What are the orders of mechanical advantage – levers?
Order is another term for degree in levers. 1st order: The fulcrum is between the load and the force. This is the most commonly used form of lever. The mechanical advantage is determined by the length of the lever on the force side divided by the length on the load side 2nd Order: The load is between the fulcrum and the force. A wheelbarrow is an example of this type. The mechanical advantage determined by the distance from the load to the force divided by the distance from the load to the fulcrum. 3rd Order : The force is between the fulcrum and the load. This type always has a negative or no, mechanical advantage. The disadvantage is determined by the distance from the force to the fulcrum divided by the distance of the load to the fulcrum.
