The pivot point on a lever
Fulcrum
Lever
Pulley
Wedge
Screw
Wheel & Axel
Inclined Plane
Mechanical System
Efficiency
The pivot point on a lever is called the fulcrum. It is the point around which the lever rotates or moves.
A lever is a simple machine that consists of a rigid bar or beam that is supported at a fulcrum. It is used to amplify the force applied to an object or to change the direction of a force.
A pulley is a simple machine that is used to lift or move heavy objects by using a rope or cable wound around a wheel. It allows for the use of less force to lift the object.
A wedge is a simple machine that is used to split, cut, or hold things together. It has a triangular shape and is thick at one end and thin at the other.
A screw is a simple machine that consists of an inclined plane wrapped around a cylindrical post. It is used to hold objects together or to lift or lower objects.
A wheel and axle is a simple machine that consists of a wheel attached to a cylindrical shaft or axle. It is used to reduce friction and to transmit power or motion.
An inclined plane is a simple machine that consists of a flat surface with one end higher than the other. It is used to raise or lower objects or to move them along a sloping surface.
A mechanical system is a collection of interconnected parts or components that work together to perform a specific function or task.
Efficiency is a measure of how well a machine converts input energy into useful work output. It is usually expressed as a percentage and is calculated by dividing the useful work output by the total input energy and multiplying by 100.