1. WARM UP (Index card)

2. KWL Chart (NB pg. 48) K NOW W ANT TO KNOW L EARNED

3. 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)

4. 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?

5. 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.

6. 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)

7. 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)

8. 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

9. Wave Property Illustrations Wave Properties SketchWavelength Low amplitude/ Low frequency Low amplitude/ High frequency High amplitude/ Low frequency High amplitude/ High frequency