3rd Quarter (Physics 2)

• Electric charge - produce when the amount of electrons and protons are imbalanced
• intrinsic - does not depend on how big or small the material is (melting point, density)
• extrinsic - depends on the size of the material (mass, volume)
• coulombs (C) - equals to the charge of protons and electrons together
• Benjamin Franklin - invented the coulombs
• law of conservation of electric charge - states that no net electric charge are created nor destroyed
• electric forces - objects that are electrically charge that attracts and repels each other
• objects that are classified according to their ability to get charge are called conductors and insulators.
• Different methods of charging

  • friction - rubbing two different metals on each other, either different or same charge.
  • conduction - charging of neutral objects that are within an electric charge object.
  • induction - charging neutral objects without contact to charged objects.
• conductors - are mainly metals where charge are able to move freely
• insulators - where charge cannot move freely
• vector - has both direction and magnitude force acting on each other
• Electric field charge - force acting on a charged object
• types of electric field line

  • Parallel - lines that do not meet
  • 2 positively charged particle
• Electric field intensity - non-charging, constant, and continuously flowing
• Air gushing through the window going through your face is called air flux
• Guassian Surface/ Guass's law - the electric field in a gusssian surface is always perpendicular and the magnitude is always the same