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Tutor HuntTest QuestionsPhysics QuestionsYear 10 Physics Questions

 

The National Grid (GCSE Physics)

The following is a GCSE Physics test covering 'The National Grid' from the broader topic Electricity. The test is geared towards the AQA exam board style syllabus.
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Which of the following is a typical measure used by grid operators to ensure supply matches demand in real time?
Which property of alternating current (AC) makes it practical to use transformers in the National Grid?
Which of these is a reason the National Grid maintains spinning reserve (online generators running below full output)?
What role do substations play in the National Grid?
Which of the following describes “demand-side response” as used by grid operators?
How does integrating large amounts of wind and solar generation affect the National Grid?
Which of the following best explains why bringing energy storage (like batteries) into the Grid is useful?
What is one consequence on the Grid if a major power station unexpectedly trips offline?
Why are losses from I^2R heating particularly important for long transmission routes?
In the context of the National Grid, what is meant by grid “reliability”?
What is meant by the “capacity” of the Grid or a power station?