SCIENCE OLYMPIAD - Circuit Wizardry - Circuits (concepts, standards units of measurement, Ohm's law)
Terms in this set (16)
Components of an electric circuit
Source / battery
Other components (i.e. resistors, motor, etc.)
A circuit that can help distinguish electrical conductors from electrical insulators.
Ex: battery, wires and bulb (connect with different materials to test them)
The flow of electric charge (electricity) through a material.
Direct current (DC)
A type of current that only flows in one direction (unlike AC which periodically reverses direction).
The name for the electric force that causes electrons to flow. It's the measure of potential difference between two points in the circuit.
Voltage may come from a battery or a power plant (energy source).
____________ is a measure of how the flow of electric current is opposed or "resisted."
A_______ _______ is a circuit where there is only one path for electrons to follow, from the source through all of the components and back to the source.
If you turn off any electrical device in a _______ circuit, you will turn them all off. If you turn that device back on, you will turn on all the other devices.
In a ______ ________ the current through each of the components is the same
The voltage across the circuit is the sum of the voltages across each component.
A ___________ is a circuit where the electrons have more than one path to follow.
If you turn off one electrical device in a _______ _______, you will NOT turn them all off.
In a ________ _______ circuit, the voltage across each of the components is the same
the total current is the sum of the currents through each component.
Unit of measurement for voltage (V)
Unit of measurement for electrical current (A or amp)
Unit of measurement for resistance
(often represented by the omega symbol: Ω)
The tool for measuring the voltage (volts) in an electric circuit.
The tool for measuring the current in a circuit.
The tool for measuring the resistance in an electric circuit.
A ________ can measure several functions including voltage, current, resistance, and temperature.
___________ states that the current passing through a conductor is proportional to the voltage over the resistance.
I = V / R or V = I x R or I = V / R
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