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. a) Calculate the wavelength of any photon of light given the frequency of that photon using the relationship:

    velocity = (wavelength)(frequency)

    c=λυ

    b) Calculate the frequency of any photon of light given the wavelength of that photon of light using the relationship:

    velocity = (wavelength)(frequency)

    c=λυ

    c) Calculate the energy of any photon light using E = hυ

  3. Explain how different forms of electromagnetic energy are created and experienced by human beings
  4. Explain with words and diagrams (very generally) how a photon of light is created (including x-ray and gamma ray light)
  5. Demonstrate understanding of the properties of:

    IR Light as shown in class

    microwave radiation relating to the BIG BANG

    size, use and administration of the RADIO spectrum in the US

5. Sketch an electromagnetic wave clearly showing the separate E and M components and their orientation to the direction the wave is travelling.

VOCABULARY:

  • propagation: How light waves move
  • hertz (Hz): a measure of wave frequency in waves/second
  • electromagnetic waves (light waves from radio - gamma)
  • quantum jump
  • energy levels
  • excited (electron) = ("electrons 'jolted' into a higher energy level")
  • rest state (electron) = ("electrons existing on the lowest energy level"

 

STUDY GUIDES & ADDITIONAL PRACTICE: