UNIT 03A - WATER WAVES & SOUND WAVES

LEARNING GOALS for PART A-- At the conclusion of this unit, students will be able to:

1. Characterize physical waves by frequency, wavelength, amplitude & Speed.

2. Apply these properties to water waves (ocean, tsunami & megatsunami), sound waves and earthquake waves (p, s and surface)

3. Describe how waves transmit energy and do NOT transmit matter

1st Unit Challenge: Why is it that a 90 foot ocean wave (measured from the front of the wave) breaks off shore and does NOT swamp the beach while a 15 foot tsunami wave (measure from the front of the wave) washes far inland causing much more damage?

2nd Unit Challenge: How is it possible to have an earthquake warning system?

UNIT 03B: ELECTRO-MAGNETIC WAVES

LEARNING GOALS -- At the conclusion of this part of the unit, students will be able to:

1. List the electromagnetic spectrum with a labeled diagram, showing how regions of the spectrum differ regarding wavelength, frequency, and energy

2. Explain how different forms of electromagnetic energy are used (for example: infrared in , microwaves for heating foods, X-rays for medical imaging).

3. Explain with words and diagrams (very generally) how a photon of light is created.

RUBRIC:

WAVE TEST RUBRIC

Learning Target:  I can characterize ocean waves by frequency, wavelength, amplitude.

TEST DESIGN RUBRIC

 Exceeding Standard Student can assess the impact of ocean wave frequency, wavelength and amplitude on a real world situation Meeting Standard Student can characterize ocean waves by frequency, wavelength and amplitude. Approaching Standard Student can accurately define the terms frequency, wavelength and amplitude. Below Standard Student can accurately define one or two of the following terms: frequency, wavelength and amplitude. Score 0.0 No effort or progress

STUDENT FRIENDLY RUBRIC

 Exceeding Standard We should be able to evaluate how changes in speed, frequency, amplitude and wavelength of ocean waves impact a real-world situation.  For example:  We should be able to predict which of the following storms will result in the most damage to a seawall on the Washington coast and justify our answer: Storm A:  Waves hit the seawall with an amplitude of 10 meters, a wavelength of 100 meters and a frequency of 1 wave per minute for 24 hours Storm B:  Waves hit the seawall with an amplitude of 5 meters, a wavelength of 20 meters and a frequency of 5 waves per minute for 24 hours Storm C:  Waves hit the seawall with an amplitude of 10 meters, a wavelength of 50 meters and a frequency of 2 waves per minute for 24 hours   Answer:  Waves with a higher amplitude will do more damage than waves with a smaller amplitude because they contain more water to smash against the seawall.  Waves with a higher frequency will do more damage than waves with a lower frequency because they smash against the seawall more often.  Different wavelengths have no effect on the seawall.  Storm C has the same high amplitude as storm A but storm C has a higher frequency than storm A.   Therefore storm C will do the most damage to the seawall. Explanation: The effect of wave amplitude, wavelength and frequency on the seawall is stated.  Note also the REASON for each statement is also included and is underlined in the example above.  Remember, don’t just state your answer, explain your answer! Meeting Standard We should be able to sketch and label an ocean wave at the end of this unit.  Each sketch should show the height of the wave (amplitude), the distance between the crest of one wave and the crest of the following wave (wavelength) and the number of waves occurring in some period of time (frequency) Approaching Standard To be able to demonstrate understanding of the frequency, wavelength and amplitude of an ocean wave, we must be able to define each of those terms: Amplitude is the height of a wave—usually measured in meters Frequency is the number of waves that pass a certain point in a certain amount of time. Wavelength is the distance between one wave crest and the following wave crest Below Standard Score 0.0