Unit 02 Electrostatics and electricity
Key concepts:-
Related concept:-
Global context:-
Statement of Inquiry:-
Learning outcomes
Describe the difference between conductors and insulators.
Recall some rules that help you to use electricity safely.
Describe what is needed to make a current flow and how to measure current.
Describe what an electric current is.
Describe the difference between series and parallel circuits.
Explain how switches can control parallel circuits. Recall why parallel circuits are used.
Explain what happens to the current in a parallel circuit.
Explain that electrical consumption is stated in Kilowatt-hours.
Most electrical devices list power consumption in watts.
Define Kilowatt (kW), Kilowatt-hour (kWh), Ampere and Volt.
o Kilowatt (kW) - One thousand watts, where a watt is a unit of electrical power calculated as the rate of energy transfer equivalent to one ampere flowing under a pressure of one volt.
o Kilowatt-hour (kWh) - The standard measure of electricity usage measured as one kilowatt of power supplied to, or taken from, an electric circuit steadily for one hour.
o Ampere – The basic unit of electric current adapted under the System International Unit (SI)
o Volt – The unit of electromotive force, the volt measures how much pressure there is in an electric current. The higher the voltage, the more electrical current will flow in the circuit.
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