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Test #3 Terms
terms
18
Physics
Undergraduate 1
11/27/2006

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Term
work
Definition
force x distance
W = F X D
Term
power
Definition
work/time
(F x D)/T
P = IV
P = I^2R
Term
kinetic energy
Definition
1/2MV^2
Term
potential energy
Definition
(weight)(height)
WH or MgH
Term
conservation of energy
Definition
energy can neither be created or destroyed
Term
machine
Definition
a device that conserves energy or helps us do work
Term
mechanical advantage
Definition
MA = Force Out/Force In
Term
Electrostatics
Definition
study of electrical charges at rest
Term
coulomb (c)
Definition
SI unit of charge
Term
coulomb's law
Definition
F = K Q1Q2/d^2
Term
conductor
Definition
material that electrical charges flow through easily
Term
Insulator
Definition
material that resists the flow of electrical charges
Term
semiconductor
Definition
material that can act as a conductor or insulator under certain conditions
Term
Ohm's Law
Definition
V = IR
Term
series circuit
Definition
a circuit in which devices are wired in such a way that all devices see the same current
Term
parallel circuit
Definition
a circuit in which devices are wired in such a way that all devices see the same voltage
Term
electric current
Definition
the flow of electrons per second or coulombs per second measured in amperes
Term
Name 3 simple machines
Definition
lever
pulley
incline plane
wedge
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