Download vocabulary list for mini-unit: static electricity and current

VOCABULARY LIST FOR MINI-UNIT: STATIC ELECTRICITY AND
CURRENT ELECTRICITY
CHAPTER 32 &34/35 [OLD HEWITT BOOK]
CHAPTER 22/23 [RED BOOK]
Day 1:
Electrostatics: Electricity at rest; involves electric charges (positive and
negative due to loss/gain of electrons) and the forces between them
Conservation of charge: The principle that states net electric charges is
neither created nor destroyed but is transferable from one material to
another; reason for induction of charges, charging by friction, or
polarization of charges
Conductors: Electrons easily move in this type of materials; metals are
very good conductors since their electrons are “loose” and allow for
movement
Insulators: Materials have tightly bound electrons and are not able to
wander so that they do not allow the movement of energy through them
Day 2:
Electric field: Space around every electrical charge; a kind of aura that
extends through space; has both magnitude and direction; magnitude is
based on the type of charge and direction is from positive to negative
Electric potential energy: Energy a charge possess due to its location in an
electric field; a tendency to build up charges so that a force is produced
which then moves from higher to lower; measured in the SI unit called volt
(V) also called potential difference, electromotive force or voltage
Electric current: Flow of electrical charges; found in conductors; measured
in the SI unit called ampere (A)
Electrical resistance: The resistance of a material to the flow of an electric
current through it, measured in the SI unit called ohm (Ω); depends on the
amount of voltage provided & the temperature
Day 3:
Ohm’s Law: Relationship between voltage, resistance and current; greater
the voltage, the greater the current or if the resistance is doubled the
current will be ½
Direct current (DC): Flow of charge that is always in one direction; current
that is found in a battery
Electrical power: Rate at which work is done or the rate at which electrical
energy is converted into another form such as mechanical energy, heat, or
light; equal to the product of current and voltage
Electrical circuit: A path provided for the flow of electrons; can be open or
closed to allow the movement; 2 types series or parallel
Day 4:
Series circuit: An electric circuit in which devices are arranged so that
charges flow through each in turn; if one part of the circuit should stop the
current, it will stop throughout the circuit
Parallel circuit: An electric circuit in which devices are connected to the
same two points of the circuit, so that any single device completes the
circuit independently of the others; circuit divides the current by the number
of branches used
Schematic diagram: Simple diagrams which symbols that represent the
electrical circuit being used