Read this lesson as text

Tide Predictor

Trigonometry · Axiom Academy

REAL WORLD Tide Predictor with Sine Functions Model ocean tides using transformed sine functions and discover how celestial mechanics creates predictable patterns! Every day, oceans rise and fall in a predictable dance controlled by the gravitational pull of the Moon and Sun. Let's watch a typical day at the coast! Notice the smooth, periodic pattern ? This looks like a sine wave! Ocean tides can be modeled using a transformed sine function . Here's the general form: Height of the tide Difference between high and low tide Time between tides Controls wave frequency When high tide occurs Horizontal translation Average sea level Midline of the wave Here's real tide data from a coastal station (blue dots). Adjust the sine function parameters to match the actual tides as closely as possible! You've successfully modeled the tides with a sine function! But why do tides follow this pattern? The Moon and Sun exert gravitational forces on Earth's oceans Most coastal areas have two high tides per day. Why? Tides Follow Sine Patterns: Ocean tides can be accurately modeled using transformed sine functions Four Key Parameters: Amplitude (A), Period (2π/B), Phase shift (C), and Vertical shift (D) define the tide model Gravitational Forces: The Moon's gravity creates two tidal bulges on opposite sides of Earth ⏰ Predictable Cycles: Period ≈ 12.42 hours (half a lunar day) for semidiurnal tides From Ancient Navigation to Modern Science

This is the written version of the interactive lesson above. See the full Trigonometry course.