Sci 8 Electricity Test

Created by Stephy33 

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conductor

allows electricity to flow

insulator

a material that does not allow electrons to flow

circuit

a complete path of electrons

static charge

to many electrons or not enough

Ohm's Law

V=RxV

electric current

the amount of electrical flow

potentioal difference

push that drives the electrons through the circuit

electric power

P=VxI measered in watts

static discharge

When electrons jump from one thing to another

electrical resistance

The opposition to the flow of current

battery

provides potential difference

photocell

Device that converts light energy into electrical energy

thermocouple

measures used for really high temperatures

ammeter

measers current

voltmeter

measures potential difference

lamp

changes electrical energy into heat and light

longer wire or thinner wire

more resistence comes from this type of wire

Shorter wirer or thicker wire

less resistence comes from this type of wire

1

How many electrolights in a battery

2

How many electrodes in a battery

Static electricity

electricity that does not flow

Repel

similar charges

Attract

unlike charges

negativly

Substances become ________ charged if they gain electrons

positivly

Substances become ________ charged if they lose electrons

An atom

has a positivly charged nucleaus surronded by fast moving negativly charged electrons

Leclanche Cell

dry cell battery

4

A 6 volt battery has _ leclanche cells

6

A 9 volt battery has _ leclanche cells

1

A 1.5 volt battery has _ leclanche cells

same

current is _______ every where around a series circuit

adds

In a seriese curciut potential difference ___ to the potential difference of a battery

same

The potential difference across a parellel circuit is ______

conventional current

current that moves counter clock wise ( out of the positive side of the battery isn't true because only electrons move)

electron flow

current that moves clock wise (the real electron flow)

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