084 094 • Name:

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  1. Concepts from videos: What is precipitation?
  2. Explain what happens to sea surface temperatures in the western Pacific during an El Niño.
  3. Explain what happens to sea surface temperatures in the western Pacific during an La Niña.
  4. What is the difference between weather and climate?
  5. Concepts from presentations: Give a brief definition of the term El Niño
  6. Give a brief definition of the term La Niña
  7. Give a brief definition of the term ENSO-neutral.
  8. Explain the meaning and the significance of SOI with respect to El Niño. Which values indicate El Niño, which indicate La Niña, which indicate neutral conditions?
  9. Give a brief overview of the sea level trends over the past four years and the current sea level situation.
  10. A wave was inscribed on poster paper by a RipStik. The RipStik was timed and took 0.75 seconds to go from 0 cm to 162 cm.
    Based on Millinocket swizzle sine wave 20 0 cm 54 cm 108 cm 162 cm
    1. On the diagram above, label a crest.
    2. On the diagram above, label a trough.
    3. λ = _________ _________ What is the wavelength λ of ONE wave?
    4. a = _________ _________ What is the amplitude a?
    5. τ = _________ _________ What is the period τ of ONE wave?
    6. f = _________ _________ What is the frequency f?
    7. ѵwave = _________ _________ What is the wave velocity ѵwave?
  11. A student gathered the data seen in the table below.
    Graphical analysis

    Sound speed data

    Time (s)Distance (m)
    0.0000
    0.4134
    0.8268
    1.2402
    1.6528
    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. __________ __________ The published value for the speed of sound that day was 348 m/s. Calculate the raw error for this data.
    4. __________The published value for the speed of sound that day was 348 m/s. Calculate the percentage error for this data.
  12. __________ __________ Using a a speed of sound of 340 m/s, if thunder follows lighting by 10 seconds, how far away is the lighting in meters?

error = experimental value − expected value
percent error= (experimental value−expected value) (expected value)
period τ = 1 ÷ (period τ)
frequency f = 1 ÷ (frequency f )
velocity ѵ = wavelength λ * frequency f