1. DO NOW SILENTLY TURN IN YOUR LAB SAFETY CONTRACT TO JUPITER GRADES
THEN TURN TO PAGE 5 IN YOUR SPIRAL
SKETCH THE CLASSROOM AND LABEL:
2 EXITS, THE FIRE BLANKET, FIRE EXTINGUISHER, AND THE EYE WASHING STATION.

3. 4 MEMBERS TO A TABLE
TAKE YOUR IPAD

4. AT THE TABLE
7 MINUTES READ THE DIRECTIONS AND MAKE A WORD CHART USING THE WORDS IN THE ENVELOPE,
TAKE A PICTURE OF YOUR CHART

5. -Wave length -Frequency
Word Bank
-Waves Amplitude
-Wave length Frequency
-Electromagnetic wave
-Electromagnetic spectrum -Mechanical wave

6. The Nature of Waves
Write down as much as you can think of when you hear the word waves….

7. What exactly is a wave?
Wave: Any disturbance that can distribute and can transmit energy through matter or space.
Matter meaning liquids, gases, or solids
Other examples….
Radio waves
Analog or HD digital TV signals
Cellular reception
Microwave ovens
SONAR
Light waves from the sun
Crossfit ropes

8. Waves Carry Energy
Medium: solid, liquid, or gas through which waves can travel
Waves carry energy through the medium….not the medium carries the wave energy
Waves do work on everything in its path….
Ex. Waves at the beach
List 3 other examples

9. Energy Transfer without a Medium
We are talking space
We cannot hear sound in space, because it needs a medium
Some waves travel MUCH faster in space
Examples
Light waves from the sun
List 2 more

10. Amplitude
Amplitude: maximum distance a wave vibrates from its rest position
Rest position means neutral
Larger the amplitude, the taller the wave is
Larger Amplitude means more energy placed in to the wave.

11. Wavelength
Wavelength: distance between 2 adjacent crests or compressions in a series of waves.
Can also be measured on the trough of a wave

12. Frequency Frequency: Number of waves produced over a given time period
Waves can be counted by the number of crests or troughs that pass a point over a certain amount of time.
Directly related to a wave’s wavelength
Expressed in hertz (Hz). 1 Hz = 1/s
Higher frequency = more energy
Longer wavelength = less energy

13. Types of Waves Transverse Wave
Particles in the medium wave vibrate up and down
Transverse means moving across
Ex…crossfit ropes
Longitudinal Waves
Particles in the medium vibrate back and forth
Push on a spring
Compression: portions are tighter than normal
Rarefaction: particles are less crowded together

14. www.phet.colorado.edu → Wave On A String
Just Google It
Take 5 minutes to mess around with the simulation
First 2 minutes on Manual
Second 2 minutes on Oscillate
Last minute → “you do you”
When you are done, you owe me an entry in your Science Thinking Log
Tell me about the simulation. What things did you decide to manipulate? What did you notice as you messed around with the simulation?