STATE VARIABLE Electric Field Strength E STATE VARIABLE

STATE VARIABLE Electric Field Strength E

STATE VARIABLE Potential Difference V

STATE VARIABLE Current I

STATE VARIABLE Cross-sectional area of a wire A

STATE VARIABLE Length of a conductor L

STATE VARIABLE Resistivity ρ

STATE VARIABLE Electrostatic constant k

STATE VARIABLE Electrical energy W

STATE VARIABLE Power P

STATE VARIABLE charge q

STATE VARIABLE time t

STATE VARIABLE Electrostatic force Fe

STATE THE UNIT Current Amperes or C/s

STATE THE UNIT Potential difference V or J/C

STATE THE UNIT charge C or e

STATE THE UNIT Power Watts (W) or J/s

STATE THE UNIT Resistance Ω or ohms

STATE THE UNIT Resistivity Ωm or ohm-meter

COMPLETE THE TRIANGLE q I t

COMPLETE THE TRIANGLE V I R

COMPLETE THE TRIANGLE W P t

COMPLETE THE TRIANGLE P V I

COMPLETE THE TRIANGLE W V q

Equations to memorize Equation for area of a sloped (triangle) graph Area = 1/2 bh or [(x-value)(y-value)]/2

Equations to memorize Equation for area of a straight line (rectangular) graph Area = bh or (x-value)(y-value)

Name the type of relationship represented by the graph Inverse or inverse square “y” does the opposite of “x” “y” does the opposite square of “x”

Name the type of relationship represented by the graph Direct “y” does the same thing as “x”

Name the type of relationship represented by the graph Direct Square “y” does the same thing as “x squared”

Vocabulary or Concept The area where an object feels the force of another object with the same fundamental force carrier Field

Vocabulary or Concept The process by which the electrons in an object are redistributed due to attraction or repulsion when brought near a charged object. Induction (always causes attraction because of temporary polarity)

Vocabulary or Concept The process by which two objects obtain the same charge due to contact. Conduction (always like charge)

Vocabulary or Concept The rate of energy or work Power

Vocabulary or Concept Amount of charge that flows per second Current

Vocabulary or Concept The amount of energy (or work done) on each charge Potential difference

Vocabulary or Concept A circuit in which electrons have a choice of paths Parallel Circuit

Vocabulary or Concept A circuit in which electrons all follow the same path Series circuit

Vocabulary or Concept A device to measure current Ammeter

Vocabulary or Concept A device to measure potential difference voltmeter

Vocabulary or Concept The difficulty and electron has in completing a circuit Resistance

Vocabulary or Concept Force that acts between an electron and a proton Electromagnetic force

Vocabulary or Concept Measure of energy when working with small charges such as an electron or other elementary charge Electronvolt e. V

Vocabulary or Concept The base unit for electric charge of a particle. Coulomb

Vocabulary or Concept The charge in coulombs of an electron or a proton. 1. 6 x 10 -19 C

Vocabulary or Concept The term for the smallest possible quantity of charge on a particle Elementary charge

Vocabulary or Concept Field lines are represented as arrows that show what a Positive test particle would do if placed in the field (always move away from + and toward -)

Vocabulary or Concept Magnetic field lines align with the field with arrows that point in the direction of The north end of a compass needle (ie away from north and toward south)

Vocabulary or Concept In order for a charged particle to create a magnetic field, the particle must be moving

Vocabulary or Concept In a parallel circuit, the equivalent resistance must be Less than the value of the smallest resistor

State the variable for the alternate unit Volt-Coulomb W=Vq so Work or energy (alternate for a Joule)

State the variable for the alternate unit Volt/Amp R=V/I so Resistance (alternate for an ohm)

State the variable for the alternate unit Coulomb/second I=q/t so Current (alternate for and ampere)

State the variable for the alternate unit Amp-Ohm V=IR so Potential Difference

State the variable for the alternate unit Joule/second P=W/t so a Watt

State the variable for the alternate unit Newton/Coulomb E=Fe/q so Electric Field Strength

State the variable for the alternate unit Joule/coulomb V=W/q so potential difference

State the type of relationship Direct, Direct Square, Inverse Square Power vs Potential Difference for a fixed Current P=VI so direct

State the type of relationship Direct, Direct Square, Inverse Square Power vs Potential Difference for a fixed Resistance (obey’s Ohm’s Law) P=V 2/R so direct square

State the type of relationship Direct, Direct Square, Inverse Square Power vs Resistance for a fixed Current P=I 2 R so direct

State the type of relationship Direct, Direct Square, Inverse Square Current vs Resistance for a fixed potential difference I=V/R so inverse

State the type of relationship Direct, Direct Square, Inverse Square Resistance vs Length for a fixed material and cross sectional area. R=ρL/A so direct

State the type of relationship Direct, Direct Square, Inverse Square Resistance vs Cross sectional area for a fixed material and Length R=ρL/A so inverse

State the type of relationship Direct, Direct Square, Inverse Square Resistance vs radius for a fixed material and length R=ρL/(πr 2) so inverse square

State the type of relationship Direct, Direct Square, Inverse Square Potential difference versus resistance for a fixed current V=IR so direct

Summarize the skill To convert from elementary charges (electrons or protons) to coulombs. Multiply by 1. 6 x 10 -19 C

State the type of relationship Direct, Direct Square, Inverse Square To convert from charge in coulombs to elementary charge Divide by 1. 6 x 10 -19 C

State the type of relationship Direct, Direct Square, Inverse Square To convert from energy in joules to energy in electron volts Divide by 1. 6 x 10 -19 J

State the type of relationship Direct, Direct Square, Inverse Square To convert from energy in electron volts to energy in joules multiply by 1. 6 x 10 -19 J

State the type of relationship Direct, Direct Square, Inverse Square To determine if a charge in coulombs is possible Eliminate any value less than 1. 6 x 10 -19 C and for other values divide by 1. 6 x 10 -19 and eliminate any answers that are not whole #’s