WAVES WAVES WAVES DESCRIBING WAVES Wavelength is the
![WAVES WAVES](https://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-1.jpg)
WAVES
![WAVES WAVES](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-2.jpg)
WAVES
![WAVES WAVES](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-3.jpg)
WAVES
![DESCRIBING WAVES Wavelength (λ) is the distance between a point on one wave and DESCRIBING WAVES Wavelength (λ) is the distance between a point on one wave and](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-4.jpg)
DESCRIBING WAVES Wavelength (λ) is the distance between a point on one wave and the same point on the next cycle of the wave measured in units λ of length λ
![DESCRIBING WAVES The amplitude of a wave is the maximum displacement of the medium DESCRIBING WAVES The amplitude of a wave is the maximum displacement of the medium](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-5.jpg)
DESCRIBING WAVES The amplitude of a wave is the maximum displacement of the medium from its rest position. amplitude
![PROPERTIES OF WAVES Any motion that repeats at regular time intervals is called periodic PROPERTIES OF WAVES Any motion that repeats at regular time intervals is called periodic](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-6.jpg)
PROPERTIES OF WAVES Any motion that repeats at regular time intervals is called periodic motion.
![PROPERTIES OF WAVES The time required for one cycle, a complete motion that returns PROPERTIES OF WAVES The time required for one cycle, a complete motion that returns](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-7.jpg)
PROPERTIES OF WAVES The time required for one cycle, a complete motion that returns to its starting point, is called the period (T). Units?
![PROPERTIES OF WAVES Any periodic motion has a frequency, the number of wave cycles PROPERTIES OF WAVES Any periodic motion has a frequency, the number of wave cycles](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-8.jpg)
PROPERTIES OF WAVES Any periodic motion has a frequency, the number of wave cycles that pass a point in a given time. • measured in hertz (Hz) • a wave’s frequency equals the frequency of the vibrating source producing the wave • f = 1/T
![FREQUENCY What is the frequency of this wave? How many wave crests pass a FREQUENCY What is the frequency of this wave? How many wave crests pass a](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-9.jpg)
FREQUENCY What is the frequency of this wave? How many wave crests pass a certain point each second?
![FREQUENCY AND WAVELENGTH How does increasing the frequency of a wave affect its wavelength? FREQUENCY AND WAVELENGTH How does increasing the frequency of a wave affect its wavelength?](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-10.jpg)
FREQUENCY AND WAVELENGTH How does increasing the frequency of a wave affect its wavelength? Increasing the frequency of a wave decreases its wavelength.
![WAVE SPEED Wave speed is the distance traveled by a given point on the WAVE SPEED Wave speed is the distance traveled by a given point on the](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-11.jpg)
WAVE SPEED Wave speed is the distance traveled by a given point on the wave (such as a crest) in a given interval of time. You can calculate wave speed by multiplying wavelength by frequency. speed = wavelength x frequency v = fλ Units will be in m/s if wavelength is in m and frequency is in Hz
![AMPLITUDE It takes more energy to produce a wave with higher crests and deeper AMPLITUDE It takes more energy to produce a wave with higher crests and deeper](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-12.jpg)
AMPLITUDE It takes more energy to produce a wave with higher crests and deeper troughs. The more energy a wave has, the greater is its amplitude. Which wave has the greater energy? Why?
![GUIDED PRACTICE One end of a rope is vibrated to produce a wave with GUIDED PRACTICE One end of a rope is vibrated to produce a wave with](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-13.jpg)
GUIDED PRACTICE One end of a rope is vibrated to produce a wave with a wavelength of 0. 25 meters. The frequency of the wave is 3. 0 hertz. What is the speed of the wave? 1. Read and Understand What information are you given? Wavelength = Frequency =
![GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-14.jpg)
GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed = ? What formula contains the given quantities and the unknown? Speed = wavelength x frequency Replace each variable with its known value. Speed =
![GUIDED PRACTICE A wave on a rope has a wavelength of 2. 0 m GUIDED PRACTICE A wave on a rope has a wavelength of 2. 0 m](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-15.jpg)
GUIDED PRACTICE A wave on a rope has a wavelength of 2. 0 m and a frequency of 2. 0 Hz. What is the speed of the wave? 1. Read and Understand What information are you given? Wavelength = Frequency =
![GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-16.jpg)
GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed = ? What formula contains the given quantities and the unknown? Speed = wavelength x frequency Replace each variable with its known value. Speed =
![GUIDED PRACTICE A motorboat is tied to a dock with its motor running. The GUIDED PRACTICE A motorboat is tied to a dock with its motor running. The](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-17.jpg)
GUIDED PRACTICE A motorboat is tied to a dock with its motor running. The spinning propeller makes a surface wave in the water with a frequency of 4 Hz and a wavelength of 0. 1 m. What is the speed of the wave? 1. Read and Understand What information are you given? Wavelength = Frequency =
![GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-18.jpg)
GUIDED PRACTICE 2. Plan and Solve What unknown are you trying to calculate? Speed = ? What formula contains the given quantities and the unknown? Speed = wavelength x frequency Replace each variable with its known value. Speed =
![INDEPENDENT PRACTICE Silently and independently complete the Wave Problems worksheet, check your answers (taped INDEPENDENT PRACTICE Silently and independently complete the Wave Problems worksheet, check your answers (taped](http://slidetodoc.com/presentation_image_h2/9ce19ab467b420811c7d2a94d0661053/image-19.jpg)
INDEPENDENT PRACTICE Silently and independently complete the Wave Problems worksheet, check your answers (taped to front of the room) and turn it in when you’re done.
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