IP1.30.3 Moving wave sources Moving wave sources.

Slides:

Advertisements

Similar presentations

As the police car approaches, the sound waves from its siren are compressed towards the observer. The intervals between waves diminish, which.

Advertisements

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

Doppler Effect Moving Source.

Doppler Effect.

Doppler Effect & Redshift Gharib ESS

The Doppler Effect Thursday, October 26, First, a review from yesterday…

The Doppler Effect. Doppler Effect & Sound Christian Doppler Observing the Doppler Effect Christian Doppler Observing the Doppler Effect Christian Doppler.

1© Manhattan Press (H.K.) Ltd. Source moving Observer moving Observer moving 11.5 Doppler effect Both source and observer moving Both source and observer.

D OPPLER E FFECT. R ECAP FROM L AST WEEK … Intensity Level (a.k.a., loudness) Sound Intensity.

THE DOPPLER EFFECT Section 9.5. Key Terms  Doppler Effect.

Section  The Doppler Effect: A change in frequency (pitch) due to relative motion between a source of sound and its observer.

Doppler Effect.

Using What You’ve Learned About Electromagnetic Radiation and Sound (Acoustic Energy) to Measure Speed and Distance April 2007.

Doppler Effect Physics 11.

Discuss this riddle with your partner:  How can a musician playing a single note on a horn change that note without changing the way he or she plays that.

Astrophysics and Cosmology The Wavelengths get “squished” in the direction of motion, and “stretched” in the opposite direction. Doppler Shift Longer,

CHAPTER 14 Sound Doppler Effect A train passes by you with its whistle/horn blowing. You hear one pitch (tone) as the train is coming towards you and a.

Doppler Effect Change in frequency when a source of sound is moving relative to an observer. Source of sound moving Source of sound stationary Hears lower.

Diffraction – The bending of a wave around a barrier, such as an obstacle or the edges of an opening.

Physics 1 Revision Lesson 6 Sound and the Red shift.

The Doppler Effect.

Doppler Effect. As a wave source approaches, an observer encounters waves with a higher frequency. As the wave source moves away, an observer encounters.

Doppler Effect Christian Doppler This apparent change in frequency due to the motion of the source (or receiver) is called the Doppler effect. The.

The Doppler Effect. Shown by all types of waves Properties of Waves Waves are characterized by two numbers: Wavelength,  (size of the wave) Frequency,

The Doppler Effect The sound of a police car siren changes as it moves past you. The pitch of the siren seems to change. Ahead of the car, the sound waves.

Waves Chapter 17 Key Terms w Wave- a disturbance that transmits energy through matter or space w Medium- the matter through which a wave travels w Mechanical.

Physics. Wave and Sound - 5 Session Session Objectives.

The Doppler Effect Pg 503. Bell Ringer  What do you observe when an ambulance with a flashing siren comes towards you? Away from you? Why?

The Doppler Effect Introductory Video as a sound source moves towards you it appears to have a higher frequency than normal as the source moves away it.

Doppler Effect A Doppler effect is experienced whenever there is relative motion between a source of waves and an observer. A Doppler effect is experienced.

Doppler effect Eeeeeee – yowwwwwwwwww A change in frequency or pitch of a sound detected by an observer.

Doppler Effect Shift in frequency (high to low) due to the compression of light (or sound) waves in front of a moving object and the expansion of the light.

Doppler Effect.

Doppler Effect and Redshift

The Doppler Effect THE LAST LECTURE.

Doppler Effect & Shock Waves

Doppler Effect The apparent shift in frequency caused by the movement of the sound source or the movement of the observer. When the waves get crunched.

Earth Science With Mr. Thomas.

Doppler Effect Doppler Effect – The apparent change in frequency of a wave due to the motion of the source and/or the observer Stationary Source – Moving.

CHAPTER 25 Vibration & Waves.

III.) Doppler Effect: an observed change in the frequency of a wave when the source or observer is moving A) Pitch of a sound (how high or low it is) is.

Doppler Effect and Interference

Doppler Effect.

Moving stars and changing colors

1. WHAT IS SOUND?.

How do we hear?.

1. Doppler Effect Change in frequency of a wave due to relative motion between source and observer. A sound wave frequency change is noticed as a change.

"I love hearing that lonesome wail of the train whistle as the

Doppler Effect - By Jemma and Ruby

Doppler effect Eeeeeee – yowwwwwwwwww

Harmonic Motion and Mechanical Waves

Star Light The spectrum of light a star emits can tell us what type of atom is present both inside the core and in its atmosphere. The pattern of dark.

Unit: Sound and Light Lesson 2 Properties of Sound

Red Shift & Blue Shift.

Doppler Effect Waves and Sound

11: Wave Phenomena 11.2 The Doppler Effect.

Doppler Effect.

Physics 1 Unit 3: Waves Part 3:

Doppler Effect.

The Doppler Effect.

Doppler effect Eeeeeee – yowwwwwwwwww

Doppler Effect Christian Doppler.

Doppler Effect.

Properties of Waves Part 2.

1 The Doppler shift explains

Doppler Effect and Spectroscopy

Doppler Effect.

Sound Waves, Pitch, and Loudness

The bug in the center of the puddle is bobbing up and down.

Topic 3 – Part III The Doppler Effect

Presentation transcript:

IP Moving wave sources Moving wave sources

IP Moving wave sources When the car is approaching, the pitch sounds higher and higher. When the car has passed, the pitch gets lower. This is an example of the Doppler effect.

IP Moving wave sources Why does this happen?  When the source of waves is moving towards the observer, the waves it emits are all bunched up. This gives them a shorter wavelength and therefore a higher frequency  When the wave source is moving away, the wavelength is stretched, and the waves are more spread out and therefore the frequency is lower. The Doppler effect can be heard when a police car passes you with its siren sounding.

IP Moving wave sources The speed camera emits radio waves which reflect off a car. If the car is moving towards the camera the reflected waves are more bunched up which reduces their wavelength the faster the car.