CCHS HOME OF THE PANTHERS
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Transcript

  • 1. ScienceData Collection
    For the Interactive White Board Using a Variety of Sensors and a
    Vernier Go! Link USB Computer Interface
  • 2. This session will show you how to connect a Go! Link or other computer interface to temperature, pressure, voltage, light , motion, and magnetic field sensors for data collection.
    Light
    Pressure
    Voltage
    Motion
    Stainless Steel Temperature
    Magnetic Field
    Temperature
  • 3. Data Collection Interfaces
    • The simplest and least expensive interface is a Vernier Go! Link ($60)
    • 4. It uses the included Logger-Lite Software.
    • 5. It will work with 36 sensors.
    • 6. Also available are Go! Temp ($39) and
    • 7. Go! Motion ($99)
    Vernier Go! Link USB Interface
    Go! Products Demo:
    http://www.vernier.com/go/index.html
  • 8. Using a Magnetic Field Sensor
    Which part of the magnet has the greatest magnetic field strength? What will happen to the strength of the magnetic field as the magnet is pulled away from the sensor?
  • 9.
    • What is the relationship between distance and magnetic field strength?
    • 10. Does this graph match your prediction?
    • 11. What other forces behave this way?
    Actual graph of Distance (cm) and Magnetic Field Strength (mT)
  • 12. A Light Sensor can be used to conduct a similar experiment to show that light intensity vs. distance follows the inverse square law.
    Light Intensity = 1/d2.If you could make a graph of distance from the center of earth vs. gravity it would also show an inverse square.
    This lab activity is found in :
    Physical Science with Vernier
    By Donald L. Volz and Sandy Sapatka
    The link below has directions for the lab activity. “How Bright is the Light?”
    http://www2.vernier.com/sample_labs/PSV-25-COMP-how_bright_is_light.pdf
  • 13. Use a gas pressure sensor and a syringe to see what happens to the pressure as you decrease the volume of air in the syringe.
    Try this experiment!
  • 14. Measuring the voltage of a Lemon Battery
    http://www2.vernier.com/sample_labs/PSV-33-COMP-lemon_juice.pdf
    This lab activity can be found in Physical Science with Vernier
    By Donald L. Volz and Sandy Sapatka
  • 15.
    • Move a magnet up and down inside a solenoid that is connected to a voltage sensor.
    • 16. Predict the graph that will result.
    • 17. What happens if you don’t move the magnet?
  • Graph of Voltage as a Magnet is Moved Inside a Solenoid
  • 18.
    • What will happen to the temperature of the water as it is heated for a long time on a hot plate?
    • 19. Draw your prediction on a graph.
  • Graph of Temperature as Water is heated and boils.
    • Was your prediction correct?
    • 20. Why does the graph stop rising at 100 degrees Celsius?
    This lab activity is found in Physical Science with VernierBy Donald L. Volz and Sandy Sapatka
    http://www2.vernier.com/sample_labs/PSV-02-COMP-boiling_temperature.pdf
  • 21. 6. Tell what you think is happening in this graph?
  • 22. The Motion Detector can be used with a LabPro which connects to the computer through a USB port.
    http://www2.vernier.com/sample_labs/PSV-36-COMP-velocity.pdf
  • 23. This graph using Logger Pro shows position/time for a battery powered car. The slope of the line is the velocity. Notice extra analysis features in Logger Pro.
    This graph shows velocity/time for the same toy car. The slope of the line is the acceleration.
  • 24. CCHS Science