Journal W-2

1. How is wave energy like solar and wind energy?

2. How might wave energy impact the environment?

Where does the energy to power our school come from? Oil? Natural gas? Coal? Solar? Wind?

Mechanical systems placed along in the ocean or along the shoreline transform energy from ocean

waves into electricity. This technology is very new but we are hopeful it can help solve part of our

energy problem around the world.

B. PROPERTIES OF WAVES

1. WAVE STRUCTURE

Add this diagram to your journal. Longitudinal

wavetransverse wave

2. Wave Measurement-draw and label these too!

Waves are described according to their

a. Amplitude (A)distance from midpoint to crest or trough; loudness

B. Wavelength () distance between 2 similar points on a wave

C. Velocity v - speed = how fast wave travels

(v= λ /T)

c. Frequency - the number of waves that pass a given point in one second

Symbol =f / measured in units of Hz

d. Period – The length of time it takes for one wavelength to pass a particular point (beginning to end)

Symbol=T / measured in units of time (s)

T = 1/f

& f = 1/T

Periodic Wave Characteristics

Period (T)

start

end

Period (T)

start

end

e. Velocity - the speed of the waveSymbol=v / measured in units of dist/time (m/s)

v = d/t = l/T = f l

The speed of a wave depends on the propertiesof the medium through which it is traveling.

Formula BibleAmplitude (A): measure from crest or trough to rest

Wavelength (): crest to crest or trough to trough

Period (T): T=1/fSpeed (s): wavelength x Frequency ( x f) Frequency (f): speed/ wavelength ( s/ )

Notice speed , frequency and wavelength are all connected

Journal W-3

C

E

A

B

D