Clip description Keywords
An introduction to electricity
An introduction to electricity

Duration: 02:43

A comprehensive introduction to electricity, including current, insulators and conductors.

 
Conductors and insulators
Conductors and insulators

Duration: 00:49

Why does a metal wire conduct electricity while the plastic sheath does not?

 
Current and energy in a circuit
Current and energy in a circuit

Duration: 01:25

Modelling is used to show how the current and charge in a circuit is not used up even though the energy store in a battery reduces over time.

 
Current and voltage in a circuit
Current and voltage in a circuit

Duration: 02:15

The difference between current and voltage in a circuit is explained. Electrons are mentioned and animations are shown.

 
Current and voltage in series and parallel circuits
Current and voltage in series and parallel circuits

Duration: 02:59

CGI animations are used to demonstrate current and voltage in different circuits.

 
Direct current vs alternating current
Direct current vs alternating current

Duration: 01:19

A demonstration of the difference between direct current and alternating current.

 
Electric shocks
Electric shocks

Duration: 01:02

An introduction to the concept of electric shocks and the functions of fuses and residual current devices (RCDs).

 
Electronic systems and burglar alarms
Electronic systems and burglar alarms

Duration: 03:22

Modern burglar alarms use sensors in combination with each other and different logic gates to minimise false signals.

 
How are switches used to control traffic lights?
How are switches used to control traffic lights?

Duration: 01:52

A demonstration of the use of switches and microprocessors to control traffic lights. The differences between series and parallel circuits are also shown.

 
Resistance in a circuit
Resistance in a circuit

Duration: 01:10

A demonstration of the current-resistance relationship of different materials in a circuit.

 
Series and parallel circuits
Series and parallel circuits

Duration: 02:51

A detailed explanation of series and parallel circuits including some household examples.

 
Voltage and current
Voltage and current

Duration: 03:14

An investigation into voltage and current using the Blackpool lights as an example.

 

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