Equations Flashcards
Weight Equation ?
Weight (N) = Mass (Kg) x Gravitational Field strength (N/Kg)
Work Done Equation ?
Work done ( J) = Force (N) x Distance (M)
Force applied to a spring Equation ?
Force applied to a spring (N) = Spring constant (N/M) x Extension (M)
Distance travelled Equation ?
Distance travelled (M) = speed (M/S) x time (S)
Acceleration Equation
Acceleration (M/s2) = Change in velocity ( M/S)
—————————————
Time taken (S)
2 = squared
Resultant Force Equation ?
Resultant Force ( N) = Mass (Kg) x Acceleration (M/s2)
2 = squared
Momentum Equation ?
Momentum (Kgm/s) = Mass (Kg) x Velocity (M/s)
Kinetic Energy Equation ?
Kinetic Energy ( J )= 0.5 x Mass (Kg) x speed (m/s2)
2 = squared
Gravitational potential energy Equation ?
Gravitational potencial energy ( J )= mass (kg) x gravitational field strength (N/Kg) x height ( M)
Power equation ( energy transfered) ?
Power ( W ) = energy transfered ( J )
———————————
Time ( S )
Power ( Work done) Equation ?
Power (W) = work done ( J )
———————–
Time (S )
Efficiency (Energy transfered) equation ?
Efficiency = useful output energy transfer ( J )
———————————————
Total input energy transfer ( J )
Efficiency ( power ) equation ?
Efficiency = useful power output ( J )
——————————–
Total power input ( J )
Wave speed equation ?
Wave speed (m/s) =frequency ( H ) x wavelength ( M )
Charge flow equation ?
Charge flow ( C ) = current ( A ) x time ( S )
Potencial difference equation ?
Potencial difference ( V ) = current ( A ) x resistance (ohms )
Power equation (potencial difference) ?
Power ( W ) = potencial difference (v) x current ( A )
Power (current) equation ?
Power ( W ) = current 2 (A) x Resistance (ohms)
2 = squared
Energy transferred equation ( red power ) ?
Energy transferred ( J ) = power ( W ) x time ( s )
Energy transferred ( charge flow ) equation ?
Energy transferred ( J ) = charge flow (C ) x potencial differnce ( V )
Density equation ?
Density ( kg/m3 )= mass ( Kg )
———-
Volume ( m3 )
3 = cubed
