1. Characteristics of Waves LeAnn Hooper Cheryl Jones Mandy Yniguez

2. How are waves used in our everyday lives? Sound waves are heard through speaking and listening Water waves effect our earth through tsunamis Playing the drums in band

3. How do the characteristics of waves change the world around you? If the tsunamis amplitude changes (higher waves) then there will be more destruction. Music a higher frequency has a fast tempo. Surfers can ride have time to rest if the wavelength is longer between wave.

4. Demonstration of wave The wave moved up (transverse) and down and the medium was the rope which is a solid

5. Types of Waves Transverse wave Longitudinal/Compressional wave Combination wave

6. Transverse wave Up and down movement or side to side Wave moves at a right angle compared to the direction the wave moves Example: Transverse wave caused by a rock thrown in water

7. Longitudinal/Compressional Wave Particles move back and forth, the same direction as the waves are traveling Particles close together are compressions, particles of the wave that are far apart are rarefactions Example: Slinky

8. How can waves change? A wave can get higher The amplitude increases

9. Properties of Waves amplitude wavelength

10. Properties of waves Longitudinal wave diagram

11. Frequency Frequency is how many times a wave passes a given point in a certain amount of time Unit of measurement is Hertz (hz)

12. Wave Speed Speed = Wavelength x Frequency A wave has a wavelength of 5 mm and a frequency of 2 Hz. At what speed does the wave travel? Answer – 5 mm x 2 hz = 25 mm/hz

13. Wavy Motion

14. How can waves help me to understand my world?