Equations Flashcards
(21 cards)
Weight
Weight=Mass x gravitational field strength
Work done
= Force x distance
Force applied to a string
= spring constant x extension
Distance travelled
= speed x time
Acceleration
= change in velocity/time taken
Resultant force
= mass x acceleration
Momentum
= mass x velocity
Kinetic energy
=0.5 x mass x speed
gravitational potential energy
= mass x gravitational field strength (g) x height
Power
= work done/time
Power
Energy transferred/time
efficiency
useful output energy transfer/
total input energy transfer
efficiency
useful power output/
total power input
wave speed
= frequency x wavelength
charge flow
Current x time
Potential difference
Current x resistance
Power
Potential difference x current
Power
(Current)2 x resistance
Energy transferred
Power x time
Energy transferred
Charge flow x potential difference
Density
Mass/volume
