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- An electric circuit is a path that allows electrons to freely flow through it.
- A voltaic cell is a cell that generates charge through the chemical reaction of two pieces of metal,with a conducting liquid separating them.
- A battery is a group of two or more cells,that generates charge through chemical reactions.
An electrode is a metal strip that reacts with the electrolyte in the cell.
- An electrolyte is a paste or liquid or paste that conducts electricity.
- e.g. alkaline.
- A dry cell is a cell that does not have liquid as the electrolyte, the electrolyte is generally a paste.
- e.g. a battery
- A wet cell is a cell that has a liquid electrolyte to help generate electricity.
- e.g. Car battery
- A primary cell is a cell that can only be used once/disposable.
- e.g. alkaline battery.
- A secondary cell is a cell that can be used more than once/rechargable.
- e.g. a cell phone battery.
- A fuel cell is a cell that has its fuel stored outside of it.
- e.g. Hydrogen fuel cell
- A solar cell is a cell that converts solar energy into electric energy.
- e.g. solar panels
A terminal is a device that connects a electrical devices to external circuits.
- A switch is a device that can control if a circuit is closed or open.
- e.g. light switch
A open circuit is a circuit that is not closed therefore electrons can not completely flow through it.
The amount of current that passes by a point in a circuit in a second.
A coulomb is a unit of charge that is equal to 6.25 × 10 18 electrons.
An ampere is the measure of the amount of current passing by a certain point in a circuit in a second.
- Electrical resistance is the difficulty that electrons have to pass by measured in ohms
- Any material that slows down the flow of electrons.
- e.g. light bulb filament
A load is a device that converts electric energy into another type of energy.
The potential energy difference between two points in a circuit.
The measurement for potential difference.
- A circuit diagram is a diagram that simplify s how a circuit works and shows all of the components in a normal circuit.
- A series circuit is a circuit that has only one path for the electrons to flow through.
- A parallel circuit is a circuit that has more than one path for electricity to flow through.
The law that says as long as temp. stays the same V=IR
A ohm is a unit to measure the resistance in a circuit.
- A superconductor is a conductor with no or minuscule resistance.
- e.g. hadron collider
- A circuit or material that does not obey ohm's law.
- e.g. LED
Loads in series
Loads in series are in a straight line and share the same energy, they also have to share a fraction of the current.
Loads in parallel
Loads in parallel all get the same amount of potential difference that the power source produces.