Wavelength & FrequencyWavelengthWavelength is the distance between two corresponding parts of a wave, such as crest to crest distance. Wavelength is measured in units of distance such as mm, cm, and m. The shorter the wavelength of a wave the more energy it has. time5010152025303540455055frequencymeasured in Hertz (Hz)1 Hz = 1 wave/ 1 second2 Hz = 10 waves/ 5 secondspoint Bpoint ACalculating Wave SpeedThe speed of a wave is determined by the wavelength and frequency of the wave. Wave speed equals wavelength times frequency. If a wave has a frequency of 10 Hz and a wavelength of 2 m the speed of the wave will be 20 m/s. © Copyright NewPath Learning. All Rights Reserved. 94-4466Visit www.newpathlearning.com for Online Learning Resources.FrequencyFrequency is the number of complete waves that pass a point in a given time. Frequency is measured in Hertz (Hz). For waves, one Hertz equals one wave per second (1 Hz = 1/s). For example, if 10 waves pass a point in 5 seconds the frequency is 2 Hz. The more energy a wave has the higher its frequency.timewavelengthwave speed = wavelength x frequencypoint Bpoint Avλxf=20 m/s2 mx10 Hz=Hertz (Hz)frequency40 m/s2 mx20 Hz=timewavelengthpoint Bpoint AHertz (Hz)frequencytime80 m/s4 mx20 Hz=point Bpoint AwavelengthHertz (Hz)frequencyIf the wavelength stays the same but the frequency is increased to 20 Hz then the speed will increase to 40 m/s. If the wavelength increases, the speed will also increase. timeamplitudewavelengthfrequencyWith two people holding a rope, one person can move the rope up and down. If the rope is moved faster, the distance between the crests will decrease.Wavelength is the distance between two corresponding parts of a wave, such as crest to crest distance. Wavelengthis measured in units of distance such as mm, cm, and m. The shorter the wavelength of a wave the more energy it has. tttttime50101512202020200253035404550505055055frequencymmmmmmmmmmmmmmmmmeeeeeeeeeeeeeeeasured in Hertz (Hz)1 Hz = 11111111111111 wwwwwwwwwwwwwwwwwwwwaaaaaaaaaavvvvvvveeeeeeeeeeeeeee///////////////// 111111111 second2 Hz = 11111111111110000000000000000000 wwwwwwwwwwwwwwwwaaaaaaaaaaaaaavvvvvvvvvvvvvvveeeeeeeeeeeeeeeesssssssssssssss////// 5 secondspoint Bpoooiiiiiiiiiiiiiiinnnnnnnnnnnnnnntttttttttttttt AAAAAAAAAAAAAAAAAThe speed of a wave is determined by ttttttttttttthhhhhhhhhhhhhhhhhhheeeeeeeeeee wwwwwwwwavvvvvveeeeeeeeeeeelllllllllllllleeeeeeeeeeennnnnnnnngggggthh aaaaaaaannnnnnnnnnnnnnndddddddddddddddd frequency of the wave. Wave speed equals wwwwwwwwwwwwwwwaaaaaaaaaaaaaaavvvvvvvvvvvvvelennnnnnnnnnnngggggggggggggggtttttttttttthhhhhhhhhhhhtimes frequency. If a wave has a frequuuuuuueeeeeeeeeeeeeennnnnnnnnnnnnccccccccccyyyyyyyyy ooooooooofffffffffff 1111111111111000 Hz and a wavelennnnnnnggggggggggggttttttttttttttthhhhhhhhhhh of 2 m the spppppeed offffffffff tttttttttthhhhhhhhhhhhhheeeeeeeeeeeee waaaaaaavvvvvvvvvvvvvveeeeee wwwwwwwwwwwill be 20 m/s. Frequency is the number of complete waves that pass a point in a given time. Frequency is measured in Hertz (Hz). For waves, one Hertz equals one wave per second (1 Hz = 1/s). For example, if 10 waves pass a point in 5 seconds the frequency is 2 Hz. The more energy a wave has the higher its frequency.titiiiiimemmemememmemeemmmemmewavelengthwwwwwwwwwwwwwaaaaaaaaaaaaaaavvvvvvvvvvvvvveeeeeeeeeeeeeee sssssssppppppppppppppppppppeeeeeeeeeeeeeeeeeeeeeeeeeeeed = wavelength x frequencypoint Bpoint Avvvvvvvvvvvvvvvvλxf2222222200000000000000000000 mmmmmmmmmmmmmmmmmmm//////////s2 mx10 HzHertz (Hz)frequency40 m/s2 mx20 Hztimewavelengthpoint Bpoint AHertz (Hz)frequencytime80 m/s4 mx20 Hzpoint Bpoint AwavelengthHertz (Hz)frequencyIf the wwwwwwwwwwwwwavvvvvvvvvvveeeeeeeeeeeeeelllllllleeeeeeeeeeeeeeennnnnnnnnggggggggggggggggtttttttttttttthhhh stayssssssssssssss ttttttttttttttttthhhhhhhhhee ssssssssssssssaaaaaaaaaaaaaammmmmmme bbbbbbbbbbbuuuuuuuuuuttttttttttttttt ttttttthheeeeeeeee ffffffffffffrrrrrrrrequency is innnnnnnnnnnnnccccccccreeeeeeeeeeeeaaaaaaaaaaaaaaasssssssssssssseeeeeeeeeeeddddddddddddddd ttttttttoooooooo 2222222222222200000000000000000 HHHHHHHHz theeeennnnnnnnnnnn ttttttttthhhhhhhhhheeeee ssssssssssssssppppppppppppppppeeeeedddddd wwwwwwwwwwwwwwwwiiiiiiiiiill innnnnnnnnnncccccrease tttttttttttttoooooooooooooo 44444444444444440 m//sssssssss. IIIIIIffffffffff the wavelength increases, the sssssssssspppppppppppppppeeeeeeeeeeeeeed will also increase. timeamplitudewavelengthfrequencyWiittttttttttthhhhhhhhhhhhhhhhhhhh tttwwwwwwwwwwwwwwoooooooooo ppppppppppppppeeeeeeeeoooooooooooppppppppppppppplllleeeeeeeeeee hhhhhhhhhhhoooooollllldddddddddddddddiiiiiiiiiiiiiiiing a rrrrrrrroooooooooooooopppppppppppppppppppppeeeeeeeeee,,,,,,, oooooooooooonnnnnnnnnnnnneeeeeeeeeee ppppppppppppppeeeeeeeeeeeerrrrrrrrrrrsssssson cccccccccccccaaaaaaaaaaaaaannnnnnnnn mmmmmmmmmmmmmmoooooooooooooovvvvvvvvvvvveeeeeeeeeeee tttttttttttttthhhhhhhhhe rope uuuuuuuuuuuppppppppppppppppp aaaaaaaaaaaaannnnnnnnnnnnnnnndddddddddddddddddd dddddddddddddddooooooooown. IIIIIIIIIff thhhhhhhhhhhhhhhhheeeeeeeeeeeeee roppppppppppeeeeeeeeeeeee iiisssssssssss mmmmmmmmmmmmmmooooooooooooooovvved faster, tttttttttttthhhhhhhhhhhhhhhhhhheeeeeeeeeeeee rddddddddiiiiiiiiiiiissssssssssssssttttttttttttttttaaaaaaaaaaaaannnnnnnnnncebbbbbbbbbeeeeeeeeeettttttweeeennnnnnnnnnnnnnnn ttttttthhhhhhhhhhhhhhhhheeeeeeeeeeeeee ccrests wwwwwwwwwwwwwwwwiiiiiiiilll decreeeeeeeeeeeaaaaaaaaaaaaaassssssssssseeeeeeeeeeeeee...
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