Table of Contents
What frequency does fire resonate at?
In summary, a frequency of 100 kHz (kilohertz) affected the fire the most.
How does changing frequency and amplitude impact light?
Wavelength and frequency are inversely related so that longer waves have lower frequencies, and shorter waves have higher frequencies. In the visual system, a light wave’s wavelength is generally associated with color, and its amplitude is associated with brightness.
Can fire be extinguished by sound?
Since sound waves can move oxygen and fire through pressure from their vibrations, this specific frequency of sound wave works to separate the flame molecules from the surrounding oxygen, effectively starving the fire and snuffing out the flame.
What is the frequency of air?
Air has no frequency. But it can act as a medium for propagating sound waves. In which case the frequency of the sound wave, not of the air, is whatever you want it to be, if you have equipment that can generate it.
What is the relationship between frequency and amplitude?
Frequency is inversely proportional to amplitude.
Does amplitude change with frequency?
Changing frequency does not alter the amplitude of the wave, and changing the amplitude does not alter the frequency. There is also no way to determine the amplitude of a wave from the frequency or to determine the frequency simply by knowing the amplitude of the wave.
How does a tone relate to a frequency?
Tone and frequency are the same thing. Frequency is the number of times an object oscillates per second. So a 2600hz sound is produced by a speaker cone, string, reed, etc. vibrating 2600 times per second. Tone is sort of ill-defined.
Why does a sound extinguisher go back up at 36 Hz?
Around 36 Hz the amplitude for putting out the flame started to go back up and we have several theories to explain this. The first is that the displacement of the speaker enclosure and the diameter of the port and the number of baffles all create an environment in which only resonates well at certain frequencies.
How does a speaker make a better fire extinguisher?
A speaker makes sound by displacing air the lower the frequency the faster it moves in and out. And if the speaker is moving faster it will displace more air, moving faster, thus being able to put out the flame with less intensity.
How are sound waves made in the air?
Background Problem Literature Hypothesis Materials Method Results Discussion Bibliography Link Return to Research Background Information: Sound waves are longitudinal and travel at about 343 m/s. Sound waves are made by displacing air; this is how a speaker creates sound.