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• Electricity is defined as the flow of electron or electric current.
• Electron is the negatively charge component of an atom.
• Proton is the positively charge component of an atom.
• matter is anything that occupy space and has mass.
• Atom is the basic component of matter. It composes of a nucleus which is the central part, the protons and electrons.
• Current same as electricity or flow of electron. The amount of current flowing in a circuit can be measured in ampere.
• Voltage is the amount of pulling force that makes the electron flow.
• Resistance is defined as the opposition to the flow of current. The amount of resistance can be measure in ohms.
• Conductors are materials that easily allow the flow of current, or it has a low resistance to current flow.
• Insulators are materials that do not easily allow the flow of current, or it has a high resistance to current flow.
• In direct current (DC), the flow of electric charge is only in one direction.
• In alternating current (AC,) the movement of electric charge periodically reverses direction.
• Electric circuit - is the pathways for electricity to flow.
• Load - commonly represented by a bulb or any electrical component that consumes electricity.
• Supply - Commonly represented by a cell or a battery.
• Switch - an electrical device that opens or closed a circuit.
• Open Circuit - a type of circuit that has an open path for current to flow.
• Closed Circuit - a type of circuit that has a closed path for current to flow.