NCATT Chap 1. Fundamentals of DC
Avionics - answer Aviation electronics are commonly known as
Matter - answer Anything that occupies space and has weight
Molecule - answer A chemical combination of two or more atoms is called
Excited state - answer When an electron has been elevated to an energy level higher
than its lowest possible energy level, the atom is said to be an
18 electrons - answer The third energy level or shell can contain a maximum
A kilovolt - answer equals 1,000 volts
A millivolt - answer1/1,000 of a volt
Conductors - answerSilver,copper,gold and aluminum are materials with many free
electrons.
Static electricity/Electrostatic force - answerAn electric force between two bodies that
aren't touching one another is known as,________, because the electrical current
cannot flow and the charges cannot be equalized.
Neutral - answerIn its natural state, with equal numbers of elctrons and protons, an
atom's charge is said be
directly. inversely - answerCoulombs law states that "charged bodies attract or repel
each other with a force that is______ proportional to the product of their individual
charges, and is______ proportional to the square of the distance between them.
Magnetism - answerThe property of a material that enables it to attract pieces of iron
Permeability - answerDescribes the ease with which magnetic lines of force distribute
themselves through material
18 - answerIn atoms with an atomic number of 36, if more than_____ spin in the same
direction, the atom is magnetized.
Lines of force/magnetic flux - answerSensitive instruments that can be influenced by
magnetic fields are protected by soft iron shields that redirect the_______ around the
instrument.
Avionics - answer Aviation electronics are commonly known as
Matter - answer Anything that occupies space and has weight
Molecule - answer A chemical combination of two or more atoms is called
Excited state - answer When an electron has been elevated to an energy level higher
than its lowest possible energy level, the atom is said to be an
18 electrons - answer The third energy level or shell can contain a maximum
A kilovolt - answer equals 1,000 volts
A millivolt - answer1/1,000 of a volt
Conductors - answerSilver,copper,gold and aluminum are materials with many free
electrons.
Static electricity/Electrostatic force - answerAn electric force between two bodies that
aren't touching one another is known as,________, because the electrical current
cannot flow and the charges cannot be equalized.
Neutral - answerIn its natural state, with equal numbers of elctrons and protons, an
atom's charge is said be
directly. inversely - answerCoulombs law states that "charged bodies attract or repel
each other with a force that is______ proportional to the product of their individual
charges, and is______ proportional to the square of the distance between them.
Magnetism - answerThe property of a material that enables it to attract pieces of iron
Permeability - answerDescribes the ease with which magnetic lines of force distribute
themselves through material
18 - answerIn atoms with an atomic number of 36, if more than_____ spin in the same
direction, the atom is magnetized.
Lines of force/magnetic flux - answerSensitive instruments that can be influenced by
magnetic fields are protected by soft iron shields that redirect the_______ around the
instrument.
