A Coggle Diagram about ELECTROSTATICS
, Uses and danger of electrostatics
, Insulator: a material that electrons cannot flow through
Conductor: a material where outer electrons are shared, they are free to move around
, When 2 insulators are rubbed against each other they become charged. This will leave a positive electrostatic charge on one and a negative electrostatic charge on the other
, Only electrons move - never the positive charges. The greater the charge on an isolated object, the greater the voltage between it and the Earth. If the voltage gets big enough there is a spark which jumps across the gap.
, As charge builds up so does the voltage, causing sparks.
and When 2 electrically charged objects are brought close together, they exert a force on each other. Same charges repel. Opposite charges attract.
(Series and parallel circuits
, 1 Current is the rate of flow of charge round the circuit
- Voltage is the driving force that pushes the current round
- Resistance is anything in the circuit which slows the flow down.
, If you increase the voltage then more current will flow. If you increase the resistance then less current will flow (unless you add more voltage)
, The ammeter measure the current flowing through the component.
Must be placed in a series circuit only
, The voltmeter measures the voltage across the component.
Must be placed in parallel only
and In circuits the charge carrier are electrons. The circuit need a complete conducting path.
), CHARGE & CURRENT
), OHM'S LAW
, ELECTRICAL ENERGY & POWER
and MAIN ELECTRICITY & SAFETY