# Shared Flashcard Set

## Details

Definations
Engineering
15
Other
Not Applicable
02/03/2004

Term
 machines
Definition
 an instrument that makes work/life easier- the work is the movement, not the actual assignment- anything that u are using something o help u or aid the process, that device is a machine, because it is making that work easier
Term
 Work Input
Definition
 Effort force (a put or a pull that resuls in movement usually
Term
 Work
Definition
 Force multiplied by distance
Term
 Unit of work
Definition
 Joules (N*M)
Term
 Unit of Force
Definition
 Newtons (spring scale)
Term
 Unit of distance
Definition
 meters (meter stick)
Term
 Work Output
Definition
 the resistance i feel when i try to lift something. u have to make ur work input greater than the work output to move something
Term
 Formula for work
Definition
 Work=Newtons x Meters
Term
 Efficiency
Definition
 the closer the work input is to work output, the more efficient the work is
Term
 Lubricant
Definition
 a liquid that helps cut back on friction
Term
Definition
 Mechanical Advantage- how much does the machine help me, how much force is gainedEX:- Electrical pencil sharpener has a greater Mechanical Advantage than the hand starpener- The machine that has more force, and is helping u more, has the greater advantage
Term
 energy,
Definition
 WORK=ENERGYAnytime that work is done, you are transferring the energy you have when you do work, onto the thing that you are doing work on
Term
 Potential energy,
Definition
 stored energy in an object. If Mrs. ridler benchpresses someone, then that person has been given stored energy
Term
 opposing Forces,
Definition
 the force that needs to be overcome to be able to do work
Term
 Kinetic Energy
Definition
 energy in motion.
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