# data[].attributes.headline
Voltage-an electromotive force or potential difference expressed in volts.

# data[].attributes.subject
Voltage-an electromotive force or potential difference expressed in volts.

# data[].attributes.headline
Valence Electrons-an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.

# data[].attributes.subject
Valence Electrons-an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.

# data[].attributes.headline
Static Electricity-a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.

# data[].attributes.subject
Static Electricity-a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.

# data[].attributes.headline
Semiconductors-a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.

# data[].attributes.subject
Semiconductors-a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.

# data[].attributes.headline
Resistance-the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.

# data[].attributes.subject
Resistance-the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.

# data[].attributes.headline
Proton-a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

# data[].attributes.subject
Proton-a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

# data[].attributes.headline
Nucleus-the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.

# data[].attributes.subject
Nucleus-the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.

# data[].attributes.headline
Neutron-a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

# data[].attributes.subject
Neutron-a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

# data[].attributes.headline
Multimeter-an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.

# data[].attributes.subject
Multimeter-an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.

# data[].attributes.headline
Motor-a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.

# data[].attributes.subject
Motor-a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.

# data[].attributes.headline
Molecule-a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

# data[].attributes.subject
Molecule-a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

# data[].attributes.headline
Matter-physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

# data[].attributes.subject
Matter-physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

# data[].attributes.headline
Magnet-a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field.

# data[].attributes.subject
Magnet-a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field.

# data[].attributes.headline
LED-a light-emitting diode (a semiconductor diode which glows when a voltage is applied).

# data[].attributes.subject
LED-a light-emitting diode (a semiconductor diode which glows when a voltage is applied).

# data[].attributes.headline
Insulator-a block of material, typically glass or ceramic, enclosing a wire carrying an electric current where it crosses a support.

# data[].attributes.subject
Insulator-a block of material, typically glass or ceramic, enclosing a wire carrying an electric current where it crosses a support.

# data[].attributes.headline
Generator-a dynamo or similar machine for converting mechanical energy into electricity.

# data[].attributes.subject
Generator-a dynamo or similar machine for converting mechanical energy into electricity.

# data[].attributes.headline
Field Magnet-a magnet for producing a magnetic field, as in a particle accelerator or an electric motor.

# data[].attributes.subject
Field Magnet-a magnet for producing a magnetic field, as in a particle accelerator or an electric motor.

# data[].attributes.headline
Element-a part in an electric teapot, heater, or stove that contains a wire through which an electric current is passed to provide heat.

# data[].attributes.subject
Element-a part in an electric teapot, heater, or stove that contains a wire through which an electric current is passed to provide heat.

# data[].attributes.headline
Electron Theory-The electron theory, which is now accepted and used to explain the behavior of electricity, states that electric current consists of electron flow and can be defined as a moving charge. Electricity can be defined, then, as charged matter.

# data[].attributes.subject
Electron Theory-The electron theory, which is now accepted and used to explain the behavior of electricity, states that electric current consists of electron flow and can be defined as a moving charge. Electricity can be defined, then, as charged matter.

# data[].attributes.headline
Electron-a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

# data[].attributes.subject
Electron-a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

# data[].attributes.headline
Electromagnet-a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

# data[].attributes.subject
Electromagnet-a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

# data[].attributes.headline
Direct Current-an electric current flowing in one direction only.

# data[].attributes.subject
Direct Current-an electric current flowing in one direction only.

# data[].attributes.headline
Current-a flow of electricity which results from the ordered directional movement of electrically charged particles.

# data[].attributes.subject
Current-a flow of electricity which results from the ordered directional movement of electrically charged particles.

# data[].attributes.headline
Coulomb-the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.

# data[].attributes.subject
Coulomb-the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.

# data[].attributes.headline
Continuity-the unbroken and consistent existence or operation of something over a period of time.

# data[].attributes.subject
Continuity-the unbroken and consistent existence or operation of something over a period of time.

# data[].attributes.headline
Conductor-a material or device that conducts or transmits heat, electricity, or sound, especially when regarded in terms of its capacity to do this.

# data[].attributes.subject
Conductor-a material or device that conducts or transmits heat, electricity, or sound, especially when regarded in terms of its capacity to do this.

# data[].attributes.headline
Commutator-an attachment, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

# data[].attributes.subject
Commutator-an attachment, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.

# data[].attributes.headline
Circuit-a roughly circular line, route, or movement that starts and finishes at the same place.

# data[].attributes.subject
Circuit-a roughly circular line, route, or movement that starts and finishes at the same place.

# data[].attributes.headline
Cathode-the negatively charged electrode by which electrons enter an electrical device.

# data[].attributes.subject
Cathode-the negatively charged electrode by which electrons enter an electrical device.

# data[].attributes.headline
Battery-a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.

# data[].attributes.subject
Battery-a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.

# data[].attributes.headline
Atomic Number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

# data[].attributes.subject
Atomic Number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

# data[].attributes.headline
Atom-the basic unit of a chemical element.

# data[].attributes.subject
Atom-the basic unit of a chemical element.

# data[].attributes.headline
Armature-the rotating coil or coils of a dynamo or electric motor.

# data[].attributes.subject
Armature-the rotating coil or coils of a dynamo or electric motor.

# data[].attributes.headline
Anode-the positively charged electrode by which the electrons leave a device.

# data[].attributes.subject
Anode-the positively charged electrode by which the electrons leave a device.

# data[].attributes.headline
Ampere-a unit of electric current equal to a flow of one coulomb per second.

# data[].attributes.subject
Ampere-a unit of electric current equal to a flow of one coulomb per second.