How can a wheel and axle gain force?

A wheel and axle can gain force through the principle of mechanical advantage. When a smaller wheel (the axle) is turned, it requires less force to rotate compared to a larger wheel, allowing a greater force to be applied at the rim of the larger wheel. This system effectively amplifies the force applied, enabling tasks like lifting heavy objects or moving them with less effort. The ratio of the diameters of the wheel and axle determines the degree of force amplification.