p5
- Created by: hafiza.k
- Created on: 20-04-15 09:55
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- P5 electric circuits
- moving charges
- Untitled
- moving charges
- conductors and insulators
- Metals - good conductors because it has free electrons so lots of charges are free to move
- plastics- insulators because of few free electrons so few charges free to move
- static electricaty
- protons= positive
- electrons= negarive
- neutrons= no charge
- forces of attraction between positively charged nucleus and negatively charged electrons in atom
- electrostatic forces between charged objects
- e,g comb
- like charges repel-opposites attract
- nucleus
- made of neutral neutrons
- positive protons
- atom made up of charged particles
- positive nucleus
- negative electrons
- two insulating objects are rubbed together= become charged
- electrons are transferred from one object to another
- object which have lost electrons=positively charged
- objects which have gained electricity= negatively charged
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