Download Things You Need to Know

Things You Need to Know- Electricity Unit
Static Electricity
- how an electroscope works
- how static electricity works
- a few examples of good conductors, fair conductors, and insulators
- a couple examples of applications of static electricity
- what happens during an electric storm (lightning)
Know the definitions of the following:
Charged, electric charge, static electricity, electrostatic, positive charge, negative charge,
neutral, insulator, conductor, law of attraction and repulsion, electroscope, lightning,
lightning rod, ground (verb), charging by contact, charging by induction, charging by
friction
Current Electricity
- circuit symbols, used for drawing diagrams
- the symbols and units for charge, current, time, potential difference, energy and
resistance
- how electric current flows through a circuit
- how (where they are in a circuit) and why we use an ammeter and voltmeter
- how to work out problems using these formulae (all will be provided, along with
their variations): I = Q/t
V = E/Q
R = V/I
Know the definitions of the following:
Positive terminal, negative terminal, circuit, switch, circuit diagram, battery,
electrochemical reaction, resistor, load, current electricity, Electrical potential energy,
anode, cathode, open/closed circuit
ALSO, know that there will be a question on “Sources of Electricity” (the sheet we most
recently completed about power plants/ production). Don’t memorize, but rather
understand the advantages and disadvantages.