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Summary A-level Physics data and formulae

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For use in exams from the June 2017 Series onwards DATA - FUNDAMENTAL CONSTANTS AND VALUES Quantity speed of light in vacuo permeability of free space permittivity of free space magnitude of the charge of electron the Planck constant gravitational constant the Avogadro constant molar gas cons...

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  • April 17, 2024
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Aqa physics




A-level Physics data and formulae
For use in exams from the June 2017 Series onwards
DATA - FUNDAMENTAL CONSTANTS AND VALUES
Quantit Symb Value Unit
ol s
y speed of light in
𝑐 3.00  108 m s–1
vacuo permeability of
𝜇0 4  10–7 H m–1
free space permittivity
𝜀0 8.85  10–12 F m–1
of free space
𝑒 1.60  10–19 C
magnitude of the charge of –34
ℎ 6.63  10 Js
electron the Planck constant –11
𝐺 6.67  10 N m2 kg–2
gravitational
𝑁A 6.02  1023 mol–1
constant the
𝑅 8.31 J K–1 mol–1
Avogadro constant
𝑘 1.38  10–23 J K–1
molar gas constant
σ 5.67  10–8 W m–2 K–4
the Boltzmann
𝛼 2.90  10–3 mK
constant the Stefan
constant 𝑚e 9.11  10–31 kg

the Wien constant 𝑒
1.76  1011 C kg–1
electron rest mass 𝑚e
(equivalent to 5.5 × 10–4
𝑚p 1.67(3)  10–27 kg
u)
𝑒
magnitude of electron charge/mass 9.58  107 C kg–1
𝑚p
ratio proton rest mass 1.67(5)  10–27
𝑚n kg
(equivalent to 1.00728 u)
𝑔 9.81 N kg–1
proton charge/mass ratio
𝑔 9.81 m s–2
neutron rest mass
(equivalent to 1.00867 u 1.661  10–27 kg
u)
gravitational field
strength acceleration
due to gravity atomic
mass unit
(1u is equivalent to 931.5 MeV)


ALGEBRAIC EQUATION GEOMETRICAL EQUATIONS
Aqa physics

, 2
arc length =r𝜃
quadratic equation  b  b  4ac
x circumference of circle = 2r
2a
ASTRONOMICAL DATA area of circle = r2
curved surface area of = 2rh
Body Mass/kg Mean
cylinder
radius/m
Sun 1.99 × 1030 6.96 × 108 surface area of sphere = 4r2
4
volume of sphere = r3
Earth 5.97 × 1024 6.37 × 106 3




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