PS-Electricity Flashcards
a circuit in which the switch is turned to the “on” position causing there to be no breaks anywhere in the wire.
Closed Circuit
The relationship among electrical force, charges, and distance: The electrical force between two charges varies directly as the product of the charges and inversely as the square of the distance between them.
Coulomb’s Law
a complete path through which electric charge can flow
Electric Circuit
a continuous flow of electric charge
Electric Current
a negatively charged subatomic particle that is found in the space outside the nucleus of an atom
Electron
The force pushing or pulling on stationary objects that have charge
Electrostatic Force or Coulomb’s Force
a push or a pull that acts on an object measured in newtons, causes acceleration.
Force
the transfer of charge without contact between materials
Induction
a field in a region of space that exerts magnetic forces; a field produced by magnets, by changing electric fields or by moving charges
Magnetic Field
a formula stating that the voltage and current of a circuit are directly related and the resistance and current are inversely related. I = V/R
Ohm’s Law
a circuit in which there is a break so that current cannot flow.
Open Circuit
the opposition to the flow of electric charges in a material
Resistance
a component that is used to control current in many circuits
Resistor
a device for turning electricity on and off in a circuit
Switch
potential difference, the difference in electrical potential energy between two places in an electric field.
Voltage
a coil of wire that’s acts as an electromagnet when current passes through it.
Solenoid
States that the voltage induced in a coil is directly proportional to the rate of change of the magnetic field through the coil.
Faraday’s Law of Induction
A rule that is a guide to finding the direction of magnetic force when a current is moving through a wire.
Right hand rule
A magnet created by electric current flowing in the wires; a simple electromagnet can be made by inserting an iron core into a wire coil that is conducting an electrical current
Electromagnet
A device that converts kinetic energy into electrical energy using the law of induction.
Generator
An electrical circuit that has only one pathway for electricity to travel
Series Circuit
An electrical circuit hat has multiple pathways for which electricity can travel.
Parallel Circuit
Metal is an example of this. Allows electricity to travel easily through this material.
Conductor
Rubber is an example of this. Electricity is slowed down by this material.
Insulator
