Motion and Force
Motion
Forces
Gravity, Friction, & Pressure
Work and energy
Machines
S = t/d
Speed = distance/time
Force Equation
F = ma
Pressure Equation
P = F/A
W = Fd
Work = force times distance
Momentum Equation
p = mv
momentum = mass times velocity
Force = mass times acceleration
Work Equaton
Pressure = force/ area
Speed Equation
Gravitational Potential Energy Equation
GPE = mgh
Gravitational Potential Energy = mass times gravitational acceleration times height
Kinetic Energy Equation
KE = 1/2mv2
Kinetic Energy = one half times mass times velocity squared
Mechanical Energy Equation
ME = PE + KE
Mechanical Energy = potential energy plus kinetic energy
Mechanical Advantage
Mechanical Advantage = output force over input force
Efficiency Equation
Efficiency (%) = output work/inputwork times 100
IMA = R in over R out
Ideal Mechanical Advantage = Radius of input over radius of output