Which simple machine is used to lift heavy loads with less effort?

An inclined plane is a simple machine that allows a person to lift heavy loads with less effort by spreading the required work over a longer distance. This machine consists of a flat surface tilted at an angle to the horizontal, which reduces the amount of force needed to elevate an object.

When using an inclined plane, instead of lifting an object straight up, you push it up an incline. The mechanical advantage gained by this setup means that you can exert a smaller force over a greater distance to achieve the same elevation as you would by lifting the object directly. This effectively means you can manage heavier weights more easily.

While a wheel and axle, lever, and pulley can also be used to lift loads, they operate on different principles. A wheel and axle reduces friction and makes it easier to move objects rather than lifting them directly. A lever allows for lifting by applying a force at one end, but it requires a pivot point and is effective only when there’s sufficient length on either side of the fulcrum. A pulley helps to change the direction of the force applied for lifting, but typically involves a system of multiple ropes to gain a mechanical advantage.

Thus, the inclined plane is particularly notable for its straightforward method of reducing the amount of force needed to lift