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.
- Conductors and insulators
Comments
No comments have yet been made