physics Flashcards
(22 cards)
kinetic energy formula
1/2 x mass x speed^2
gravitation potential energy formula
mass x gravitational field strength x height
power formula (energy)
work done / time taken = energy transferred / time taken
efficiency formula
useful energy output / total energy output
charge flow formula
charge flow = current x time
potential difference formula
potential difference = current x resistance
total resistance formula
resistance of component 1 + resistance of component 2
power formula (electricity)
power = current x potential difference
power formula (electricity 2)
power = (current)^2 x resistance
energy transferred formula (electricity)
energy transferred = power x time
energy transferred formula (electricity 2)
energy transferred = charge flow x potential difference
density formula
density = mass / volume
weight formula
weight = mass × gravitational field strength
work done formula
work done = force × distance
force formula
force = spring constant x extension
moment of a force formula
moment of a force = force x distance
pressure formula
pressure = force normal to a surface / area of that surface
distance travelled formula
distance travelled = speed x time
acceleration formula
acceleration = change in velocity / time taken
resultant force formula
resultant force = mass x acceleration
momentum formula
momentum = mass x velocity
wave speed formula
wave speed = frequency x wavelength
