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Class Clips

# SecondaryScience : Phys: Electricity - Circuits

Clip description Keywords
An introduction to electricity

Duration: 02:43

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

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

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

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

Duration: 02:59

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

Direct current vs alternating current

Duration: 01:19

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

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

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?

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

Duration: 01:10

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

Series and parallel circuits

Duration: 02:51

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

Voltage and current

Duration: 03:14

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