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1. Power and Work: What units are used to measure power? How would you calculate work...

1. Power and Work: What units are used to measure power? How would you calculate work
from a graph of power vs. time?

2. Energy and Capacitance: How much energy can a capacitor C store at a given voltage? Call
this quantity E. How much energy (in terms of E) can the capacitor store if the voltage is
doubled?

3. Assume you have just used the energy stored in a capacitor to raise up a mass on a string using
an electric motor fitted with a pulley (as occurs in this lab activity). Find a mathematical
relationship showing how the displacement of the mass should relate to initial energy in the
capacitor.

4. Linear Fits: Take (for example) the following expression: b/c = Xe^Y


What curve would you obtain if you plotted b/c versus e^Y ? What would you obtain if you
plotted Xe^Y versus 1/c?

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