chapter 10 Flashcards

1
Q

Count Volta

A

Italian scientist, in 1800 he invented the voltaic pile, the predecessor to the modern battery. THis was the first time scientists had a reliable source of electricity.

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2
Q

Protons have a ____ charge

A

+ positive

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3
Q

electrons have a _____ charge

A
  • Negative
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4
Q

Nuetrons have a ____ Charge

A

nuetral charge

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5
Q

Protons and Nuetrons are located where

A

In the middle of the atom

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6
Q

Electrons are located where

A

around the outside of the atom

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7
Q

Accumulated electrons

A

static electricity

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8
Q

Conduction

A

electric charges flowing through a medium, like metal wires

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9
Q

induction

A

when the electrons move around because of them being around eachothether. pushing the object in question

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10
Q

an electrical current always runs fom

A

the negative to the positive

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11
Q

how to properly draw a diagram of an electrical flow

A

look at notes, I drew it there

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12
Q

Pump (analogical battery)

A

makes the water flow by creating a difference in pressure. The water will always flow from high to low pressure

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13
Q

pipe ( analogical wire)

A

provides a contained pathway for the water to flow

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14
Q

water ( analogical electricity current)

A

flows in the pipes. flowing water actually consists of many individual molecules moving along In the pipe.

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15
Q

filter ( analogical resistor (like a lightbulb) )

A

procides resistance to the flow of water. the resistance depends on how tightly the filter is packed. it’s doing a practical job (cleaning the water) and that’s why we even have the water circuit.

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16
Q

AC

A

Alternating current, this means that the current and voltage are constantly changing ( alternating from + to - and back again.) (example: the electricity that comes from a wall outlet)

17
Q

DC

A

Direct current, a flow of electricity that does not change direction, like batteries

18
Q

Ampere (AMP)

A

THe scientific unit of electrical current

19
Q

Resistance is measured in

20
Q

Voltage is measured in

21
Q

current is meausured in

22
Q

Voltage equation ( Ohm’s law)

23
Q

Electrical power equation

24
Q

In a DC the current flows from

A

positive to negative

25
In a DC current the electrons flow from
negative to positive
26
Resistor
Slows the current by stopping the current ACROSS itself, not through it
27
µ
micro
28
Ω
ohlms
29
Types of two-resistor networks
Series and Parrelel
30
Series network
two resistors are on the smae wire as eachother
31
Parallel
splits stream into two seperate wires connected to the same wire.
32
how do wiresr work when splitting
If a passage is bigger more liquid will go through it than the smaller one
33
Resistance equation
R = V/I
34
REQ for Series circuit
REQ = R1 + R2 + R3...
35
Kirchhoffs law
the current going into a junction must equal the sum of all the currents exiting the wire
36
kirhhoffs voltage drop law
The voltage rise will equal the voltage drop
37
Ohms law
V = IR