Properties of
Traveling Waves
IB PHYSICS | WAVES - SOUND
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Properties of Traveling Waves: Understanding Amplitude, Wavelength, and Frequency, Summaries of Physics
An introduction to traveling waves, discussing their nature as disturbances that carry energy through matter or space. It covers the concept of wave medium, the two types of waves (transverse and longitudinal), and their properties such as amplitude, wavelength, and energy. examples, diagrams, and exercises to help students understand the concepts.
Typology: Summaries
2021/2022
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Properties of
Traveling Waves
IB PHYSICS | WAVES - SOUND
What is a Wave?
Is the Medium Moving? The medium particles oscillate back and forth
Two Types of Waves Particles move perpendicular to the wave’s motion Particles move parallel to the wave’s motion
Examples:
- Ripples in a pond
- Light Waves
Examples:
- Sound Waves
- Earthquake Waves
Properties of a Wave Property Symbol Unit Amplitude Wavelength distance
Waves and Energy ↑ Amplitude = ⃝ Energy ↓ Amplitude = ⃝ Energy ↑ Wavelength = ⃝ Energy ↓ Wavelength = ⃝ Energy
How Many Waves?
Wavelength is related to frequency Longer wavelength _________ frequency Shorter wavelength _________ frequency Lower Higher
IB Physics Data Booklet
Try this… A piano string vibrates with a frequency of 262 Hz. If these sound waves have a wavelength in the air of 1.30 m, what is the speed of sound?
Read a Wave # 1
Meters Seconds
# of Waves
Period
Amplitude
Frequency
𝑓 = 1 𝑇 𝑇 = 1 𝑓
One Final Question… The crests of waves passing into a harbor are 2.1 m apart and have an amplitude of 60 cm. 12 waves pass an observer every minute. What is their frequency? What is their speed?