My notes

• Atom

  • Neutron - no charge particle
  • Proton- positively charge
  • Electron- negatively charge

  
• Gain electron

  (-) charge
• Lose electron

  (+) charge
• Same charges

  Repel
• Opposite charges

  Attract
• Types of Charging

  • Friction - rubbing together of surfaces transfers electrons from one object to another
  • Conduction - electrons flow from one object to another through direct contact
  • Induction - involves the rearrangement of charges in an object without contact

  
• What causes lightning?
• Electricity from non-moving charges

  • Conduction
  • Electron
  • Induction
  • Proton
  • Static Electricity

  
• Static Electricity

  Non-flowing charges that build up or jump due to the imbalance between negative and positive charges in objects
• Electric Current

  • A rate of flowing charges in a circuit
  • Current = Charge / Time
• Series Circuit

  • All components are connected end-to-end, forming a single path for current flow
  • If 1 load is broken, the rest will not work
• Parallel Circuit

  • All components are connected across each other, forming exactly two sets of electrically common points
  • Has many paths for current flow, but only one voltage across all components
• Series circuit

  Bulbs glow dimmer
• Parallel circuit

  Bulbs glow brighter
• Advantages & Disadvantages

  • Series Circuit - Simple Design, Brighter of the bulbs, Longer lifespan of batteries
  • Parallel Circuit - Independent control of bulbs, Lighting of other bulbs in spite of a broken bulb, Less likely to overheat
• Understanding how electricity and circuits work will allow you to do safety measures when dealing with electricity at home