FormulaGravitational force (mass, distance) $$ F_{\text g} ~=~ G \, \frac{\class{brown}{m_1} \, \class{brown}{m_2}}{r^2} $$
FormulaUniformly accelerated motion (distance, time, acceleration) $$ s ~=~ \frac{1}{2} \, a \, t^2 $$
FormulaAcoustic Doppler Effect (frequency, velocity) $$ f ~=~ f_{\text s} \, \left( \frac{c ~\pm~ v}{c ~\mp~ v_{\text s}} \right) $$
LessonLevel 2 (suitable for students)Interference and How The Path Difference Causes It Learn how constructive and destructive interference results from the path difference and how to mathematically add two sine waves.
FormulaRotational energy (moment of inertia, angular velocity) $$ W_{\text{rot}} ~=~ \frac{1}{2} \, I \, \class{red}{\omega}^2 $$
