Electronic Principles
A farad is defined as the amount of capacitance necessary for:

causing an ac phase shift greater than 90 degree
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
storing 1 V for 1 second
None of these
dissipating 1 W of power

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Electronic Principles
A high-pass filter:

has no effect on ac signals
passes higher-frequency signals and reduces lower-frequency signals
None of these
increases the level of all frequencies by a significant amount
passes lower-frequency signals and reduces higher-frequency signals

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