Name:_______________________________ 4-digit Code Number:_______________________________

- What is the definition of the north pole of a magnet? Bear in mind that you can not see little arrows on the magnetic field lines; they are a mathematical construct.
- In the model of the Earth's magnetic field, a giant bar magnet sits inside the Earth. Which end of the bar magnet is near the Earth's geographic North Pole? Explain your reasoning.
- Why was it stipulated that the amplitude of the magnet's oscillation
be kept small (less than 20
^{o})? - Write the equation that you will be graphing in slope-intercept form and identify the ordinate, abscissa, slope, and y-intercept.
- What parameters do you need to calculate "C"?
- "I" is the moment of inertia of what object? What parameters do you need to calculate "I"?
- Why is it necessary to find the slope of your graph before you can determine the Earth's magnetic field?

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