GCSE Physics Formulae Higher 0.0 / 5 PhysicsEquations and FormulaeGCSEOCR Created by: GSidhuCreated on: 23-05-18 18:25 Density (kg/m3)= mass(kg)/volume(m3) or p=m/v 1 of 32 Mass (kg)= density(kg/m3)x volume(m3) or m=pxv 2 of 32 Volume (m3)= mass(kg)/density(kg/m3) or v=m/v 3 of 32 Change in thermal energy (J)= mass(kg) x specific heat capacity(J/kg oC) x change in temperature(oC) or △E=mc△T 4 of 32 Thermal energy for a change of state (J)= mass(kg) x specific latent heat(J/kg) or E=mL 5 of 32 Specific heat capacity (J/kg oC)= change in thermal energy(J) / (mass(kg) x change in temperature(oC) 6 of 32 Distance travelled (m)= speed(m/s) x time(s) or s=vt 7 of 32 Acceleration (m/s2)= change in velocity(m/s) / time(s) or a=△v/t 8 of 32 Kinetic energy (J)= 0.5 x mass(kg) x speed(m/s)2 or ek=0.5mv2 9 of 32 Force (N)= mass(kg) x acceleration(m/s2) or f=ma 10 of 32 Momentum (kg m/s)= mass(kg) x velocity(m/s) or p=mv 11 of 32 Work Done (J)= force(N) x distance(m)(along the line of action of the force or w=f△s 12 of 32 Power (W)= work done(J) / time(s) or p=w/t 13 of 32 Force exerted by a spring (N)= extension(m) x spring constant(N/m) or f=k△x 14 of 32 Gravity force (N)= mass(kg) x gravitational field strength (g N/kg) or w=mg 15 of 32 (in a gravity field) potential energy (J)= mass(kg) x height(m) x gravitational field strength (g N/kg) or ep=mgh 16 of 32 Pressure (Pa)= force normal to a surface (N) / area of that surface (m2) or p=f/a 17 of 32 Moment of a force (Nm)= force(N) x distance(m) (normal to direction of the force) or m=fd 18 of 32 Charge flow (C)= current (A) x time(s) or q=it 19 of 32 Potential difference (V)= current (A) x resistance (Ω) or v=ir 20 of 32 Energy transferred (J)= charge (C) x potential difference (V) or E=QV 21 of 32 Power (W)= potential difference(V) x current(A) = (current(A))2 x resistance(Ω) or P=IV=I2R 22 of 32 Energy transferred (J,kWh)= power (W,kW) x time (s,h) or △E=Pt 23 of 32 Wave speed (m/s)= frequency (Hz) x wavelength (m) or v=Fλ 24 of 32 Efficiency= useful output energy transfer (J) / input energy transfer (J) or EF= △Eu/△Et 25 of 32 Pressure (Pa) x volume (m3)= constant (for a given mass and at a constant temperature) or Pv=k 26 of 32 Pressure due to a column of liquid (Pa)= height of column (m) x density of liquid (kg/m3) x gravitational field strength g(N/kg) 27 of 32 (Final velocity (m/s))2 - (initial velocity (m/s))2= 2 x acceleration (m/s2) x distance (m) or v2= u2 + 2as 28 of 32 Energy transferred in stretching (J)= 0.5 x spring constant (N/m) x extension (m))2 or Eel = 0.5k△x 29 of 32 Force on a conductor (at right angles to the magnetic field) carrying a current (N)= magnetic field strength (T) x current (A) x length (m) or F=BIL 30 of 32 Potential difference across primary coil (v) / potential difference across secondary coil (v)= number of turns in primary coil / number of turns in secondary coil or Vp/Vs = Np/Ns 31 of 32 Potential difference across primary coil (v) x current in primary coil (A)= potential difference across secondary coil (v) x current in secondary coil (A) or VpIp = VsIs 32 of 32

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