Key Takeaways
Lesson Description
Key Takeaways
• Simple Harmonic Motion (SHM) is periodic motion caused by a restoring force.
• Springs obey Hooke's Law.
• Pendulums undergo SHM for small angles.
• Mechanical energy is conserved in ideal SHM.
• Maximum speed occurs at equilibrium.
• Maximum potential energy occurs at maximum displacement.
Must Know Equations
Hooke's Law:
Fs = −kx
Spring Period:
T = 2π√(m/k)
Pendulum Period:
T = 2π√(L/g)
Must Know Vocabulary
Simple Harmonic Motion
Amplitude
Period
Frequency
Restoring Force
Equilibrium Position
AP Exam Focus
• Explain energy changes during SHM.
• Compare spring motion and pendulum motion.
• Calculate period from system properties.