Batteries convert

• chemical to electrical energy

• electrical to chemical energy

• chemical to kinetic energy

• electrical to potential energy

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A cathode of a battery is

• the positive electrode

• the negative electrode

• the neutral electrode

• zinc

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The anode of a battery is

• the positive electrode

• the negative electrode

• the neutral electrode

• the copper

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The electrolyte of a battery

• supplies electrons for the battery

• allows chemical reactions to occur

• contains electrical energy

• is only a liquid

A circuit

• is a continuous path for electron flow

• is a broken path for electron flow

• must have a swtich

• must have at least one component (like a light bulb)

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Current is

• the amount of energy an individual electron has

• the number of electrons stored in a battery

• a measure of how many charges pass a point per unit time

• the number of volts in a circuit

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Current is measured with

• a voltmeter

• an ammeter

• a resistor

• a meter stick

An ammeter in a circuit may show the following units:

• amperes (A)

• milliamperes (mA)

• volts (V)

• millivolts (mV)

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Voltage is

• the amount of energy each charge in a circuit has

• the number of charges flowing through a point per unit time

• electricity

• measured with an ammeter

Electrons flow from

• anode to cathode

• negative to positive

• cathode to anode

• copper to zinc