Principles of Electricity Flashcards

A form of energy that produces light, heat, magnetic and chemical changes.

Tiny negatively charged particles.

Flow of electrons along a path called a conductor.

<p>Cords on appliances should be kept straight and free of knots, kinks, and tangles to prevent breaks.</p> Signup and view all the answers

<p>The strength of the flow of electrons; one ampere equals 1,000 milliamperes.</p> Signup and view all the answers

<p>Pressure; measures how hard electrons are pushed by the source.</p> Signup and view all the answers

<p>Resistance; it measures how difficult it is to push electrons through a conductor.</p> Signup and view all the answers

<p>A unit that measures the amount of used energy.</p> Signup and view all the answers

<p>Frequency; it measures the number of cycles per second.</p> Signup and view all the answers

<p>A flow of electric charge, which is often carried by moving electrons in a wire.</p> Signup and view all the answers

<p>A type of current where electrons move at an even rate in only one direction.</p> Signup and view all the answers

<p>A type of current where electrons flow first in one direction and then the other.</p> Signup and view all the answers

<p>A closed path through which electrons travel to operate an appliance.</p> Signup and view all the answers

<p>A wiring method that powers several loads at once or at different times.</p> Signup and view all the answers

<p>A wiring method where all loads run at the same time and circuit travels from one load to the next.</p> Signup and view all the answers

<p>Occurs when too many appliances on one circuit are operated at the same time.</p> Signup and view all the answers

<p>Occurs when a foreign conductor comes in contact with a wire carrying current.</p> Signup and view all the answers

<p>Devices containing a fine metal wire that allows current to flow through it, connected directly to circuits in a power box.</p> Signup and view all the answers

<p>Used to generate heat.</p> Signup and view all the answers

<p>AC and DC.</p> Signup and view all the answers