| A | B |
|---|
| Matter | Is anything that has mass and occupies space |
| Conventional current flow | Is current flow from positive to negative |
| Liquid | is matter that has a definite volume but not a definite shape |
| Gas | Is matter that has no definite volume or definite shape |
| Conductor | Is a material that has low electrical resistance and permits electrons to move through it easily |
| Insulator | Is a material that has a very high resistance to the flow of electrons |
| Semiconductor | Is a material that exhibits electrical conductivity between that of a conductor (high conductivity) and that of an insulator low conductivity) |
| Atom | Is the smallest particle that an element can be reduced to and still maintain the properties of that element |
| Electron | Is the negatively charged particle of an atom |
| Neutron | Is the neutral particle with a mass approximately the same as a proton and exists in the nucleus of an atom |
| Proton | Is the positively charged particle in the nucleus of an atom |
| Element | Is a substance that cannot be chemically broken down and contains atoms of only one variety |
| Sulfidation | Is the formation of film on the contact surface |
| Compound | Is a combination of the atoms of two or more elements |
| Molecule | Is the smallest particle that a compound can be reduced to and still possesses the chemical properties of the original compound |
| Valence electrons | Are electrons in the outermost shell of an atom |
| Electricity | Is the movement of electrons from atom to atom |
| Current | Is the flow of electrons in a conductor |
| Static electricity | Is an electrical charge at rest |
| Generated electricity | Is electricity produced either by pressure (piezoelectricity), light (photocell), heat (thermocouple), chemical action (battery), or magnetism (generator) |
| Law of electric charges | Is a law that states that opposite charges attract, and like charges repel |
| Electrification | Is the process of charging an object |
| Polarity | Is the positive (+) or negative (-) state of an object |
| Length | Is the measurement of linear units |
| Weight | Is a measure of gravity or the force of the Earth's attraction to a body |
| Mass | Is the measurement of matter contained in an object |
| Temperature | Is the measurement of the intensity of heat |
| Thermal conductivity | Is the higher the amount of heat produced, the faster the temperature increases in the body being heated |
| Current | (I) Is the amount of electrons flowing through an electrical circuit |
| Ampere | Is the number of electrons passing a given point in one second |
| Direct current | Is current that flows in only one direction |
| Alternating current | Is current that reverses its direction of flow at regular intervals |
| Solid | Is matter that has a definite volume and shape |
