1. Wave Characteristics

2. Waves
Wave any disturbance that transmits energy through matter or space
Waves move through matter but they do not move the matter itself
Medium what a wave travels through (ie. water, ground, air)
Mechanical waves NEED a medium
Electromagnetic waves DO NOT NEED a medium
Vibrations of particles move the energy through media like liquid and solids and even gas like air.

3. Mechanical Waves Ocean Waves Sound Waves Seismic Waves Slinky Waves
They all need a MEDIUM to travel through!!

4. Electromagnetic Waves
Radio Waves
Micro Waves
Infrared Waves
Visible Light
Ultraviolet Radiation
X-rays
Gamma Rays
They DO NOT need a MEDIUM to travel through! They can travel through space!!

5. Types of Waves
Particles in a TRANSVERSE wave vibrate in an up and down motion, perpendicular, to the wave direction.
Particles in a LONGITUDINAL wave vibrate in a back and forth motion, parallel, to the wave direction.

6. Parts of a Transverse Wave
Crest: the highest point on a wave.
Trough: the lowest point
on a wave.

7. Longitudinal Waves
Compression: an area in a wave where the particles are closer together.
Need slinky photo here to explain
Rarefaction: an area in a wave in which the particles are spread further apart.

8. Properties of Waves
Amplitude is the height of a wave; the maximum distance particles vibrate from the rest position.
Wavelength is the distance between two adjacent corresponding parts of a wave.

9. More Properties of Waves2 3 1
The wave speed can be calculated by multiplying the wave’s wavelength by the frequency.
Frequency is the number of waves that are produced in a given time, and is measured in hertz.

10. Wave Movement… Reflection: When waves bounce off something.
Echo: A reflected sound wave
Refraction: When a wave is bent at an angle as it passes through a new medium.
Diffraction: When a wave is bent around a barrier or an opening.
Would like some images for this page and maybe split it into two slides
Resonance: When the vibration of one object causes another object nearby to vibrate. Some musical instruments use resonance to produce sound.

11. Wave Interference Interference: when two waves overlap.
Constructive interference: two waves overlap and make a larger wave
Destructive interference: two waves overlap and they cancel each other out.