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42 Cards in this Set
- Front
- Back
light bulbs filmats are _______
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resistors
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if one bulb burns out and it doesnt affect the other bulb it is a _______
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paralell circuit
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wiring that carries 115-120 _____
of electricity |
bolts
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the formula to find out how much current flows through a given part of a circuit in one second is watts divided by volts = _______
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amps.
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the size of the core, the _____ of the core, the number of coils, and the distance between the poles affects the strength of an electromagnet.
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shape
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a(n) _____ is a very small circuit with all of its parts built into it
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integrated circuit
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the parts of an electric cell are the ____,and ____
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electrolyte and two metals
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what are the advantages to a wet-cell battery
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it produces a large amount of current for a relativly short period of time
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what are the advantages to a dry-cell battery
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it has an electrolyte paste between the two metals
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_______ is a build up of electrical charges on the surface of an object
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static electricity
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_____ is the flow electrons around a circuit
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current electricity
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______ is a continuous unbroken path
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circuit
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______ is only one circuit for the electricity to travel
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series circuit
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_____ is the measurement of power, or how fast work is done
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watt
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____ is a very small circuit with all its parts built into it
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integrated circuit
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_____ is a machine that uses a magnet to convert motion into electrical energy
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generator
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____ is an electric current that carries info
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electrical signal
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true or false? the three parts of an electric power plant generator are a magnet, a turbine and a coil of wire
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true
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true or false? plastic, wood and glass are all good insulators that dont allow electricity to flow through them?
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true
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the _____ is the unit of measurement used to measure the the electrical push or force in a circuit
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volt
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the ______ _______ ______ uses open and closed circuits to communicate the numbers 0 and 1
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binary number system
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a _____ is a material that reduces the flow of electrons
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resistor
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the ________ is the unit used to measure how much current fllows through a given part of a circuit
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ampere
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magnetic force is strongest at the ______ of a magnet
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ends
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___________ conduct electricity better than insulators but not as well as conductors
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semiconductors
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_____ _______ signal info by opening and closing elctical circuits in a sequence
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integrated circuits
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a battery contains 1 or more ______ ______
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electrical cells
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______ discovered that current traveling througha wire produces a weak magnetic feild in the live wire
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Hans Christain OeSted
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_______ and _______ discovered that moving a magnet around or through aloop of wire produces electricity in the wire
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Joseph Henry and Michael Faraday
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______ discovered that adding a metal core to a coil of wire increases the magnetism
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William Sturgeon
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any material with the abbility to attract iron is a _______
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magnet
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magnets and ________ are similar because they both repel and attract other objects
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static electricity
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opposite poles of magnets ______, but two same poles of a magnet repel
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attract
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a(n) ____ is a coil of wire with a core attached to an electrical source
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electro magnet
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a(n) _____ uses a a magnet to convert motion into electrical energy
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generator
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magnets can be natural or _____
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man made
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magnets attract objects made from ______, ______, and _____
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iron, nickle and cobalt
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every magnet has a north and _____ pole
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south
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magnetic force ids strongest at the ______ of a magnet
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poles
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a car battery is an example of a ______ battery
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wet-cell
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in a "dead" battery, the metals no longer ______ with the electrolyte
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react
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a dry-cell battery uses an electrolyte ____ instead of a fluid
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paste
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