Electricity Physics PDF

What is Electricity ?  Learning content Why do we need Electrical electricity? insulators What is electricity? Static electricity Electrical conductors Quiz time  why do we need electricity? Electricity is essential for lighting...

What is Electricity ?  Learning content Why do we need Electrical electricity? insulators What is electricity? Static electricity Electrical conductors Quiz time  why do we need electricity? Electricity is essential for lighting, powering appliances, transport and communication systems. Without electricity, life would be very different.  What is Electricity? Electricity is the flow of charged particles. Charged particles include positive protons and negative electrons. An electric current is the flow of electrons around a circuit.  electrical conductors All materials contain electrons (negatively charged particles). In materials made of metal, the electrons are free to move and carry the electrical charge. This makes them good electrical conductors.  electrical insulators Most non-metal materials (e.g. rubber and plastic) can’t conduct electricity because their electrons are not free to move, so can’t carry electrical charge. This makes them electrical insulators.  static electricity When you rub a balloon on a jumper, the electrons move from the jumper to the balloon. Negative charge builds up on the balloon. This is called static electricity. If you touch the balloon, you may get an electric shock, as electrical charge travels through you to the ground.  quick Name something quiz powered by electricity. Name a material which is an electrical insulator. What is electricity? What is static What makes a metal a electricity? good electrical conductor?  quick quiz answers Lights, appliances, transport or communication systems. Wood, plastic or rubber. The flow of charged particles. The build up of electrical charge. Electrons are free to move and carry electrical charge.  What is Electricity ?