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54 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Wave |
Disturbance carrying enrgy |
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Mechanical electromagnetic |
2 classifcation of waves |
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Mechanical |
Require medium to propagate Examples of media: air, solid, liquid |
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Transverse |
Type of mechanical waves Where motion of particles is perpendicular to the wave direction/propanation |
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Longitudinal |
Type of mechanical waves Propagation of waves is in same direction(parallel) as movement of particles of medium |
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Solid |
Sound waves travel fastest in _ and slowest in (Hint) |
Gas |
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340 m/s |
Speed of sound in air |
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Directly |
Direction of dry air is _ proportional to the speed of sound (in m/s) Sound in air depends on temp |
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Aluminum |
Speed of sound on_ is 6420 m/s |
(solid) |
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seawater |
Speed of sound on _ is 1531 |
(liquid) |
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Hydrogen |
Speed of sound on _ is 1284 |
(gas) |
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Electromagnetic |
Wave classification Dont require medium |
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Vacuum |
Absence of medium |
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Light |
Travels fastest in vacuum Its speed in vacuum: (Hint) |
299792458 m/s |
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Cosmic Gamma Xray Ultraviolet Visible Infrared Microwave Radiowave |
Electromagnetic spectrum from greatest energy |
CGXUVIMR |
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Cosmic radiation Gamma radiation |
Greatest frequency in EM Spectrum |
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Radiowave |
Longest wavelength in EM spectrum |
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Amplitude |
Distance from equilibrium position to either crest or trough |
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Period |
Time it takes to complete 1 vibration |
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Frequency |
Number of waves created per time |
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Hertz |
Waves per second |
1 Hz = 1 cycle/vibration per second |
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Inverse |
Relationship of period and frequency |
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Compression |
Property of sound wave Area of higher pressure(high concentration) Maraming particles ang nagsisiksikan sa isang area |
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Rarefaction |
Area of lower pressure Property of sound wave |
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Compression Rarefaction Pitch Loudness Timbre |
Properties of sound wave |
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Area density |
Density on Kasiksikan/concentration High pressure area is an area na sobrang siksik/concentrated |
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Volume density |
Density with equation mass/volume |
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Pitch |
Sensation of frequency Frequency of vibration Measured in Hertz |
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Inversely |
Size and mass are _ proportional |
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Infrasound/infrasonic |
Pitch below 20Hz |
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20 Hz-20000 Hz |
Audible frequncy range in Hz |
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Audible frequncy range |
Pitch na rinig ng tao |
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Ultrasound |
Pitch over 20000 Hz |
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Loudness |
Property of sound wave Describes how sounds are perceived AKA (Hint) Subjective |
Sound volume |
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How much energy reaches each second Frequency of the sound Its duration |
Factors affecting loudness for human hearing |
HFD |
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Intensity |
Rate of energy transferred by a sound Depends on amplitude of a wave Measured in (Hint) |
Decibels |
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2kHz |
Ear is most sensitive to sounds of _ Hz If amplitude stays the same while (hint) changes, it will sound loudest at about _Hz |
Frequency |
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Reference value |
Soundloudness is relative in nature Decibwl is usually measured by comparing the insity of sound to a certain __ |
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Timbre |
Sound quality Property of sound wave This is why it is possible to identify 2 different sounds with same pitch and loudness |
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Harmonics |
Produces a mix of frequencies related related to this fundamental frequency |
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Spectral analysis |
Various softwate packages can reveal multiple frequencies present in a sound and their relative intensities |
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Vocals folds |
Nagpoproducr ng vibrations na nagpoporoduce ng sounds kapag nagsasalita Part ng body |
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Nasal and oral cavities |
Help produce sound better |
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Mouth |
If we want to produce sound w/ higher/lower intensity, we move our _ Parts include (Hint) |
teetH lips tongue |
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Buzzing |
_ sounds are produced by vocal folds in the larynx |
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Vocal tract |
__ dynamically changes sounds fr larynx to recognizable speech |
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Wavelength |
In the sound applet, the distance between 2 dark patterns or 2 light patterns |
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Light patterns |
In the sound applet, these are areas with higher values Nagkakaroon ng (Hint) interfernce Higher amplitude |
Constructive |
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Dark patterns |
In the sound applet,these are areas of lower values Areas of (Hint) interference Lower amplitude |
Destructive |
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Speaker Street bands Musical instruments Animal Vehicles |
Give 5 sources of sound |
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Music Leisure Communication Teaching |
Give 4 uses of sound |
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Cover ears Move away Use ear plugs |
How to protect from excess sounds |
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Seeing Cooking Photosynthesis Source of energy |
4 Uses of light |
SCPS |
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Use sunglases/sublock/hat Stay at home |
How to protect from excess light |
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