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Motion and Forces (Work and Energy (work = force * distance, GPE = mass …
Motion and Forces
Work and Energy
work = force * distance
GPE = mass
gravitational acceleration
height
Kinetic Energy = mass * velocity^2 / 2
Mechanical Energy = Potential Energy + Kinetic Energy
Power from work = work / time
Power from Energy = Energy / time
Machines
Mechanical Advantage = Output force / Input force
Efficiency (%) = Output work / Input work * 100
Ideal Mechanical Advantage = length of incline / height of incline
Ideal Mechanical Advantage = Radius of input / Radius of output
Motion Equations
Speed = distance / time
acceleration = final velocity - initial velocity / time
final velocity = distance / average time
Forces
Force = mass * acceleration
momentum = mass * velocity
Gravity, Friction, and Pressure
pressure = force / area