1. We are trying to answer 2 Questions... “How is wavelength affected by frequency?” “How is wavelength affected by wave speed?”

2. “How is wavelength affected by frequency?” (keep speed same, change frequency) Have one person draw lines up and down (vibrate) slowly and have the other person pull the short end of the paper steadily. Label this piece “low frequency”. Do the same thing, but have the person draw lines up and down (vibrate) quickly. Label this piece “high frequency”. “How is wavelength affected by wave speed?” (keep frequency same, change speed) Have one person draw lines up and down (vibrate) steadily and have the other person pull the short end of the paper slowly. Label this piece “low speed”. Do the same thing, but have the other person pull the short end of the paper quickly. Label this piece “high speed”.

3. Summary You will create 4 waves… – Same speed High frequency Low frequency – Same frequency High speed Low speed Label all 4 waves (ex: “same speed, high frequency”)

4. “How is the wavelength of a wave affected by the frequency of the wave?” (or “What’s the relationship between a wave’s wavelength and its frequency?”) “How is the wavelength of a wave affected by the speed of the wave?” (or “What’s the relationship between a wave’s wavelength and its speed?”)

5. 1.Do your results seem to make sense? 2.Look at the pair of waves with different frequencies. Compare the wavelengths of the two waves. 3.Use this evidence to answer the question “How is wavelength affected by frequency?” 4.Look at your pair of waves with different velocities. Compare the wavelengths of the two waves. 5.Use this evidence to answer the question “How is wavelength affected by wave velocity?”

6. Which one of these is most likely to represent the relationship between wavelength, speed, and frequency? A.wavelength = speed * frequency B.wavelength = C.wavelength = speed frequency speed