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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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Below a typical questions that will be covered in this test. You final score will be logged on your account

A cable has a resistance of 0.5 O and carries a current of 1000 A. What is the power loss in the cable?
Which of these is a direct benefit of stepping up voltage before long-distance transmission?
Why is three-phase AC often used for large-scale power transmission and industrial supplies?
In the context of the National Grid, what is meant by grid “reliability”?
Why are losses from I^2R heating particularly important for long transmission routes?
Which of the following correctly states a typical UK mains electricity specification?
Which of the following best explains why bringing energy storage (like batteries) into the Grid is useful?
Which property of alternating current (AC) makes it practical to use transformers in the National Grid?
How does integrating large amounts of wind and solar generation affect the National Grid?
Which of the following describes “demand-side response” as used by grid operators?
A transmission line transports 200 MW of power at 400 kV. What is the approximate current in the line? (Ignore losses; use P = V × I.)