Physics Formulae Flashcards
Weight (N)
mass (kg) x gravitational field strength (N/kg)
Work Done (J)
Force (N) x Distance (M)
Force applied to a spring (N)
Spring constant (N/m) x Extension (M)
Distance travelled (m)
Speed (m/s) x Time (s)
Acceleration (m/s^2)
Change in velocity (m/s) / Time (s)
Resultant force (N)
Mass (Kg) x Acceleration (m/s^2)
Momentum (kgm/s)
Mass (Kg) x Velocity (m/s)
Kinetic Energy (J)
0.5 x Mass (Kg) x Velocity^2 (m/s)
Gravitational Potential Energy (J)
Mass (Kg) x GFS (g) x Height (m)
GFS = Gravitational Field Strength
Power (W)
Using Transfer
Energy Transfered (J) / Time (S)
Efficiency (%)
Using Transfer of Energy
( Useful output energy transfered (J) /
Total input energy transfered (J) ) x 100
Efficiency (%)
Using Power
( Useful power output (J) /
Total power output (J) ) x 100
Wave speed (m/s)
Frequency (Hz) x Wavelength (m)
Charge Flow (C)
Current (A) x Time (S)
Potential difference (V)
Current (A) x Resistance (Ω)
Power (W)
Using potential difference
Potential difference (V) x Current (A)
Power (W)
Using current
Current2 (A) x Resistance (Ω)
Energy Transfered (J)
Using charge
Charge Flow (C) x Potential difference (V)
Density (kg/m^3)
Mass (Kg) / Volume (m^3)
Moment of a force (Nm)
Force (N) x Distance (m)
Pressure (Pa)
Force (N) x Area (m^2)
Power (W)
Using Work
Work Done (J) / Time (S)
Energy transfered (J)
Power (W) x Time (S)
