1 Flashcards

1
Q

outermost electron orbital shell

A

valence shell
some materials have loosely bound electrons here

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2
Q

conductors

A

materials (ie - atoms) that pass electrons more easily than others

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3
Q

insulators

A

do not have free electrons

cannot pass electrons between other atoms

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4
Q

circuit

A

route along which electrons can flow

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5
Q

voltage

A

pushing force of electrons within a circuit

like pressure in a water pipe

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6
Q

Volt

A

joule per coulomb

amount of work per group of flowing electrons

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7
Q

current

A

the flow of electrons past a single point in a circuit within a set amount of time

measured in Amps (Amperes)

1 Amp = 1 Coulomb
6 quintillion electrons per second

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8
Q

resistance

A

restriction to the flow of electrons

measured in Ohms

longer thinner wires provide more resistance

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9
Q

resistors

A

restrict flow of current to protect electrical components

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10
Q

how does resistance occur

A

flowing electrons collide with atoms

results in heat and light energy

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11
Q

inductor

A

current passing through a coiled wire

intensifies the magnetic field generated when current passes through a wire

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12
Q

increasing strength of an inductor

A

wrapping coil around an iron core

increasing coil turns

increase current

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13
Q

electromagnetic induction

A

current/voltage induced when a magnetic field passes through a coil of wire

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14
Q

transformers

A

using electromagnetic induction, induce voltage into a second coil

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15
Q

capacitor

A

forces negative/positive charges to separate across two plates

causes a buildup of electrons within an electric field

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