DELMAR S TEXTBOOK OF ELECTRICITY SECTION 1 UNITS 1 5 2026/2027 ||
ELECTRICAL FUNDAMENTALS & SAFETY || BASIC ELECTRICAL THEORY ||
UNITS, MEASUREMENTS & CALCULATIONS || PRACTICE QUESTIONS
WITH VERIFIED ANSWERS || GRADED A+
Alternating Current (AC) - CORRECT ANSWER -Source of electricity where
the flow is bidirectional.
Atom - CORRECT ANSWER -Basic building block of the universe. Smallest
part of an element. Made of a proton, electron, and neutron.
Electron Orbit - CORRECT ANSWER -The outer shell of an atom. There are
multiple orbits.
Element - CORRECT ANSWER -A substance that cannot be chemically
divided into two or more simpler substances.
Insulators - CORRECT ANSWER -Materials that resist the flow of energy.
Materials that contain 7-8 valence electrons.
Matter - CORRECT ANSWER -Any substance that has mass and occupies
space. Made from a combination of atoms.
Molecules - CORRECT ANSWER -Combinations of atoms to make a
compound or substance.
Negative - CORRECT ANSWER -A term used to designate lines of force
coming inward.
Neutron - CORRECT ANSWER -The part of an atom that has no charge
, Nucleus - CORRECT ANSWER -Combination of protons and neutrons at the
center of an atom
Positive - CORRECT ANSWER -A term used to designate the lines of force
extending outward.
Proton - CORRECT ANSWER -The positive part of an atom.
Repulsion - CORRECT ANSWER -Similar charges such as Positive to
positive or negative to negative
Semiconductors - CORRECT ANSWER -A material that is neither a good
conductor or a good insulator. Contains 4 valence electrons and as they are
heated, their resistance decreases.
Photon - CORRECT ANSWER -A massless particle of pure energy. Produced
when electrons move from one energy level to another.
Atomic Number - CORRECT ANSWER -The number of protons in an
element.
Attraction - CORRECT ANSWER -Unlike charges such as positive to
negative
Bidirectional - CORRECT ANSWER -Reverses direction of flow at regular
intervals
Conductor - CORRECT ANSWER -Material that contains 1-3 valence
electrons allowing electrons t flow through them easily. Heat causes their
resistance to increase.
ELECTRICAL FUNDAMENTALS & SAFETY || BASIC ELECTRICAL THEORY ||
UNITS, MEASUREMENTS & CALCULATIONS || PRACTICE QUESTIONS
WITH VERIFIED ANSWERS || GRADED A+
Alternating Current (AC) - CORRECT ANSWER -Source of electricity where
the flow is bidirectional.
Atom - CORRECT ANSWER -Basic building block of the universe. Smallest
part of an element. Made of a proton, electron, and neutron.
Electron Orbit - CORRECT ANSWER -The outer shell of an atom. There are
multiple orbits.
Element - CORRECT ANSWER -A substance that cannot be chemically
divided into two or more simpler substances.
Insulators - CORRECT ANSWER -Materials that resist the flow of energy.
Materials that contain 7-8 valence electrons.
Matter - CORRECT ANSWER -Any substance that has mass and occupies
space. Made from a combination of atoms.
Molecules - CORRECT ANSWER -Combinations of atoms to make a
compound or substance.
Negative - CORRECT ANSWER -A term used to designate lines of force
coming inward.
Neutron - CORRECT ANSWER -The part of an atom that has no charge
, Nucleus - CORRECT ANSWER -Combination of protons and neutrons at the
center of an atom
Positive - CORRECT ANSWER -A term used to designate the lines of force
extending outward.
Proton - CORRECT ANSWER -The positive part of an atom.
Repulsion - CORRECT ANSWER -Similar charges such as Positive to
positive or negative to negative
Semiconductors - CORRECT ANSWER -A material that is neither a good
conductor or a good insulator. Contains 4 valence electrons and as they are
heated, their resistance decreases.
Photon - CORRECT ANSWER -A massless particle of pure energy. Produced
when electrons move from one energy level to another.
Atomic Number - CORRECT ANSWER -The number of protons in an
element.
Attraction - CORRECT ANSWER -Unlike charges such as positive to
negative
Bidirectional - CORRECT ANSWER -Reverses direction of flow at regular
intervals
Conductor - CORRECT ANSWER -Material that contains 1-3 valence
electrons allowing electrons t flow through them easily. Heat causes their
resistance to increase.
