Edexcel A Level Physics Paper 3: 9PH0 03 - 15th June 2023 [Exam Chat]

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i got a really small number for my maximum velocity. what di d everyone esle get?

Original post by Isobeldib

i got a really small number for my maximum velocity. what di d everyone esle get?

0.756 ms-1

Original post by Kukelele

How did people do the max v for the trolley, I ended up using the rms equation?

I have no idea about a rms equation but I got ~0.75 ms^-1

Original post by Veramis870

I have no idea about a rms equation but I got ~0.75 ms^-1

i got that too

Edexcels physics department- the absolute bunch of legends

for the log graph one did anyone get y intercept at 3.08 and gradent as 0.21 ??

Original post by Adamsmob

No the current doesnt provide the energy. The current heats up the electrode, the heat energy transfers to the neon atoms and causes thermionic emission of photons from the neon atoms.

No way I got thag wrong then. Lost at least 2 marks

Original post by robbie1172

for the log graph one did anyone get y intercept at 3.08 and gradent as 0.21 ??

idk gradient but i got y intercept as 3.09

Original post by robbie1172

for the log graph one did anyone get y intercept at 3.08 and gradent as 0.21 ??

You had to do e^y intercept but yeah I got 3.07 so that's good

what about the young modulus of Brass Q.
i had no idea why they used a test wire and weights
i got the young modulus to be like 101 GPA or something ?

Sounds very similar to what I got

Original post by robbie1172

what about the young modulus of Brass Q.
i had no idea why they used a test wire and weights
i got the young modulus to be like 101 GPA or something ?

What was the answe for the work function was it ceasium or potassium

It was caesium

Was the neon question about black bodys or about excited electrons and energy levels.

Original post by FKZ8

Was the neon question about black bodys or about excited electrons and energy levels.

Energy levels 🤣🤣

Was it about neon absorbing electrons and emitting photons

Original post by nznznz

No way I got thag wrong then. Lost at least 2 marks

With a bit of luck you'll still get 4/6 if you talked about how photons are emitted correctly

that's what I wrote about but some people I know wrote about how electrons cause the neon to heat up.

Original post by Ugonguyen

Energy levels 🤣🤣

(edited 10 months ago)

Original post by NAJEEB12891

It was caesium

How you got that

for brightness of lamp what did everyone get. I put it stayed the same

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