1. ☁ ________________________
  2. ☁ ________________________
  3. ☁ ________________________
  4. A RipStik was ridden across three sheets of poster pad as seen in the diagram below. Each sheet was 65 cm long, the three sheets totaled 195 cm.
    Swizzle sine wave 7 cm 0 cm 0 seconds 65 cm 0.5 seconds 130 cm 1.0 seconds 195 cm 1.5 sec
    frequency f = 1 ÷ (period T )
    velocity ѵ = wavelength λ * frequency f
    1. On the diagram above, label a crest.
    2. On the diagram above, label a trough.
    3. __________ How many wavelengths can be seen on the three sheets of paper?
    4. λ = _________ _________ What is the wavelength λ of ONE wave?
    5. a = _________ _________ What is the amplitude a for the wave?
    6. τ = _________ _________ What is the period τ of ONE wave?
    7. f = _________ _________ What is the frequency f?
    8. ѵwave = _________ _________ What is the wave velocity ѵwave?
  5. What types of weather data does the radiosonde attached to the weather balloon measure and report back to the weather service?
  6. What are some of the public services that the weather station provides?
  7. A typical METAR report is: METAR PTTP 210850Z 14006KT 15SM SCT018 OVC300 26/24 A2988. What are some of the types of information provided by the METAR report?
  8. A student gathered the data seen in the table below.
    Graphical analysis

    Sound speed data

    Time (s)Distance (m)
    0.0000
    0.4140
    0.8280
    1.2420
    1.4490
    background rectangle major grid lines axes text layers Speed of Sound Time (s) Distance (m) x-axis labels 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 y-axis labels 0 50 100 150 200 250 300 350 400 450 500 520 540
    1. Plot the data on the graph.
    2. __________ __________ Calculate the experimental speed of sound based on the data. Include the units with your answer.
    3. __________ __________ Based on the experimental data, how far away is lightning for which the thunder is heard 5 seconds after the lightning?
  9. Kestrels (a type of hawk related to falcons) use light to determine if a field has voles (related to mice) in a field. What is the name of the type of light the kestrel is using and how are they using that light?
  10. Explain why a cup of coffee is bright white in an image taken with an infra-red camera.
  11. List the three primary colors of light:
  12. List the three secondary colors of light: