psg1 094 ∿ Name:

☁ ________________________
☁ ________________________

Rope sine wave 7 cm 680 centimeters

  1. A wave was generated on a rope as seen in the diagram. There were 23 cycles in 5 seconds. Rope wave
    1. _________ How many waves are there from the first crest to the fourth crest - the 680 centimeters seen above?
    2. λ = _________ _________ What is the wavelength λ of ONE wave?
    3. a = _________ _________ What is the amplitude a?
    4. τ = _________ _________ What is the period τ of ONE wave?
    5. f = _________ _________ What is the frequency f?
    6. ѵwave = _________ _________ What is the wave velocity ѵwave?
  2. List the three processes that produce precipitation:
  3. Use the following chart to help explain the hazards associated with El Niño and when during an El Niño cycle those hazards occur for Micronesia.
    ENSO hazards
  4. Explain the meaning and the significance of Sea Surface Temperatures with respect to El Niño.
  5. Explain the meaning and the significance of Southern Oscillation index with respect to El Niño.
  6. A student gathered the data seen in the table below.
    Graphical analysis

    Sound speed data

    Time (s)Distance (m)
    0.0000
    0.6205.2
    0.9307.8
    1.2410.4
    1.5513
    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 was 349 m/s. Calculate the percentage error for this data.
    4. __________ __________ Based on the experimental data, how long for a sound to travel 615.6 meters?

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