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39 Cards in this Set
- Front
- Back
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An element's ______ indicates the approximate number of protons and neutrons in an element's nucleus
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atomic weight
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The opposition to the flow of electrions is called
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resistance
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Measured in amperes, the flow of electrons is referred to as
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current
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Mixtures of 2 or more elements are called
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compounds
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In Ohm's law, E/R=
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I
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Unlike charges
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attract
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Protons and neutrons compose the _____ of the atom
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nucleus
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Alternating and direct are the 2 types of electrical ____
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current
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The field of force surrounding a charged body is called the electrostatic field or the ______ field
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dielectric
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The theory that states that electrons flow from positive to negative is called the ...
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conventional current flow theory
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The initialism emf represents...
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electromotive force
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When a charged body is brought into close proximity to another body, ______ occurs
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induction
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Voltage is also referred to as _____ difference
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potential
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An atom displays a positive charge when it loses...
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an electron
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Two types of electrical current are...
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AC and DC
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Another term for electromotive force is...
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voltage
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Electrical pressure is measured in...
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volts
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A series circuit has...
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only one path for current flow
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Current that flows only in one direction is...
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DC
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The theory that states that electrons flow from negative to positive is called the...
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electron flow theory
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An example of a good conductor of electrical energy is...
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silver
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The three main parts of an electrical circuit are the...
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voltage source, load, and conductors
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A positively charged body contains more...
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protons than electrons
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What letter is commonly used to represent voltage in Ohm's law formula?
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E
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A good conductor has how many outer ring electrons?
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One
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What letter is commonly used to represent current in Ohm's law formula?
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I
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Induction is caused by...
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bringing a charged body near another body
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The 2 symbols used to indicate electrical polarity are...
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+ and -
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The field of force surrounding a charged body is called the
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electrostatic field
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A negatively charged body contains more
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electrons than protons
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An atom displays a negative charge when...
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there are fewer protons than electrons
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The part of a circuit that carries the flow of electrons is referred to as the...
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conductor
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A coulomb represents how many electrons?
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6,240,000,000,000,000,000
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The term static means
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at rest
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electrical resistance is measured in...
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ohms
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What letter is commonly used to represent electrical resistance in Ohm's law formula?
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R
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An ionized atom is electrically...
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unbalanced
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Current is generally measured in...
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amperes
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The unit of measurement of electron flow, derived from the force of attraction or repulsion of charged particles, is...
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coulombs
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