GCSE Physics Revision 'The National Grid'

In this video, we look at how electricity is distributed from power stations to homes via the National Grid. We explore the problem of energy loss and how this is overcome using step-up and step-down transformers.

This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Physics. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

Student studying: Gnarlycraig

Coal burning power plant Pibwl

Wind farm Steve Fareham

Hinkley A power station Rick Crowley

[mayelkhwajah]

This amazing human being used a step up transformer to raise my grades from a 3 to a 5. Thank you so much.

[myth]

if i get an 8 or a 9 this guy is the reason behind it.

[irfanusman]

Whether or not it's in your exam board, it's worth knowing that: the reason that lot's of energy is lost at high current is because at high currents, the wires heat up and heat energy is transferred to the surroundings. We can either use a high current or high voltage to transfer the electricity (as P=IV). We just decided that high currents waste too much energy, so we choose to use very high voltages (meaning very low currents, as 'P' is constant in P=IV) .

[reubenconstantine]

This channel is so much better than my physics teacher, thanks so much

[LittleLadyZ]

You made this hell-sent topic understandable. I thank you.

[riomasih]

Soon, this guys back will break from the weight of carrying 2020s GCSE students

[hakkeshsingh]

I'm in an internship right now and freesciencelessons is still teaching me. Thank you Sean, very cool!

[lemon]

This man explains it better than my actual physics teacher

[izzywarhurst]

This guy is a legend. Physics literally drops out of my head like my brain's a sieve, but this is making sense. I have mocks for all my sciences in two weeks, so thank you very

[kierannorth]

I went from a 5, 4 in science to a 8, 8 with just day before revision just because of this legend much love

[rafferty]

sir u saved my grades for my mock gcse THANK YOU!!!

[notolivia]

You just converted 4 of my (1 hour) physics lessons into like 5 minutes

[baderaqw]

lmao the test is in 30 mins and here i am

[boblol]

Wow, sir, you work so hard, makes me rethink about humanity when I see such persons

[deqohanshi]

God bless. This amazing person is even better than my school teachers.

[JRsingh]

havent skipped a single ad just so this guy can get paid

[Jofish]

From a 2-2 to a 7-7 in a year hopefully I clutch for the actual GCSE on Wednesday

[emilym]

I've got my gcses in a few weeks and I would just like to thank you for your amazing science videos which help me prepare well

[lemanade]

how does this guy make physics seem so easyy??? When my teacher explains stuff like this i get confused within the first 30 seconds of her speaking

[louiswebster]

I’m in Year 9 and in March I did some mock exams. On the morning of the science mock (which i was confident that i would fail despite finding out I passed) i knew nothing about the national grid (which spoiler alert didn’t appear). I tried to watch this but turned it off because of 2 reasons:

1. I couldn’t hear it through the traffic and I don’t bring earphones to school because I couldn’t be bothered
2. I remembered that I only live like 5 minutes away from school so I doubted that I wouldn’t finish the video before I got to school

But still, ALL HAIL SHAUN DONNELLY!



Also I need to state that my school made up the science exam whilst using questions from past papers.

Also I got 36/60 on the paper for those wondering. I am still wondering how I passed the exam because I barely know a thing about science. Maybe it’s because I did WAY TOO MUCH REVISION FOR IT AND MY MUM FORCED ME TO DO IT (albeit in a kind loving way)