7407 2 - Study guides, Class notes & Summaries

2023 AQA AS PHYSICS 7407/2 Paper 2 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]

AQA AS PHYSICS 7407/2 Paper 2 2021 MS. MARK SCHEME – AS PHYSICS – 7407/2 – JUNE 2021 6 Question Answers Additional Comments/Guidance Mark AO 01.1 smooth line drawn within half grid square of points minimum between 32.6 and 32.8 cm 2 AO3-1a Question Answers Additional Comments/Guidance Mark AO 01.2 value of their minimum (cm) Within a half grid square 1 AO3-1b Question Answers Additional Comments/Guidance Mark AO 01.3 doubles 0.2 OR calculates percentage uncertainty for 0.2 (hal...

AQA AS PHYSICS 7407/2 Paper 2 Mark scheme June 2022 Version: 1.0 Final

0 1 . 2 A metal wire of diameter d box is held in the gap between the anvil and the spindle. Just before the reading of d is taken, the gap is closed using the ratchet and not the thimble. Explain why the gap is closed in this way. [1 mark] 0 1 . 3 The mass per unit length μ of the metal wire is given by 2 4 μ = πρd where ρ is the density of the metal. Values of d and μ are used to calculate ρ. The percentage uncertainty in d is 1.2%. The percentage uncertainty in μ is...

AQA AS PHYSICS 7407/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022

0 1 A strong interaction between a negative kaon (K− ) and a proton (p) produces an omega-minus (Ω−) particle, a neutral kaon (K0 ) and an unidentified particle Y. The interaction is: K− + p → Ω− + K0 + Y Table 1 contains information on the particles in this interaction. 0 1 box . 3 Suggest how energy is conserved in this interaction. Refer to the rest energies of the particles in Table 1. [2 marks] The quark structure of the Ω− particle is sss. The Ω− is unst...