2. Wave a disturbance that transfers energy from place to place.
The material through which a wave travels is called a medium.
Ex. Gases (air), liquids (water) and solids (rope)
Waves that require a medium
through which to travel are called
mechanical waves.

3. ELECTROMAGNETIC waves.
No medium is needed for
ELECTROMAGNETIC waves.
Light, radio, x-rays, and gamma rays
are some examples of e/m waves.
All e/m waves travel through free
space at a speed of approximately
300,000 km/sec or 186,000 miles/sec.
This speed is known as the speed of light.

5. transverse longitudinal
A wave that moves the medium
in a direction perpendicular to the
direction in which the wave travels.
longitudinal
A wave that moves a medium
in a direction parallel to the
direction in which the wave travels.

7. longitudinal waves The part of a longitudinal wave
where the particles of the
medium are far apart are called
rarefactions.
where the particles of the medium
are close together are
called compressions.

8. SURFACE A combination of transverse and longitudinal.
Surface waves make objects move
in a circle relative to the direction the
wave is traveling. (think ocean wave)

9. Amplitude
Wavelength
Frequency
Speed

10. Amplitude
the maximum distance
that the particles of the medium carrying the wave move away from their rest positions.

11. the distance between two corresponding parts of a wave
Wavelength
the distance between two corresponding parts of a wave
denoted by l and measured in units of length

12. Frequency - the number of complete
waves that pass a given point in a certain amount of time.
denoted by f and measured in units of Hz

13. s = l x f Speed - the speed of a wave is how
far the wave travels in a given length
of time.
The speed of a wave depends on the properties
of the medium through which it is traveling.
Speed = wavelength x frequency
s = l x f

14. Increased Energy Decreased Energy short wavelength large amplitude
high frequency
Decreased Energy
long wavelength
small amplitude
low frequency