## Term 3 Flashcards

##### Created by:

mattf  on August 30, 2010

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# Term 3 Flashcards

 Batterya device that converts chemical energy to electrical energy
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#### Definitions

Battery a device that converts chemical energy to electrical energy
Ohm's Law the relationship which states: the resistance equals the voltage drop divided by the current
Resistance an electrical device that resists the flow of electrical current
Voltage The potential difference between two points; measured in volts
A measure of the electric potential energy per charge.
Current A flow of electricity through a conductor
A measure of the charge past a point in a given time.
Resistivity Intrinsic property of a conductor denoted by ρ used to measure its resistance in the equation R = ρ L/A. L = length of the conductor, A = cross-sectional area.
Conductivity the ability of a material to allow either heat or electricity to flow through it
Series connection of components in such a manner that current flows first through one and then through the other
Parallel circuit in which components are on their own pathways
Thermal Conductivity the ability of an object to transfer heat
Thermal expansion the expansion of matter when it is heated
Celcius K - 273
Pressure the force applied to a unit area of surface, measured in pascals
Volume The amount of 3-dimensional space occupied by an object
Ideal Gas Law law that states the mathematical relationship of pressure (P), volume (V), temperature (T), the gas constant (R), and the number of moles of a gas (n); PV=nRT.
Charles' Law the physical law that the volume of a fixed mass of gas held at a constant pressure varies directly with the absolute temperature V1/T1= V2/T2
Boyles Law The relationship between the pressure and volume of a gas at constant temperature; when volume increase, pressure decreases.P1V1= P2V2
Power the rate at which work is done
Combined Gas Law P1V1/T1=P2V2/T2
Specific heat The amount of heat required to raise the temperature of one kilogram of a substance by one Kelvin.
Latent Heat The heat energy needed per unit mass to change the state (phase) of a substance.
kelvin SI unit for temperature

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