 | Term | Definition |
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longitudinal |
moves the particles of the medium parallel to the direction in which the waves are going |
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frequency |
number of complete waves that pass a given point in a certain amount of time |
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hertz |
unit used to measure wave frequency |
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interference |
A pattern formed by the overlapping of two or more waves that arrive in a region at the same time |
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reflection |
the angle between the reflected wave adn the imaginary line |
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compression |
the part of a longitudinal wave in which the lines are close together |
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wavelength |
The distance between 2 correspondening parts in a wave |
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transverse |
A wave that moves a medium in a direction perpendicular to the direction in which the wave travels |
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medium |
the material in which a wave travels through |
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Wave |
Waves are a model for explaining the transfer of energy from one location to another without transferring matter |
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Mechanical Waves |
require a medium(examples: sound, water) |
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Electromagnetic waves |
Do not require a medium(ex. light, microwaves, x-rays) |
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Transverse waves |
the particles vibrate perpendicular to the direction of travel. |
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Compressional or Longitudinal |
he particles of a medium vibrateback and forth in the same direction(parallel) to the direction in which the waves travel. |
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Crest |
The top or peak of a wave. |
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Trough |
The bottom of a wave |
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Amplitude |
The distance from equilibrium or rest position to the crest |
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IF a wave loses energy to heat, what will happen to the wave |
decreases amplitude |
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If the amplitude of a wave is 2 meters, what is the total top to bottom distance of the disturbance |
double the amplitude or 4 meters |
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what creates all wave motion? What creates sound waves? |
vibrating |
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If frequency triples what happenss to the wavelength(speed stays the same |
wavelengh will decrease by 1/3 |
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What are the two primary types of waves |
mechanical waves and electromagnetic waves |
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what is the difference between longitudnal and transverse waves |
longitudinal and Transverse waves |
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If a wave loses energy to what will happen to the wave |
The amplitude of the wave decreases |
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what type of wave is a sound wave |
A sound wave can be described as both a mechanical wave and a longitudinal wave |
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wat are beats the result of |
The recrring combination of consructive and desrucutive interference when two frequencies occur at the same time |
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Whaat occurs if sound waves have constructive interference with other waves? Destructive interference? |
You increase the amplitude or loudness of the sound. You decrease the amplitude or it gets quieter |
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what is an echo |
The reflection of sound wave off of a barrier ofr other reflective surface. The wave travels twice the distance to the barrier to return back to the source of the sound |
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Does sound travel faster in solid, liquid or gas |
Solids>liquids>gases> The more rigidly fixed the molecules the faster the transmission of mechanical waves. |
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what happens to the speed of sound as temperature changes |
As the temperature increases the speed of sound increases the speed of sound increase acccording to the formula. |
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What happens to a sound wave if the amplitude is decreased? Increased? |
You decrease the energy carried in the wave when you decrease the amplitude, you increase the energy carried in the wave when you increase the amplitude |
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What is resonance? |
A vibration in an object when exposed to sound waves that match the natural frequency of the object |
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what are some everyday uses of reflected sound? |
Ultrasound medical imaging, ultra sonic range finders on cameras,,sonar, etc. |
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trough |
low point of a wave |
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crest |
top of a wave |
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longitudional/ mechanical wave |
when the particles of the medium move back and forth along the direction of the wave motion |
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rarefaction |
when the particles of a medium are far apart |
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compression |
when the particles of a medium are close together |
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transverse wave |
a wave where the particles of the medium move at right angles to the direction which the wave travels |
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What do waves transfer and how? |
energy, through the medium |
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how can you change the energy of a wave? |
by changing the amplitude and the frequency |
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wave |
particles vibrating in a certain pattern |
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medium |
the material that the wave travels through |
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energy can be carried away from its source by a |
wave |
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energy is transferred through a |
medium |
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which waves require a medium? |
longitudional/ mechanical |
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sound energy travels by |
the vibrations of particles |
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wave energy transferred without a medium |
transverse |
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Hertz |
the unit frequency is measured in |
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if the wavelength goes up then the frequency goes |
down |
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formula for frequency |
#of waves/time |
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formula for velocity |
f X w ( frequency X wavelength) |
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amplitude |
distance from the at rest line to one of the points |
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a wave length includes |
one crest and one trough |
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in a wave, particles move in a certain pattern(vibration) to the energy |
perpendicular |
| Add or remove terms from this set |
