124 test three • Name:

Wave background rectangle major grid lines axes x-axis and y-axis a path data points as circles data points as triangles vertical amplitude arrow horizontal wavelength arrow text layers Correctly label the features on the wave below. distance (cm) displacement (cm) 4. ______________ 5. ______________ y-axis labels -20 -16 -12 -8 -4 0.0 4 8 12 16 20 x-axis labels 0 12 24 36 48

  1. _______________ What is the wavelength in centimeters for the above wave?
  2. _______________ What is the amplitude in centimeters for the above wave?

Wave background rectangle major grid lines axes x-axis and y-axis a path a path text layers Wave distance (cm) displacement (cm) Wave A Wave B y-axis labels −10 −5 0 5 10 −10 −5 0 5 10 x-axis labels 0 4 8 12 16 20 24 28 32 36 40

  1. _______________ Which wave above has the longer wavelength?
  2. _______________ Which wave above has the larger amplitude?
  3. ____________________ A clapper stays in synch with the echo of the clapping. During ten seconds of clapping there were 40 claps. The echo flight distance out to the building and back was 87 meters. Determine the speed of sound based on this data.
  4. On the diagram below, draw the path of a light ray from the penny to the eye.
    Image depth versus object depth measurement diagram for physical science laboratory Eye eye water objects (coin?) container air water penny opaque container
  5. ____________________ The experimental data obtained during laboratory nine measured the speed of sound to be 363 m/s. The speed of sound predicted by theory is 350 m/s at 28° Celsius, 80% humidity, and pressure of 1002 mPA. What is the percent difference between the experimentally measured value and the value predicted by theory? 1
  6. As accurately as you can recall, what is the latitude and longitude of the college?

    Latitude:

    Longitude:
  7. ____________________ Lightning is the result of a high voltage electric current being passed through the air. Will lightning generate a continuous or discrete spectrum?
  8. ____________________ A Haier microwave oven consumes 1250 Watts at 120 volts. Use the mathematical relationship power = current × voltage to calculate current i in amperes used by the microwave.
  9. ____________________ A Haier microwave oven consumes 1250 Watts at 120 volts. Use Ohm's law and the result above, voltage = current × resistance to calculate the resistance R of the microwave in Ohms (Ω)?
  10. Presbyopia occurs naturally with age, with first onset typically between 40 and 50 years old. What can a person do to remedy (fix) presbyopia?