1. Properties of waves
Write on the RIGHT side

2. Parts of a wave
Crests: Points where the wave is highest
Troughs: Points where the wave is lowest

3. How we can describe a wave?
By its Amplitude: how far particles in the medium move away from their normal rest position
By its Wavelength: the distance over which the wave’s shape repeats.

4. How we can describe a wave?
By its Frequency: tells you how many cycles occur in an amount of time. Frequency is measured in Hertz (Hz)
Frequency= Number of cycles
time
By its Wave Period: the time required for one cycle
Frequency is the inverse of wave period:
Frequency= ____
Period

5. Amp, Amp, Amp it up
For mechanical waves, amplitude is related to the amount of energy the wave carries
Ex: In a sound wave, the more amplitude it has, the more energy is being transferred. More energy = louder sound.

6. Frequency & amplitude of Sound Waves
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What happened to the sound as the frequency and amplitude of the wave increase?

7. Energy loss due to spreading
Wavefront: As the wave moves away from the point of origin, in the shape of a circle or a sphere, the wave loses energy

8. Reflection: Draw the wave below and label the vocab word that corresponds with each letter:
(distance)
(time) C 1 4 2 3 D