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Current Electricity
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Terms in this set (44)
Battery
Source of voltage in a circuit. Many cells together.
Switch
Controls the movement of electrons in a circuit. Can be open or closed.
Closed
A circuit is _____ if electrons can flow completely around the circuit.
Open
A circuit is _____ if electrons cannot complete the path around the circuit.
Light Bulb
A specific form of load that converts electrical energy into light energy.
Wire
A conductor used to connect various circuit components.
Load
Converts electrical energy into some other form. Can also be called a resistor. Ex. fridge, toaster, etc.
Resistor
Limits the amount of current flowing through a circuit.
Voltmeter
Device used for measuring circuit components that is connected in PARALLEL.
Ammeter
Device used for measuring circuit components that is connected in SERIES.
Series Circuit
A circuit where the electrons flow through along a single path.
Parallel Circuit
A circuit where the electrons can flow along more than one path.
Short Circuit
Occurs when there is a direct connection from positive end to negative end of a battery.
Current
The flow of electrons in a circuit. How fast the electrons move.
Voltage
The push of electrons in a circuit.
Resistance
The push back of electrons in a circuit which slows down the current.
Power
How quickly electrical energy is converted to another form
Current
I - measured in amps.
Charge
Q - measured in coulombs
Time
t - measured in seconds
Electrical Potential
V - measured in volts
(another term for voltage or potential difference)
Energy
E - measured in joules
Resistance
R - measured in ohms
Power
P - measured in watts
Thin
Thick / Thin
Which wire has more resistance?
Long
Short / Long
Which wire has more resistance?
Less
More / Less
If the resistance increases there will be ____ current
More
More / Less
If the voltage increases there will be ____ current
Brighter
Dimmer / Brighter
If the current increases the bulb will be ____
Dimmer
If the voltage decreases the bulb will be ____
Brighter
If the resistance decreases the bulb will be ____
Parallel
Series / Parallel
A battery will last longer when connected in ____
Series
Series / Parallel
A battery will increase in voltage when connected in ___
Parallel
Series / Parallel
Resistance will get smaller when loads are connected in ___
Cell
Light Bulb
Load
Resistor
Voltmeter
Ammeter
Closed Switch
Open Switch
Series Circuit
Parallel Circuit
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