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Science Mind Map: Mechanical Systems
Descripción
Mapa Mental sobre Science Mind Map: Mechanical Systems, creado por sarah rane el 12/01/2014.
Mapa Mental por
sarah rane
, actualizado hace más de 1 año
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Creado por
sarah rane
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Resumen del Recurso
Science Mind Map: Mechanical Systems
1st Class Lever
The fulcrum is between the input and output force, output force is always opposite of input force
Input force is the force applied to a machine
Output force is the force that the machine applies
Examples are See-Saws or plyers that remove lids from cans
2nd Class Lever
The input and output forces are in same direction but the output force is between the fulcrum and input force
A fulcrum is the point on the lever that supports it
A lever is a rigid bar that is supported at one point
Example is a bottle opener
3rd Class Lever
Input and output forces are in same direction but the input force is between the fulcrum and output force
Examples are swinging a baseball bat or a rake
Force
Force is a push or pull that acts on an object
Two types of force which are Contact forces and Action-at-a-distance force
Action-at-a-distance forces can push or pull an object without touching it, most common is gravity
Gravity is the attraction between two objects due to their mass
Machines
Machines are any mechanical system that reduces the amount of force required to accomplish work
Two types of machines: Complex and Simple
Complex Machines are machines that are made up of more than two or more machines
Examples are bicycles and scissors
Simple machines are any of the basic mechanical devices that apply forces
Examples are pulleys, which conveys more distance in a short time or wheel and axles, which reduce force by moving heavier objects faster and quickly
Work is the amount of effort spent when a force causes an object to move a distance
Energy is defines as the ability to do work
Types of energy is kinetic energy and potential energy
Kinetic energy is when an object moves
Potential energy is energy stored in an object
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