STATIC ELECTRICTY-Science

• What electricity builds up on the surface of an object when eletrons move from one surface to another?

  Static Electricity
• Which of the following statements describes an object with positive charge?

  Electrons are lost from one object to another object
• What occurs when charges are transferred through friction?

  Electrons are lost from one object to another object
• What is lightning?

  Electrical Discharge
• What occurs when glass is rubbed on cotton?

  The cotton gains electrons and becomes negatively charged
• What does a lightning rod attached to a building need in order to be effectivr s a lightning safety device?

  Grounding
• What object does lightning strike first?

  Tallest object
• Which is NOT a part of the law of electric discharge?

  Neutral objects attract to other neutral objects
• A neutral object loses electrons what is the new charge?

  Positive
• What are good conducters?

  Materials that allow electrons to move freely from one object to another
• when a positively charged object is brought near a neutral electrocscope what happens to the scope?

  The positive charges in the scope move toward the knob,leaving the leaves negative, making the leaves more apart
• The law of electric charges states that two objects with like charges will repel each other.
• The movement of electrons within a substance caused by a nearby charged object?

  charging by induction
• occurs when electrons transfer from the charged object to the neutral object that it touches?

  charging by contact
• The process of connecting a charged object to the earths surface?

  Grounding
• rubbing a wooden rod with fur?

  making a rod negetively charged
• rubbing a glass rod with cotton?

  Making a rod positively charged
• what does a.m.u stand for?

  atomic mass unit
• what is electrostatic?

  study of electric charge
• What is static electricity?

  Buildup of electric charge on an object.
• List the 3 parts of the law of Electric charges?

  Repulsion, attraction and neutral
• Example of a insulator?

  Rubber
• Example of a conductor?

  copper wire
• What is a electrostatic generator?

  A machine used to create charge through friction
• electrons are charged?

  Negetively
• protons are charged?

  positively
• electro discharge?

  Transfer of electrons
• example of electric discharge?

  lightning
• charging by induction?

  charging without touching with a ground
• friction?

  rubbing 2 object together