Theme 5: Electricity in the Home (Form 4)

Total amount of electrons flowing in the circuit.

• Current

• Charge

• Voltage

• Resistance

Charges flowing per second

• Current

• Charge

• Voltage

• Resistance

Energy per Coulomb of charge

• Current

• Charge

• Voltage

• Resistance

Opposition to the flow of currrent

• Current

• Charge

• Voltage

• Resistance

Current is directly proportional to the voltage as long as the temperature remains constant.

• Law of charges

• Ohm's Law

Material which ALLOWS electricity to flow through it becuase it has free electrons.

• Conductor

• Insulator

Material which does NOT allow electricity to flow through it because it's electrons are tightly bound to its atom.

• Conductor

• Insulator

A conductor that obeys Ohm’s law

• Ohmic Conductor

• Non-ohmic Conductor

A conductor that does not obey Ohm’s law.

• Ohmic Conductor

• Non-ohmic Conductor

Material used in diode, LED, LDR and thermistor.

• Conductor

• Insulator

• Semi-conductor