Physics E=kT or E=3/2 kT - The Student Room
Jul 6, 2024 · I'd say you probably want to be using E =3/2 kT in most cases at A-level since you won't be dealing with non-ideal gases. Reply 2. 6 years ago. A. Stowupland1. 4. E=KT is used for finding orders of magnitude for the average energy, whereas E=3/2KT gives a …
A level Physics simple MCQ - The Student Room
Jun 21, 2024 · 1) Equate energies, and let d = h. change in mgh = change in 0.5mv^2 (ignoring pos/neg) -Try it from here. I will post the full solution at the bottom for you (goes for all of them) 2) Efficiency = 100%* (Useful energy out)/ (Total energy in) Consider 1 second: Energy in = 100J, as Power = 100J/s.
Physics E=mc^2 - The Student Room
Feb 27, 2018 · Physics E=mc^2. A. MrToodles4. 10. The present mass of the Sun is 2.0 × 10^30 kg. The Sun emits radiation at an average rate of 3.8 × 10^26 J s–1. Calculate the time in years for the mass of the Sun to decrease by one millionth of its present mass. From markscheme: " …
how was E=P^2/2m derived - The Student Room
Jun 14, 2024 · well let me simplify how the equation was derived: you know that P=mv and Ek=1/2 m(v^2) Therefore, make v the subject in the momentum equation you will have v=P/m substitute this in to the kinetic energy equation for value of v...you will now have Ek=1/2m(p/m)^2 if you solve that you get: Ek= 1/2m(p^2)/(m^2) you can now see that one m cancel out with the other and you are left with Ek= (p^2)/2m
A-level Physics grade boundaries - The Student Room
Aug 15, 2024 · How the A-level Physics grade boundaries have been set by AQA, Edexcel, OCR and Eduqas. Once your A-level exam papers have been marked, grade boundaries are used to translate that mark into an A-level grade. Those grade boundaries change every year. Students will find some papers harder than others, and so exam boards will keep things fair for ...
PHYSICS- Factor and percentage changes- URGENT HELP!!!!
Jun 17, 2024 · Edexcel A Level Physics Paper 3: 9PH0 03 - 17th June 2024 [Exam Chat] Physics question; Are my grades good enough for Oxford? Geography Paper 2 Section A; Lse urgent ‼️ ‼️‼️‼️‼️‼️; Edexcel GCSE Physics Paper 1 Higher (1PH0/1H) - 22nd May 2024 [Exam Chat] Urgent help maths question
Cognito- is it good for GCSEs - The Student Room
May 4, 2024 · OP. 11. Original post by kitty15. I used cognito videos to learn content and got a 9 in bio and chem, and 8 in physics and maths. I totally agree, it shouldn't be used as the only resource. It’s very important to be doing past papers and questions e.g physics and maths tutor. The cognito site also has questions by topic!
Isaac Physics - Area Under Graphs - The Student Room
For E the area under the graph is change in momentum as impulse (Ns) = change in momentum (kgm/s). Convert micro seconds to seconds and kilo newtons to newtons. I tried doing that and got the answer as 1.4185x10^-3 but it wasn't right.
V= E - I r and E=IR - The Student Room
Jun 15, 2023 · Physics A G482 EWP Unofficial mark Scheme; Urgent: A Level physics help! Edexcel A Level Physics Paper 3: 9PH0 03 - 15th June 2023 [Exam Chat] A level physics Electricity question (5) Politics and IR with an interest in economic; A level physics electricity question (7) Higher Physics Theory; Quick multiple choice question
Maths or Physics degree - The Student Room
Jan 24, 2021 · Additionally, as Sinnoh mentioned, IF you want to do maths degree, Its Crucial and recommended you study FM (particularly the FP1 and FP2). because this sorta helps reduce the impact of the jump from a-level to a degree. FM is also useful for physics because there is a LOT (A LOT) of maths.