1. Chapter 2 Waves
A wave is a disturbance that travels through matter or space.
Matter or space is called a medium which includes such things as
air and water.
Once the wave is created,
ENERGY
Will travel through the medium.

2. 2 Types of Waves
Longitudinal Wave : Does require a medium in order to travel. Ex. Sound
Transverse Wave : Does not require a medium in order to travel. Ex. Light

4. What determines the speed of sound ?
The density of the
material or medium
The more dense the medium, the faster sound will travel

5. Parts of a Wave Crest : the highest part of a wave
Trough : the lowest part of a wave
Wavelength : the distance from crest to crest
Wave height : The distance from trough to crest
Amplitude : the distance from the rest position to the crest

7. Frequency : the number of waves that pass a given point per second.
What is the relationship between the wavelength and frequency ?

8. Equations Speed = wavelength x frequency
Frequency = speed / wavelength
Wavelength = speed / frequency
Frequency = 1 / time

9. UNITS Speed: meters / second Wavelength: meters Frequency: Hertz
Time: seconds

10. Electromagnetic Waves
All electromagnetic waves travel ……..
Like a transverse wave
At the speed of Light ( 3.0 x 10^8 m/sec. )

11. Types of Electromagnetic Waves
Radio Wave
Microwave
Infrared
Visible Light
Ultraviolet
X ray
Gamma Ray

14. * Pictures obtained from Google Images