Properties of Waves Section 11.1 & 11.2.

Waves and Sound Review. #1 Transverse Wave Crest Trough Amplitude Home Wavelength.

Essential Question: How does data collected provide evidence that the amount of energy a wave carries determines the properties of a wave?

Waves and Periodic Motion What are Waves?

What are waves? a disturbance that transfers energy from place to place. Classified as either 1. Mechanical- require a medium 2. Electromagnetic- do not.

Measurements of waves: Transverse waves: Compression waves: compressionrarefaction.

WAVES Regular, Rhythmic disturbance in a field or medium where a transfer of energy occurs.

Properties of Waves.  Since the waves move back and forth objects move up and down. Imagine riding a water wave. You move up and down because the wave.

 What type of wave is a sound wave?  What is included in one wave cycle?

Waves and Wave Properties. A wave is a disturbance that carries energy from place to place. A wave does NOT carry matter with it! It just moves the matter.

What is a wave? Waves are rhythmic disturbances that carry energy through matter or space A medium is the material through which a wave travels.

What is sound?* Sound begins with a vibration. Sounds travel in waves through a medium.

Waves 23.2 – Properties of Waves pp Waves A wave is an oscillation that travels from one place to another. A wave is an oscillation that.

Waves. Definitions Wave: a disturbance that transfers energy through a medium. The matter does not experience net movement, but vibrates about some rest.

Section 1 & 2: The Nature of Waves. Waves A wave is a repeating disturbance or movement that transfers energy through matter or space. A wave will only.

WavesSection 2 Bellringer In the diagram, A is the distance from a point on one wave to an identical point on the next wave. What might this distance be.

Measuring Waves Physics 7(B). Learning Objectives Describe and measure the parts of a wave Explain the relationship between frequency and wavelength Use.

WavesSection 2 Wave Properties 〉 What are some ways to measure and compare waves? 〉 Amplitude and wavelength are measurements of distance. Period and frequency.

Wave Characteristics. 1 What is a wave In a transverse wave, the vibration of the individual particles of the medium is perpendicular to the direction.

Oct 30  Projects due tomorrow!  QOD- How are frequency and wavelength related?  Today: 17.1 – 17.2 notes.

Objective: 1)Describe wave motion in terms of wavelength, frequency, amplitude, and energy. 2) Identify various types of waves. 3) Explain wave properties.

Mechanical Waves.

AIM: WAVES and Optics WRITE NOW: What is a wave? What is a medium?

Unit: Waves and Sound I Can Statements.

Define “wave” Explain why there is no sound in space Define “period”

Waves Chapter 25.

What is a wave? Definition: a disturbance in space and time

Waves transmit energy but not matter.

Waves Check your notes!.

An Introduction to Waves

8th Grade integrated science

Chp Properties of Mechanical Waves

Ch. 20 Sec. 1 & 2 The Nature of Waves & Properties of Waves

Notes 2: Wave Properties

P. Sci. Unit 5 Waves Chapter 17.

Waves Wave properties.

Section 2 – Properties of Waves pp

Mechanical vs. Electromagnetic Waves

Section 2 – Properties of Waves pp

8.P.3A.1-2 Notes

The Nature and Properties of Waves

Section 2 – Properties of Waves pp

Wave Properties Learning Goals:

Wave Properties.

Waves Wave: a rhythmic disturbance that transfers energy through matter or space. Carries energy without carrying matter from place to place.

Wave Properties Chapter 10.2.

May 15, 2009 Is there sound in space? Why or why not?

Waves & Sound Unit 6.

Waves What are waves?.

Section 2 – Properties of Waves pp

Parts of a Wave.

Parts of a Wave.

Introduction to Mechanical Waves

June 1, 2010 How is sound made? (Do not say instruments… think more in terms of the SCIENCE of sound!) 2. Is there sound in space? Why or why not?

Presentation transcript:

May 21st, 2013 What type of wave is a sound wave? What is included in one wave cycle?

Q: What do you mean when you talk about the frequency and period of a wave? Amount of wave cycles that pass in a certain amount of time NOT the same as speed of a wave! f = cycles time

Q: What do you mean when you talk about the frequency and period of a wave? Frequency, cont Units: Hertz, Hz (cycles per second) Increased frequency means higher “pitch”

Q: What do you mean when you talk about the frequency and period of a wave? The amount of time it takes for one complete cycle (wavelength) Units: same as for time (seconds, hours, minutes, years, etc)

Q: What do you mean when you talk about the frequency and period of a wave? Relationship between the two As you increase the frequency, the period will decrease Inversely related

Q: What do you mean when you talk about the frequency and period of a wave? Equation: Period = 1/frequancy Units: Frequency is hertz (Hz) Period/time in seconds

PRACTICE PROBLEMS Frieda the fly flaps its wings back and forth 121 times each second. The period of the wing flapping is ____.

PRACTICE PROBLEMS 2. The period of the sound wave produced by a 440 Hertz tuning fork is _________.

PRACTICE PROBLEMS 3. A tennis coach paces back and forth along the sideline 10 times in 2 minutes. The frequency of her pacing is ______.

PRACTICE PROBLEMS 4. Olive Udadi accompanies her father to the park for an afternoon of fun. While there, she hops on the swing and begins a motion characterized by a complete back-and-forth cycle every 2 sec. The frequency of swing is _____. The period of swing is ______.

Q: What is the relationship between speed, frequency, and wavelength? Speed is not dependent on wavelength or frequency Speed IS dependent on the medium of travel Sound waves travel fastest through solids and slowest through gases Think of the closeness of particles/ease of energy transfer!

Q: What is the relationship between speed, frequency, and wavelength? As the wavelength increases: Waves spread out, so frequency decreases Wavelength and frequency are INVERSELY related

Q: What is the relationship between speed, frequency, and wavelength? WAVE Equation: Speed = wavelength x frequency Units: frequency in hertz (Hz) wavelength can be any type of distance units velocity is in distance units over seconds

PRACTICE PROBLEMS 1. Mac and Tosh stand 8 meters apart and demonstrate the motion of a transverse wave on a snakey. The wave can be described as having a vertical distance of 32 cm from a trough to a crest, a frequency of 2.4 Hz, and a horizontal distance of 48 cm from a crest to the nearest trough. Determine the amplitude, period, and wavelength and speed of such a wave.

PRACTICE PROBLEMS 2. Ocean waves are observed to travel along the water surface during a developing storm. A Coast Guard weather station observes that there is a vertical distance from high point to low point of 4.6 meters and a horizontal distance of 8.6 meters between adjacent crests. The waves splash into the station once every 6.2 seconds. Determine the frequency and the speed of these waves.

Homework Part 3 of pkt Continue working on exam review!