Spring
K: spring constant (N/m), s: displacement (m), ω: angular velocity (rad/s), T: time period, m: mass of the object, A: amplitude
Springs In Series
k: spring constant of the system, T: time period of the system
Springs in Parallel
Simple Pendulum
ω: angular velocity (rad/s), T: time period , αo: angle at amplitude, A: amplitude, l: length of the pendulum
Motion Equations
S: displacement, α: angle, v: velocity, T: strength on the rod
Energy
Ep: potential energy, Ek: kinetic energy, E: mechanical energy
Change Of Period Following The Change Of The Temperature
Α: coefficient of linear expansion of the rod
Change Of Period Following The Change Of The Height
h: height of the pendulum, R: earth’s radius
Pendulum
I: moment of inertia, ω: angular velocity, m: mass of bob, d: OG, T: time period
