Equations Flashcards
Equation for weight
Mass X Gravitational field strength
Equation for work done
Force X distance
Equation for force applied to a spring
Spring constant X extension
Equation for distance travelled
Speed x time
Equation for acceleration
Change in velocity/time taken
Equation for resultant force
Mass X acceleration
Equation for momentum
Mass X velocity
Equation for kinetic energy
0.5 X mass X (speed)2
Equation for gravitational potential energy
Mass X gravitational field strength X height
Equations for power
Energy transferred/ time
Work done/ time
Potential difference X current
(Current)2 X resistance
Equations for efficiency
Useful output energy transfer/ total energy transfer
Useful power output/ total power input
Equation for wave speed
Frequency X wavelength
Equation for charge flow
Current X time
Equation for potential difference
Current X resistance
Equations for energy transferred
Power x. Time
Charge flow x potential difference
