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Exploring Wave Properties: Frequency, Wavelength, and Speed

This lesson focuses on the fundamental concepts of waves, including the definitions of disturbances in matter and how energy travels. Students will complete example problems related to wave speed and review Bill Nye's video on waves. Assignments include calculating the speed of sound from a guitar string's frequency and wavelength, as well as understanding the relationships between frequency, wavelength, and wave speed using formulae. Homework involves finishing page 523 problems to reinforce learning.

erich-oliver
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Exploring Wave Properties: Frequency, Wavelength, and Speed

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Presentation Transcript

  1. ICP 4/4/13 Frequency wavelength examples Bill Nye Waves

  2. Warmup Use your notes from yesterday to answer the following questions: • What is the name for a disturbance in matter that carries energy from one place to another? • The __________ of a transverse wave is the maximum distance from the rest position to a crest or trough. • What is the formula for wave speed?

  3. Agenda • Finish example wave speed problems. • Bill Nye Video • Page 523 (7-9) (Finish for homework)

  4. P523 (7-9) • A wave along a guitar string has a frequency of 440 Hz and a wavelength of 1.5m. What is the speed of the wave? • The speed of sound in air is about 340 m/s. What is the wavelength of sound waves produced by a guitar string vibrating at 440 Hz? • The speed of light is 3 x 108 m/s. What is the frequency of microwaves with a wavelength of 1 cm?

  5. P523 (7-9) • (440 Hz) x (1.5 m) = 660 m/s • (340 m/s) / (440 Hz) = 0.77 m • (3 x 108 m/s) / (0.01 m) = 3 x 1010 Hz

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