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Published byValentine Ferguson Modified over 5 years ago

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The amount of charge passing a point in a given time interval is

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current

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Opposite charges ______

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Attract

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Like charges _______

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repel

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The amount of potential energy stored in a battery is measured in _______

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volts

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A material in which electrical charges do not move freely

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insulator

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The heating wire in a toaster is low/high resistance

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high

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Electrical wiring is low/high resistance

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low

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A lightbulb filament is low/high resistance

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high

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If the voltage goes up, the current (increases, decreases)

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increases

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If the resistance decreases, the current (increases, decreases)

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increases

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An accumulation of electrical charges on an insulator is

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Static electricity

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In order to separate positive and negative charges, ______ must be added

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energy

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Conductors (will/will not) hold a static charge

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Will not

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Give 2 examples of an insulator

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Plastic, glass, wood, rubber

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The amount of energy which is changed into heat and light as an electrical current flows through the material

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resistance

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Electrical energy which is converted into heat, light, and sound when the electricity leaves the object

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Electrical discharge

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What is the formula for Ohm’s Law?

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R = V/I

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The small particles that make up matter

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atoms

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What method is involved when charges in an uncharged metal object are rearranged without direct contact with a charged object?

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induction

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Method of charging in which electrons are wiped from one object to another

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friction

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Material that allows charges to move freely

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conductor

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The force between two charged objects

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Electrical force

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The region around a charged object where a force is exerted on other objects

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Electrical field

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Expressed in Amps

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current

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What are the 3 parts in a circuit?

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Voltage, resistance, current

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What is the current when a 12-volt battery is connected through a resistance of 240 ohms?

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.05 amps

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What voltage produced a current of 100 amps with a resistance of 10 ohms?

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1000 volts

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