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

2. Warmup Use your notes from yesterday to answer the following questions: 1)What is the name for a disturbance in matter that carries energy from one place to another? 2)The __________ of a transverse wave is the maximum distance from the rest position to a crest or trough. 3)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) 7)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? 8)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? 9)The speed of light is 3 x 10 8 m/s. What is the frequency of microwaves with a wavelength of 1 cm?

5. P523 (7-9) 7)(440 Hz) x (1.5 m) = 660 m/s 8)(340 m/s) / (440 Hz) = 0.77 m 9)(3 x 10 8 m/s) / (0.01 m) = 3 x 10 10 Hz