IGCSE Edexcel Physics 2024

Hey does anyone know the grade boundaries for igcse edexcel physics??

It varies every year but last year it went up 7 marks (142), went up another 7 marks in 2022 (135), in 2021 and 2020 it stayed the same (128). These scores are to get a 9. It'll probably go up this year but who knows

paper 1 this year was substantially harder than previous papers imo. the grade boundaries will probably go down to 130-135 again this year

paper 1 this year was substantially harder than previous papers imo. the grade boundaries will probably go down to 130-135 again this year

hopefully. What did u find difficult?

the last question was pretty awful, and i didn't like the refraction one or the spring one either. this paper was mostly inference-based rather than based on the questions that constantly come up in exams (think terminal velocity etc) so a lot of easy marks weren't available. a lot of the questions had wierd wording or were just confusing on what to say. unless paper 2 is really easy the grade boundaries are for sure decreasing - i did 2023 paper 1p last night and it was substantially easier than this

Did the question on refraction have to do with critical angle? some people in my class said it did but I just calculated the refracted angle

idk i dont think it did?? u just had to use the critical angle = sin(i)/sin(r) equation to find the refracted angle

im pretty sure it was refraction for ray A and reflection for ray B cause i wouldnt expect a 6 marker on just refraction

im pretty sure it was refraction for ray A and reflection for ray B cause i wouldnt expect a 6 marker on just refraction

but then why would it reflect? i thought its a 6 marker bc u also have to explain why it is refraction and then explaing the denser medium and bending towrads the normal stuff??

Thanks so much sandyjones, that is what I did. Some people were saying it was reflected because of the calculation so I thought I messed up.

idk i dont think it did?? u just had to use the critical angle = sin(i)/sin(r) equation to find the refracted angle

that’s incorrect. the refractive index uses that equation, not critical angle. you had to find critical angle using sin(c) = 1/n to see that ray B went through TIR because its angle of incidence was larger than the critical angle

but how can it be tir when the light rays go into a denser medium?

icl i wrote nthn about the c angle i jst talked about each refractive angle and said since ray A was refracted steeper it bent more what mark could i get with that