Simple Machine
A basic mechanical device that changes the direction or magnitude of an applied force.
Governing formula
MA = F_out / F_in
SI unit
Dimensionless
In depth
The six classical simple machines are lever, wheel and axle, pulley, inclined plane, wedge, and screw.
Examples in the real world
Using a pulley to hoist heavy loads or an inclined plane to slide heavy crates up a ramp.