2020-9-8 Simple machineS and force NGSSS: 1. SC.8.N.1.1: Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of various types, such as systematic observations or experiments, identify
2021-2-9 Simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to
Simple machines are devices that can be used to multiply or augment a force that we apply often at the expense of a distance through which we apply the force. The word for “machine” comes from the Greek word meaning “to help make things easier.” Levers, gears, pulleys, wedges, and screws are some examples of machines.
2020-7-26 some simple machines give a smaller force but with a bigger movement. This is the opposite to the see-saw and wheelbarrow, but again if you multiply the
2021-3-18 increasing the magnitude of a force, or. increasing the distance or speed of a force. Simple machines are devices with no, or very few, moving parts that make work easier. Many of today's complex
Simple machines were first discovered and described by Greek philosopher Archimedes. The Egyptians likely used the inclined plane to help build the pyramids. Using ramps would have made getting the large stones to the top much easier. Galileo was the first to work out a working mathematical theory on how simple machines worked.
A lever is a stick or plane that rotates on a central point called a fulcrum. See-saws, tongs, scissors and nail clippers are all examples of this simple machine. The lever and fulcrum let you exert greater force on objects than you could with your muscles alone;