Frequency and Period
Learning Objectives
- Students will be able to define and measure frequency and period
- Students will be able to convert between frequency and period using f = 1/T
- Students will be able to identify frequency of oscillations in various systems
Core Concepts
- frequency
- period
- hertz
- cycles_per_second
- reciprocal_relationship
Formulas
$$f = \frac{1}{T}$$
Frequency equals inverse of period
$$T = \frac{1}{f}$$
Period equals inverse of frequency
Units
| hertz | Hz |
| second | s |
Interesting Fact
The human ear can hear frequencies from about 20 Hz (deep bass) to 20,000 Hz (high treble)
Key Scientist
Robert Hooke
Early work on vibrating strings and frequency
Modern Research
Frequency analysis (Fourier transforms) is central to signal processing, medical imaging, and telecommunications.
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