Energy transfers common mistakes

Common mistakes

• Energy transfers in everyday appliances common mistake 1

  Giving a vague answer instead of directly addressing: Calculate energy transferred from charge flow and potential difference..

  Fix itAnswer by clearly explaining how to calculate energy transferred from charge flow and potential difference..

• Energy transfers in everyday appliances common mistake 1

  Giving a vague answer instead of directly addressing: Explain how the power of a circuit device relates to potential difference and current..

  Fix itAnswer by clearly explaining how to explain how the power of a circuit device relates to potential difference and current..

• Energy transfers in everyday appliances common mistake 1

  Giving a vague answer instead of directly addressing: Explain how the power of a circuit device relates to energy transferred over a given time..

  Fix itAnswer by clearly explaining how to explain how the power of a circuit device relates to energy transferred over a given time..

• Energy transfers in everyday appliances common mistake 1

  Giving a vague answer instead of directly addressing: Describe relationships between appliance power ratings and changes in stored energy during use..

  Fix itAnswer by clearly explaining how to describe relationships between appliance power ratings and changes in stored energy during use..

• Energy transfers in everyday appliances common mistake 1

  Giving a vague answer instead of directly addressing: Apply MS 3b and MS 3c skills when calculating electrical energy transfer..

  Fix itAnswer by clearly explaining how to apply MS 3b and MS 3c skills when calculating electrical energy transfer..

• The National Grid common mistake 1

  Giving a vague answer instead of directly addressing: Describe the National Grid as a system of cables and transformers linking power stations to consumers..

  Fix itAnswer by clearly explaining how to describe the National Grid as a system of cables and transformers linking power stations to consumers..

• The National Grid common mistake 1

  Giving a vague answer instead of directly addressing: State that electrical power is transferred from power stations to consumers using the National Grid..

  Fix itAnswer by clearly explaining how to state that electrical power is transferred from power stations to consumers using the National Grid..

• The National Grid common mistake 1

  Giving a vague answer instead of directly addressing: Explain that step-up transformers increase potential difference from power stations to transmission cables..

  Fix itAnswer by clearly explaining how to explain that step-up transformers increase potential difference from power stations to transmission cables..

• The National Grid common mistake 1

  Giving a vague answer instead of directly addressing: Explain that step-down transformers decrease potential difference to a lower value for domestic use..

  Fix itAnswer by clearly explaining how to explain that step-down transformers decrease potential difference to a lower value for domestic use..

• The National Grid common mistake 1

  Giving a vague answer instead of directly addressing: Explain why a high potential difference in transmission cables reduces current for a given power transfer..

  Fix itAnswer by clearly explaining how to explain why a high potential difference in transmission cables reduces current for a given power transfer..