Machines
What is machines?
A machine is any physical system with ordered structural and functional properties. It may represent human-made or naturally occurring device molecular machine that uses power to apply forces and control movement to perform an action.
Why we need machines?
Simply put, machines have integrated themselves into our daily lives and now play a prominent role in our society. We have almost completely substituted all previous forms of communication, transportation, and other aspects of our society with the creation of newer, more industrial methods and apparatuses.
What are the two types of machines?
Machines come in two kinds — Simple Machines and Complex Machines. A simple machine is a tool, device, or object with few moving parts that help us do work. Simple machines have been in use for a very long time. Early humans used simple machines to push, pull, lift, divide, and crush things.
What is complex machines?
Complex machines are also called compound machines. Two or more simple machines work together to form a complex machine. Compound machines can do more difficult jobs than simple machines alone. Examples of complex machines are bicycle, wheel barrow, crane, car jack, lawn mover etc.
What is simple machines?
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. ... The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.
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