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Science 9 > Electrical properties > Flashcards

Electrical properties Flashcards

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1
Q

Rheostat

A

Continuously variable resistor

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2
Q

Electrolyte

A

Liquid or paste that conducts electricity because it contains ions

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3
Q

Resistor

A

Substance that resists the flow of electricity

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4
Q

Electrode

A

A conductor which electricity enters or leaves a material or device

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5
Q

Wet cells

A

Electrochemical primary Cells having a liquid electrolyte

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6
Q

Charge separation

A

Concentration of like charges in specific areas of a neutral object

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7
Q

Voltage

A

A measure of how much electrical energy a charged particle carries

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8
Q

Breaker

A

A device that opens up a circuit if too much current is running through it

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9
Q

Electric current

A

Steady flow of charged particles

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10
Q

Electrical discharge

A

Sudden transfer of electrical charge from one object to the next , shown as a spark

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11
Q

Ampere

A

Unit that measures the rate of flow of an electrical current

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12
Q

Static electricity

A

Stationary electrical charge

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13
Q

Current electricity

A

Electricity that travels through wires and flows continuously

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14
Q

Current electricity

A

Electricity that travels through wires and flows continuously

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15
Q

Load

A

Device in a circuit that converts electrical energy to another type of energy

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16
Q

Circuit

A

A pathway for electricity to travel

17
Q

Electrolysis

A

Process used to separate useful elements from solutions

18
Q

Fly ash

A

Fine airborne ash produced by burning coal

19
Q

Fuel cell

A

Primary cell that generates electricity directly from the chemical reaction with a fuel

20
Q

Electromagnetic induction

A

Generations of electric current in a conductor by a changing magnetic field

21
Q

Power

A

Rate at which a device converts energy

22
Q

Geothermal energy

A

Energy deprived from the internal heat of the earth

23
Q

Thermocouple

A

Device consisting of two wires that can generate electricity

24
Q

Armature

A

Rotating shaft or coil in a motor or generator

25
Q

Transformer

A

Device that changes electricity at one voltage to another

26
Q

Alternating current

A

Current that flows back and forth

27
Q

Brushes

A

Mechanisms that make electrical contact with the moving communtator in a motor

28
Q

Nuclear fission

A

Slitting of atoms

29
Q

Commutator

A

Split ring in a motor that break the flow of electricity for a moment and then reverses the connection of the coil

30
Q

Energy

A

The ability to do work

Science 9 (4 decks)

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