Electricity

• What is an electrical charge?

  An electrical charge is the continuous flow of electrical charged through a material (conductor).
• Electrical charges always flow from a region of high potential energy to a region of low protentional energy. (negative to positive)
• Volts's measurement is volts (v)
• Current is the measure of the flow of electrons through a circuit.
• • In a Direct Current (DC) the electrons only flow in one direction. In an Alternating Current (AC) the electrons shuffle back and forth in the wires. 
• Current's unit is Amperes (A) and symbol is (I)
• Resistance opposes the flow of a charge,
• The symbol of resistance is (R) and the unit is Ohm (Ω).
• • If a component has a high resistance it has more ohms, the less resistance the less ohms.
• The Loss in energy is referred to as a Voltage Drop. A component with a high resistance has a large voltage drop.
• • If you make a wire wider, its resistance will decrease
  • If the length of a wire increases the resistance will also increase.
• What is the law of conservation of energy?

  Energy cannot be created or destroyed but only transferred and transformed.
• Voltage = Current x Resistance
• Current = Voltage / Resistance
• Resistance = Voltage / Current
• Voltage is the difference in potential energy between two points in the circuit.
• In a circuit, a current changes direction based on the way the power source 'pushes'