The Doppler Effect.

Slides:

Advertisements

Similar presentations

David - Doppler He is known for the principle he proposed he first proposed in concerning the colored light of double stars in He hypothesized that.

Advertisements

Light and Atoms Chapter 3.

The Doppler Effect Refers to the frequency change in waves as objects move toward you or away from you. As things move toward you – waves become compressed,

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

Refraction Minimize t with respect to x dt/dx=0 using dL 1 /dx=x/L 1 =sin  1 and dL 2 /dx=(x-d)/L 2 = -sin  2 dt/dx=(n 1 sin  1 - n 2 sin  2 )/c =

Spectral analysis of starlight can tell us about: composition (by matching spectra). temperature (compare to blackbody curve). (line-of-sight) velocity.

Doppler Effect(1) Stationary source Stationary observer Moving source

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.

Doppler Effect.

Doppler Effect The Doppler effect is the apparent change in the frequency of a wave motion when there is relative motion between the source of the waves.

Doppler Shift October 19, 2009.

Discovery Science WavesSp2011 w Chapters 17 & 18.

Tuesday May 26 Doppler effect Warm up: What’s the best thing you did over the long weekend? NOTES Ans: 0.91 sec.

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.

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

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.

Doppler Effect - Applications

Electromagnetic Spectrum

Physics 1 Revision Lesson 6 Sound and the Red shift.

The Doppler Effect.

What is the DOPPLER EFFECT? Doppler and Sound  When sound waves are made they spread out evenly in all directions like ripples on a pool of water 

Aim: How does light provide evidence of the universe’s composition? I. Light – a form of electromagnetic radiation. A. electromagnetic radiation – energy.

Light. Review Question What is light? Review Question How can I create light with a magnet?

Waves. The time it takes for one wavelength to pass is called the period. The number of wavelengths passing at a given time is called frequency.

Sound and the Doppler Effect. Sound Waves Sound is longitudinal compression wave. Despite this fact, we can still convert and remodel sound waves into.

1 Wave Interference: Beats 2 Beats Previously we considered two interfering waves with the same . Now consider two different frequencies. When waves.

An Expanding Universe Redshift, Blueshift and the Doppler Effect.

11: Wave Phenomena 11.2 The Doppler Effect. The Doppler Effect When a car passes you on the street, the frequency of its engine note appears to change.

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.

Mr. Z’s “Waves” Unit Describe what is meant by the Doppler effect AIM: What is the Doppler effect?

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

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.

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?

Lecture 14: The Expanding Universe Astronomy 1143 – Spring 2014.

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.

The Electromagnetic Spectrum. When a beam of white light passes through a glass prism, the light is separated or refracted into a rainbow-colored band.

Doppler Effect The Doppler Effect is the change in the observed frequency caused by the motion of the wave source.

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.

Science 10 Mr. Jean April 12 th, The plan: Video clip of the day Sonic Booms Properties of sounds & light Radar Guns Doppler Effect.

Large-Scale Structure in the Universe Superclusters, walls, and voids dominate the large scale structure of the Universe.

Doppler Effect.

Doppler Effect The Doppler effect is the apparent change in the frequency of a wave motion when there is relative motion between the source of the waves.

Doppler Effect and Redshift

Mr. Z’s “Waves” Unit.

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 & Red shift

Doppler Effect.

Title: 30.1 Galaxies and The Universe

Wave Interference: Beats

Doppler Effect.

Doppler Effect and Red/blue Shift

Sound Sound is a mechanical wave that is alternating bands of high pressure and low pressure longitudinal wave requires a medium travels fastest though.

How do scientists know what stars and planets are made of?

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.

Doppler Effect Waves and Sound

11: Wave Phenomena 11.2 The Doppler Effect.

1. Review: what are the parameters of a wave?

Spectral analysis of starlight can tell us about:

Doppler Effect.

Physics 1 Unit 3: Waves Part 3:

Doppler Effect.

The Doppler Effect.

Doppler Effect Christian Doppler.

Properties of Waves Part 2.

Doppler Effect.

Radhabai Kale Mahila Mahavidyalaya, Ahmednagar

Presentation transcript:

The Doppler Effect

What is the Doppler Effect? The Doppler effect is a quantitative analysis that shows how the frequency heard by a stationary observer depends on whether the observer sees the source approaching or receding This means that waves have different observed frequencies when the wave source is in motion

A Diagram Sound waves Direction of motion

Equations for a moving source The equation for a receding object is The equation for an approaching object is

Equations for a moving observer For an observer moving towards the source For an observer moving away from the source

For light waves When light waves are emitted from a source moving away from you the light appears to be redshifted, as it is distorted back in the color spectrum towards red Also, when light is emitted for a source moving towards you it appears to be blueshifted, or moved up in the color spectrum towards blue

Diagram of light shifting Light waves Direction of motion

The Doppler double shift This occurs when a wave is reflected off of a moving object and it indicates the frequency shift and it has application in detecting blood flow rates and radar