PHYSICS

• Electric potential is the amount of work needed to move a unit charge from a reference point to another.
• Work can only be done when displacement occurs.
• Work is measured in Joules (J). It is also used as unit for energy
• Energy is the ability or the capacity to do work.
• Electric Potential Energy describes how much stored energy a charge has when moved by an electrostatic force
• Electric Potential - amount of electric potential energy per unit charge
• Electric Potential = the amount of work needed to move a unit charge from a reference point to another = amount of electric potential energy per unit charge.
• Electric potential energy is the energy that is needed to move a charge against an electric field. 
• The SI unit of Electric Potential is Volt(V)
• Electric potential energy is the energy that is needed to move a charge against an electric field.
• You need more energy to move a charge further in the electric field, but also more energy to move it through a stronger electric field.