Review springs and trigonometry concepts essential for understanding simple harmonic motion in this physics lesson. Explore Hooke's Law, elastic potential energy, and conservation of mechanical energy as they relate to spring systems. Examine how force, acceleration, potential energy, kinetic energy, and velocity change at different points in a spring's oscillation. Delve into sine and cosine functions, comparing their amplitudes and periods to model position, velocity, and acceleration in simple harmonic motion. Gain a solid foundation for upcoming lessons on oscillatory systems and wave mechanics.