manual levers
Manual levers are simple machines that help lift or move heavy objects with less effort. They consist of a rigid bar that pivots around a fixed point called a fulcrum. By applying force on one end of the lever, a person can lift a load on the other end, making tasks easier.
There are three types of manual levers, classified by the position of the fulcrum, load, and effort. These types are known as first-class, second-class, and third-class levers. Each type has different applications, from using a seesaw to lifting a wheelbarrow, demonstrating the versatility of this basic tool.