Electricity

• Rubbing two things together causes electrons to be gained by the action
• The material that gains the electrons is known as static, otherwise known as static electricity
• Law of electric charge


  Like charges repel, different charges attract
• Van de Graaff Generator

  1. Charges are put on a rubber belt

  2. The belt carries the charges up into the dome
• Electric current


  The flow of energy
• For an electric current to flow


  • A complete circuit is needed
  • A working battery is needed
• Conductors


  A material that electricity can pass through
• Insulators


  A material that electricity cannot pass through
• Electrical components


  • Cell
  • Battery
  • Motor
  • Switch
  • Ammeter
  • Voltmeter
  • Resistor
  • Buzzer
• Conventional current


  The flow of current from positive to negative
• Electron flow


  The flow of current from negative to positive
• Series circuit


  A circuit with only one path for electric current to flow
• Parallel circuit


  A circuit with more than one path for electric current to flow
• Current in circuits is the carrying around of electrons around the circuit
• Voltage in circuits is the energy carried around the circuit by the current flow