A3 Symbols, units and multipliersA. Practical and mathematical requirements
-- Core -- ✔︎ Use the multipliers M (mega), k (kilo), c (centi) and m (milli). length: symbol l, h, d, s, x; unit km, m, cm, mm area: symbol A; unit m², cm² volume: symbol V; unit m³, cm³, dm³ weight: symbol W; unit N mass: symbol m, M; unit kg, g time: symbol t; unit h, min, s density: symbol ρ; unit g / cm³, kg / m³ speed: symbol u, v; unit km / h, m / s, cm / s acceleration: symbol a; unit m / s² acceleration of free fall: symbol g; unit m / s² force: symbol F; unit N gravitational field strength: symbol g; unit N / kg moment of a force: unit N m work done: symbol W; unit J, kJ, MJ energy: symbol E; unit J, kJ, MJ, kW h power: symbol P; unit W, kW, MW pressure: symbol p; unit N / m², N / cm² temperature: symbol θ, T; unit °C, K frequency: symbol f; unit Hz, kHz wavelength: symbol λ; unit m, cm focal length: symbol f; unit m, cm angle of incidence: symbol i; unit degree (°) angle of reflection: symbol r; unit degree (°) angle of refraction: symbol r; unit degree (°) critical angle: symbol c; unit degree (°) potential difference / voltage: symbol V; unit V, mV, kV current: symbol I; unit A, mA e.m.f.: symbol E; unit V resistance: symbol R; unit Ω count rate: unit counts / s, counts / min half-life: unit s, min, h, days, weeks, years Physics Resources is independent and is not affiliated with or endorsed by Cambridge University Press & Assessment or Pearson Edexcel. Our questions are written for this site to match each course's content. They are not official exam board or past-paper questions.
