Domestic uses and safety exam tips

Exam tips

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that mains electricity is an alternating-current supply..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to state that the UK domestic electricity supply has a frequency of 50 Hz..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to state that the UK domestic electricity supply is about 230 V..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain the difference between direct potential difference and alternating potential difference..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to identify cells and batteries as common sources of direct potential difference..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Direct and alternating potential difference exam tip 1

  Use precise subject-specific vocabulary when you explain how to identify mains electricity as a common source of alternating potential difference..

  This keeps your answer tightly aligned to the approved learning objective for Direct and alternating potential difference.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe most mains appliances as being connected using a three-core cable..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to identify the live wire as brown..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to identify the neutral wire as blue..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to identify the earth wire as green and yellow striped..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.