AP Physics C: Mechanics
Advanced Placement Physics C: Mechanics with calculus-based physics principles.
Oscillations and Gravitation
The Rhythms of Nature
Many systems in physics oscillate—think springs, pendulums, or planetary orbits!
Simple Harmonic Motion (SHM)
Objects like springs and pendulums move in repetitive cycles described by SHM. Calculus allows us to model their position with sine and cosine functions.
- The restoring force is proportional to displacement: \( F = -kx \).
- The solution: \( x(t) = A \cos(\omega t + \phi) \).
Universal Gravitation
Newton's Law of Gravitation: \[ F = G\frac{m_1 m_2}{r^2} \] describes the attractive force between masses.
Orbits and Energy
Calculus is essential for analyzing elliptical orbits and gravitational potential energy.
Applications
Clocks, musical instruments, and satellites all rely on oscillatory motion and gravitation!
Examples
A mass on a spring moves back and forth in simple harmonic motion.
Satellites stay in orbit due to the balance of gravitational force and their velocity.
In a Nutshell
Oscillations and gravitation explain everything from swinging pendulums to the orbits of planets.