# High School Physics/Index of physics equations

Index of useful physics equations

## Classical mechanics (movement)

General Form: $A=B\times C$ use the "algebra pyramid" to rearrange the equation respectively

• $force=mass\times acceleration$ • $weight=mass\times acceleration_{duetogravity}$ • $density={\frac {mass}{volume}}$ • $acceleration={\frac {v_{f}-v_{i}}{t_{f}-t_{i}}}$ • $velocity={\frac {distance}{time}}$ • $distance={\frac {acceleration_{duetogravity}\times time^{2}}{2}}$ (for something that is falling. usually the y component)
• $displacement=Originalvelocity\times time+{\frac {1}{2}}acceleration\times (time^{2})$ ## Kinetic and potential energy

• $kineticenergy={\frac {mass\times velocity^{2}}{2}}$ • $potentialenergy=mass\times acceleration_{duetogravity}\times h$ • $momentum=mass\times velocity$ • $I=F\times T$ ## Waves

Speed = Distance/Time s = d/t Velocity = Frequency * Lambda v=f*ʎ

## Electromagnetics (electricity)

• $power=voltage\times current$ • $current={\frac {voltage}{resistance}}$ 