Physical Sciences

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Physical Science

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36 Terms

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ammeter
a device used to measure electrical current.
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ampere
standard unit of electric current
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battery
A component that stores chemical energy to be used as a power source
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circuit
A pathway for electricity to flow around
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cicuit diagram
A representation of an electrical pathway
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closed circuit
A complete pathway that allows electrical current to flow
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component
Part of an electrical circuit e.g. battery
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directly proportional
As one amount increases, another amount increases at the same rate
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electrical current
The flow of electrons through a circuit
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electron
A very small subatomic particle with negative charge
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inversely proportional
As one amount increases, another amount decreases at the same rate
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lamp
A component that produces light
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multimeter
A device that can measure both resistance and voltage
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negative terminal
The part of a battery that electrons flow out from
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ohm
The standard unit of electrical resistance
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ohms law
The relationship between current, voltage and resistance
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open circuit
A broken pathway that does not allow electrical current to flow
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positive terminal
The part of a battery that electrons flow towards
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resistance
A material's opposition to the flow of electrical current
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resistor
A component designed to lower the current passing through a circuit
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switch
A component used to open or close a circuit
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terminal
Part of a component where electrical current can leave or enter
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volt
The standard unit of voltage
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voltage
The amount of energy per charge
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voltmeter
A device used to measure voltage
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wire
component made of a flexible strand of conductive metal
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visible spectrum
The range of light frequencies that we can see
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transparent
Allowing nearly all light to pass through
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transmission
The passing of light through a material
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translucent
Allowing only some light to pass through
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refraction
The bending of light as it passes into a new material
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relfection
The bending of light as it bounces off a surface
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prism
A transparent object with flat surfaces, which refract light
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periodic motion
Movement that is repeated at regular intervals
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period
The time it takes a wave to go through its full motion once
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opaque
Not allowing light to pass through