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Simple machines
11 pages
Publié par
mariajose
Copyright :
Tous droits réservés
Simple Machines
Definitions to know:
Work – done when an applied force causes an object to move in the direction of the
force
Energy – ability to cause change; can change the speed, direction, shape, or
temperature of an object
Load...
[Plus]
Simple Machines
Definitions to know:
Work – done when an applied force causes an object to move in the direction of the
force
Energy – ability to cause change; can change the speed, direction, shape, or
temperature of an object
Load – the weight being lifted by the simple machine
Effort – effort is the force placed on the simple machine to move the load.
Also called
applied force or input force
What are simple machines?
Simple machines are tools that make work easier
They have few or no moving parts
These machines use energy to work
Do work with one movement
Make our work easier by letting us use less mechanical effort to move an
object
Simple machines make work easier for us by allowing us to push or pull
over increased distances
Use the idea of spreading force over distance: if you push further, you can
use less force
You are doing the same amount of work — it just seems easier
You move an object a greater distance to accomplish the same
amount of work.
There s a trade–off of energ
[Moins]
Tags
advantage,
amount,
applied,
direction,
distance,
easier,
effort,
force,
greater,
load,
machines,
move,
object,
push,
simple,
trade,
work
