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Answered 2014-05-18 05:14:41
Answer:Frequency

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Would there be a Doppler effect if the source of sound were stationary and the listener in motion?

Yes. The observer would still receive less - or more - wave crests per second.


Is there an appreciable Doppler effect when the motion of the source is at right angles to a listener?

Well in reality in depends on how close the source is. But as question stands: no. The Doppler effect is most appreciable when the source moves toward or away from you.


A detected apparent change in the pitch caused by the motion of a sound source or of an observer is called?

The Doppler effect.The Doppler effect.The Doppler effect.The Doppler effect.


What is the Doppler effects?

Doppler effect is the apparent change in the frequency due to motion of the source relative to the listener or vice versa . It is used to compute the velocities of stars relative to earth by noting change in wavelength.


This effect is a change in wave frequency caused by the motion of the source of the wave?

Doppler Effect Doppler Effect


What is the change in frequency of a sound due to motion of the source?

The "Doppler" shift (or Doppler effect)


What is the definition of Doppler?

An Austrian physicist, Christian Doppler, is best known for the effect named after him, the Doppler effect, which he proposed in 1842. It is the change in frequency of a wave as measured by an observer in motion relative to the source of the wave.The Doppler effect (or Doppler shift) is the change in frequency and wavelength of a wave for an observer moving relative to the source of the waves. It is commonly heard when a vehicle sounding a siren approaches, passes and recedes from an observer. The received frequency is increased (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is decreased during the receding motion. The higher or lower frequency alters the pitch of the sound as heard by a stationary listener, making it sound higher-pitched or lower-pitched.


What is the change in sound frequency caused by motion of the sound?

That is called the Doppler effect, or Doppler shift.


For the Doppler effect to occur?

For the Doppler effect to occur the measured object must be in motion (radial velocity) relative to the emitter of a wave.


What is galaxy motion and distance determined by?

By the phenonmenon of Doppler Effect


Describe the Doppler effect?

It is a change of frequency due to motion.


Does an ambulance siren's pitch really change - what if the ambulance was stationary?

Modern electronic sirens change amplitude and pitch. Older sirens produced tones that changed in amplitude (volume) but were changed in pitch by their motion relative to the listener: increasing in frequency as they approached and decreasing in frequency when they moved away. This is called the Doppler Effect.


Does the Doppler effect happen with light?

Yes, the Doppler effect can be applied to light. Any wave function can be subject to the Doppler effect if there is relative motion between the source and an observer. That's how we know that the Universe is expanding.


Would it be correct to say that the Doppler effect is the apparent change in the speed of a wave due to motion of the source?

No, the doppler effect applies to changes in frequency.


What is an apparent change in frequency of a sound source that moves relative to an observer?

The Doppler Effect. It's a change in frequency cause by the motion of the sound source, the motion of the listener, or both. As a source of sound approaches, observers hear a higher frequency. When the sound source moves away, observers hear a lower frequency. This effect was discovered by an Austrian scientist named Christian Doppler. Example: An ambulance siren. As the ambulance approaches a stationary observer, the frequency seems to increase. As the ambulance moves farther away, the loudness of the siren seems to decrease.


The blank effect allows us to use the spectrum to study a source's motion?

Doppler effect


Would it be correct to say that the Doppler effect is the apparent change in the speed of a wave due to the motion of the source?

No. The Doppler effect is about a change of frequency, not about a change of speed. The relative speed may change as well, but that's not what the Doppler effect is about.


What is the change in wave frequency caused by the motion of the source of the wave?

Doppler effect


What do you call the change in sound frequency due to a relative motion?

The Doppler Effect.


Does the wave speed change in the Doppler effect?

Yes, the Doppler effect defines the change in speed of a sound wave due to motion. As I recall, the Doppler Effect is a change in the frequency of a wave, not its speed. Yep, I'm pretty sure Doppler is a frequency change, not a speed of sound change.


How The Doppler effect is the change in sound caused by the motion of the sound source motion of the listener or both.?

The "change in sound" refers to a change in frequency. If (for example) you move compared to the sound source, then more, or less, wave crests may pass you every second, depending in which direction you move. It's best to check an article on the Doppler effect (for example, in the Wikipedia); with an illustration or animation, it is actually quite intuitive why this happens.


What effect allows us to use the spectrum to study a source's motion?

The Doppler affect


The apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound?

That is called the Doppler effect - and it doesn't only affect sounds, but all types of waves, including water waves, light waves, etc.


What effect do balanced forces have on A stationary object?

A group of forces that is balanced ... that is, forces whose vector sum is zero ... has no effect on the motion of an object, whether the object is stationary or in motion. However, they may crush the object.


What is stationary motion?

"Stationary motion" is a contradiction in terms.