Daily Work Organizer
Friday
Question of the Day: What do waves transfer?
How do you identify transverse and
longitudinal waves?
Do Now:
1. What are things that travel by wave?
2. What do waves have to do with energy?
Agenda:
Homework
Homework:
Reading Log 14: pg 122-124
Test Corrections & Survey
Finish worksheets
Jobs
•PowerPoint Master
•2 Fantastic Student to
handback Homework
•Whiteboard eraser!
Waves
Why do we care?
Waves are all around us all the
time, even if we can’t see them.
Waves not only
explain surfing, but
they also explain
earthquakes, sound,
and one of the most
mysterious
phenomena on Earthlight
What do Waves Do?
Move energy through matter or
space
Two Types of Waves
Mechanical Waves need matter
(medium) to travel through
Electromagnetic Waves can travel
through empty space
Mechanical Waves
Mechanical waves travel through
mediums such as:
water
air
solids
Mechanical Waves
• May be longitudinal
• Or transverse
Types of Mechanical Waves
Transverse Waves – energy moves up
and down or side to side while
traveling forward
Wavelength Crest Amplitude
Trough How often = Frequency
Types of Mechanical Waves
Longitudinal/Compression Waves –
energy moves along the medium
while traveling forward
How often = Frequency
Wavelength
Types of Waves:
http://www.youtube.com/watch?v
=Rbuhdo0AZDU
Mechanical Waves
Transverse
• Has wavelength,
frequency, and
amplitude
• Energy travels
forward but moves up
and down/side to side
Longitudinal
• Has wavelength and
frequency
• Energy travels
forward in pulses
Put the following waves under the
correct category:
• A wave at a ball game
• Guitar string
• Slinky
• Flag waving in the wind
• Sound wave
• Shaking a rope
• Water wave
II. Mechanical Waves
Longitudinal
• Slinky
• Sound wave
• Water wave
Transverse
• A wave at a ball
game
• Guitar string
• Flag waving in
the wind
• Shaking a rope
• Water wave
Electromagnetic Waves – Light!
Example 1
3m
2
2m
v=fλ
3m
v =1.5 m/s
GUESS FORMULA:
G = Givens - write them all down with symbols, numbers and units
U = Unknown - write down the unknown with a question mark
E = Equation - write down the equation or equations that apply in
the problem solve the equation(s) for the desired unknown
S = Substitute - substitute the given information into the solved
equation
S = Solve - solve numerically, paying attention to units identify the
final answer by circling, boxing, or underlining it clearly check the
final answer to be sure it makes sense