Astronomy | GCSE Physics Revision | Edexcel GCSE 9-1

Hazel goes through the entire Astronomy topic for the Edexcel 9-1 GCSE, including our solar system, circular orbits, the Big Bang and Steady State theories, life cycles of stars and methods of observing the Universe.

These videos are designed to help with your GCSE and IGCSE physics revision.

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Hazel completed her undergraduate degree at St John's College, the University of Cambridge. She then did a PGCE (Post-Graduate Certificate of Education) before qualifying as a science teacher. She now works full time as a professional tutor.

[muadh]

26:52 the correct answer is D, stars that are bigger and have more mass will actually have shorter main sequence.

[aineequreshi]

Hi Hazel, do bigger stars not have a shorter main sequence as they need more pressure to counteract the force of gravity and so nuclear fusion occurs at a faster rate (using up the hydrogen nuclei faster).

[Ayesha-sexf]

you could use My Very Energetic Mum Just Served Us Noodles :)))

[harrietpreston]

Hi, I have my test in a couple of days and we have the equation sheet but it does not contain many equations for calculating astrophysics equations, I just wondering if this was normal and what the basic equations would be that would still be useful to know?

[joshplayz]

Is this just the Astronomy unit for the Physics GCSE, or is this also for the new Astronomy GCSE course by Edexcel?

[d_i_a_v_l_o]

i wish my school did astronomy gcse lol

[danielfairclough]

Mercury is not a planet, as there is no atmosphere.