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Definations
Engineering
15
Other
Not Applicable
02/03/2004

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Cards

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
Mechanical Advantage
Definition
Mechanical Advantage- how much does the machine help me, how much force is gained
EX:
- 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=ENERGY
Anytime 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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