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The Doppler Effect describes a frequency shift in reflected waves in proportion to the relative speed between the receiver and the reflected object.

For instance, in a radar speed trap, the frequency shift in reflected radio waves allows the unit to calculate the speed toward (higher frequency) or away from (lower frequency) the transmitter/receiver unit.

When you drive past a steady noise source, such a bell or a horn, the sound has a higher frequency as you approach and a lower frequency as you depart.

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Q: How does speed affect the frequency of reflected waves?
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What affect if any does increasing the speed of the plunger have on the frequency of the waves?

Increasing the speed of the plunger will increase the frequency of the waves.


What affect if any does the increasing the speed of the plunger have pn the wavelength of the waves?

Increasing the speed of the plunger will not affect the wavelength of the waves. The wavelength of the waves is determined by the frequency of the source that is creating the waves, not by the speed of the medium through which the waves are traveling.


How is the Doppler affect used to find the speeds of moving objects?

The Doppler effect is used by measuring the change in frequency of waves, such as sound or light, emitted or reflected by a moving object. By comparing the observed frequency with the emitted frequency, the speed of the object towards or away from the observer can be calculated.


What happens when sound waves change media?

When sound waves change media, their speed and direction can be altered. This is because the properties of the new medium, such as density and elasticity, affect how the sound waves travel. The frequency of the sound remains constant, but the wavelength may change.


When working with waves frequency x equals speed?

When working with waves ... or even just talking about them ... (frequency) = (speed) divided by (wavelength) (wavelength) = (speed) divided by (frequency) (frequency) times (wavelength) = (speed)


How the appearance of the pencil and the change in speed of the light waves are related?

The appearance of the pencil is due to how light is reflected off its surface. When light waves hit the pencil, they can be absorbed, transmitted, or reflected. The change in speed of the light waves as they pass through the material of the pencil can affect how much light is reflected and perceived by our eyes, resulting in the appearance of the pencil.


How do the properties of waves affect the speed frequency and period of waves?

The speed of a wave is determined by the medium it is traveling through. In general, waves with higher frequencies have shorter periods, meaning they complete more cycles in a given time. The speed of a wave remains constant as long as it stays in the same medium, regardless of frequency or period.


How does a waves speed relate to its wavelength and frequency?

The product of (wavelength) times (frequency) is the speed.


What is the formila for frequency in waves?

Frequency = Speed/Wave length.


How does the wavelength of waves traveling with the same speed change is the frequency of the waves increase?

As frequency increases, the wavelength decreases for waves traveling at the same speed. This relationship is defined by the formula: wavelength = speed of light / frequency. So, if the frequency increases, the wavelength must decrease to maintain a constant speed.


How would the wavelength of waves traveling with the same speed change if the frequency of the waves increase?

The speed of a wave is equal to the wavelength divided by the frequency (speed = wavelength/frequency). So if the frequency of the wave increases, the wavelength will decrease.


How wavelength of waves traveling with the same speed would change if the frequency of the Waves increases?

The speed of a wave is equal to the wavelength divided by the frequency (speed = wavelength/frequency). So if the frequency of the wave increases, the wavelength will decrease.