Ene Wave
Transfe Without Transfe rs rgy rring Matte r
Wave
Awavecanbedescribedasa disturbancethattravelsthrougha mediumfromonelocationtoanother location.
The arethre type of wave re e s s:
chanical wave re s quirea m rial m diumto trave ate e l Me (air, wate rope r, s). ctrom tic wave do not re agne s quirea m diumto trave e l Ele (light, radio). r s d le s. Matte wave areproduce by e ctrons and particle
Me chanical Wave s
Transverse waves cause the medium to move perpendicular to the direction of the wave. Longitudinal waves cause the medium to move parallel to the direction of the wave. Surface waves are both transverse waves and longitudinal waves mixed in one medium. (Such as water waves) Torsional waves produce a twisting motion through the medium such as the ones which caused the collapse of the Tacoma Narrows Bridge.
Tacom Narrows Bridge a Torsional Oscillation
Me chanical Unive Vide rse o
Transve & Longitudinal Wave rse s
rse , s e I n a transve wave theparticle of them dium oscillatepe ndicular to thedire rpe ction of wavetrave l. , s e I n a longitudinal wave theparticle of them dium oscillatealong thedire ction of wavetrave l.
3 Type of Me s chanical Wave s
WaveTutorial Links
st.org/10796/ch8/ch8.htm http://library.thinkque .com s/wave stoc.h http://www.physicsclassroom /Class/wave
Longitudinal Tuning Fork Wave
s Vibrating tine producean alte rnating patte of high rn pre ssureand low pre ssure re gions. rn ls This patte trave away fromthefork. om ssion high pre ssure C pre faction low pre ssure Rare
Pe riod: T
ThePERIOD of a wave is the time for a particle of the medium to complete one oscillation. I riod TheS unit for pe is these cond.
Fre ncy: f que
TheFREQUENCY of a wave is the number of cycles per unit time. rtz Theunit is He (Hz) which is a cyclepe se r cond. FREQUENCY is also the reciprocal of the period.
1 f = T
1 T= f
Am plitude A :
TheAMPLITUDE of a wave is the maximum distance of a particle from the equilibrium position. I plitudeis m te e r TheS unit for am
Wave ngth: ( lambda) le
TheWAVELENGTH of a wave is the length of one complete twe cycle. n I t is thedistancebe e two conse cutivein phase points. In phase points are those that are moving in step with each other.
WaveApple ts
le plitude Phase , Wave ngth, Am que le pe d Fre ncy, Wave ngth, S e Longitudinal Wave rse Transve Wave upe S rposition Principle1 upe S rposition Principle2
WaveEquation
e qual Thespe d of a waveis e to theproduct of thewave s fre ncy and wave ngth. que le e v: wavespe d que f: fre ncy : wavelength
v= f
S rposition Principle upe
Waveinterference occurs when two or more waves act simultaneously on a medium. ne r ore s ach r, Whe ve two or m wave pass through e othe the re sulting disturbanceat a give point in them diumm n e ay usually befound by adding theindividual displace e that m nts e wavewould havecause (Principle of ach d. Superposition)
C onstructiveInte re rfe nce
onstructiveinte re rfe nce C occurs whe thewave are n s trying to displacethem dium e in thesam dire e ction.
De structiveI nte re rfe nce
n se s ple ly rlapping, the re Whe the two wave arecom te ove will becom tede ple structiveinte re . rfe nce structiveinte re occurs whe thewave are rfe nce n s De trying to displacethem diumin oppositedire e ctions.
Pulse /WaveRe ction fle
Fixe End Re ction d fle
Fre End Re cti...