WARM UP (Index card)
KWL Chart (NB pg. 48)
KNOW
WANT TO
KNOW
LEARNED
Slinky Lab (NB pg. 49)
• Question: Is it possible for waves to travel in
various directions?
• Materials: NBs, pencil, slinky
• Procedures:
1. Each person holds an end of the slinky.
2. Determine how to move the slinky WITHOUT lifting
any parts of it off of the ground!!
3. Sketch and describe the motion of the slinky.
• Data: (sketch/describe slinky motion)
WARM UP (Index Card)
1. Write the formula for calculating speed.
2. A car travels 110 miles in 2 hours. What is the
average speed of the car?
3. Gabrielle runs 300 meters in 4 min. What is
Gabrielle’s average speed?
Types of Waves Notes
(NB pg. 50-51)
Wave – repeating disturbance or vibration that
transfers or moves energy from place to place.
2 Categories of Waves:
1. Mechanical
2. Electromagnetic (EM)
Mechanical Waves – require a medium (solid, liquid,
or gas) to travel through in order to transfer energy;
there are 2 types.
1. Transverse waves – move
medium particles at
perpendicular direction as they
go up/down and side/side
Ex: light waves, ocean waves, some
earthquake waves (seismic)
2. Longitudinal waves – move
medium particles in a parallel
direction as they push them
together and move them apart.
 Ex: sound waves, some earthquake
waves (seismic)
Wave Properties
(NB pg. 51)
 Waves can be measured based on the following
properties:
1. Amplitude - is a measure of the distance from
the resting point to the crest or trough of a
transverse wave.
2. Frequency - is a measure of how many waves
pass a point in a certain amount of time
3. Wavelength - is a measure of the distance from
the resting point to the crest or trough of a
transverse wave
4. Speed - is a measure of how fast a wave travels a
certain distance in an amount of time
Wave Property Illustrations
Wave
Properties
Low amplitude/ Low
frequency
Low amplitude/ High
frequency
High amplitude/ Low
frequency
High amplitude/ High
frequency
Sketch
Wavelength