GCSE Combined Science (AQA)

622 videos | 38 hours

Energy Transfers in Appliances

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Electricity Energy transfers

Energy Transfers in Appliances

3:32 Electrical Energy and Power
Spec 4.1.1.1 4.2.4.2
Previous Energy Transferred by Charge Next The National Grid
  • Electrical appliances transfer energy carried by electrical currents to other forms.
  • Lamps and bulbs transfer electrical energy to light.
  • Desk lamps and torches transfer electrical energy into light.
  • Other appliances that transfer electrical energy into light include digital displays, traffic lights, and car indicators.
  • Motors transfer electrical energy into kinetic energy.
  • Examples include washing machines, electric drills, cars, and blenders.
  • Speakers transfer electrical energy into sound.
  • Examples include loudspeakers, alarms, alarm clocks, radios, and megaphones.
  • Heating devices transfer electrical energy to thermal energy.
  • Examples include toasters, cooking devices, electric heaters, hand warmers, electric ovens, and kettles.
  • Resistors gain thermal energy when a current flows through them, causing ions to vibrate and gain thermal energy.
  • Heating devices use strong resistors to build up thermal energy, which is then transferred to other objects.
  • Some appliances transfer electrical energy to multiple forms, such as searchlights and phones.
  • Complex appliances like cars, TVs, and computers involve multiple energy transfers.

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