sci

• Ways heat is transferred

  • Conduction
  • Convection
  • Radiation
• Conductors


  • Materials where heat passes through easily
• Insulators

  • Do not allow heat to pass through and has large spaced molecules
• Conduction


  Transfer of heat through conductors
• Convection

  Gas/liquid moves
• Radiation

  1. Energy that comes from a source and travels at the speed of light

  2. Radiate heat in every direction

  3. Heat transfer from hotter to cooler objects
• The faster a molecule moves, the warmer the object is
• HEAT

  The energy that flows from one body to another
• THERMODYNAMICS


  Branch of physics that explores relationship heat and temp and different physical laws that govern heat transfer
• Heat transfer


  The transfer of energy will continue until they are at common temp
• Electrostatics


  The study of electricity at rest, but the electrons are at rest
• Electrons


  • The prime movers of electricity
• Our body has atoms that contain positive and negative charges attracted by force
• Static electricity

  Charges at rest
• William Gilbert found out that substances other than amber possess electric charges
• Substance

  Matter made of atoms
• Charging processes

  • Friction
  • Conduction
  • Induction
• Friction


  Transfers electrons from one material to another, upsets balance between positive and negative charges, made by rubbing objects
• Conduction


  Transfer of electrons through direct contact
• Induction


  Movement of electrons to one part of an object
• Grounding a charged object removes or balances its excess charge
• Grounding/Earthing gives path for charges to flow between objects