Uses and dangers of static electricity

?
  • Created by: emews
  • Created on: 05-11-17 11:56
View mindmap
  • Uses and dangers of static electricity
    • Conductors and insulators
      • Conductors allow electricity to flow through them easily.
      • Metals are good examples of electrical conductors.
      • Insulators prevent the flow of electricity.
      • Plastics are good examples of insulators.
      • Electrostatics
        • Objects can be positively charged, negatively charged or neutral.
        • A substance that gains electrons becomes negatively charged
        • Like charges repel, and unlike charges attract.
        • Any area in which an electric charge experiences a force is called an electric field.
        • It is the friction between the rod and the duster that results in the transfer of electrons
        • You can get an electrostatic shock if you are electrically 'charged' and you touch something that is earthed, or if you're earthed and you touch something that is charged.
        • Problems with static
          • it is a nuisance when dust and dirt are attracted to insulators such as TV screens and computer monitors.
          • it is a nuisance when clothes made from synthetic materials cling to each other and to the body, especially just after they've been in a tumble dryer
        • Dangers of static
          • Static electricity can build up in clouds. This can cause a huge spark to form between the ground and the cloud. This causes lightning – a flow of charge through the atmosphere.
        • Uses of static
          • Static electricity can also be useful. Here are some examples from industry and everyday life.

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Uses and dangers of static electricity resources »