EQUATION Flashcards
weight
mass x 9.8
work done
force x distance
distance travelled
speed × time
kinetic energy
1/2 x mass x v2
gravitational potential energy
mass x gravitational field strength x change of height
elastic potential energy
1/2 x k(spring constant) x extension2
power
energy transferred/ time taken
efficiency
useful output energy transferred by device/ total input energy supplied to device x 100
energy transferred (t m)
m x specific heat capacity x change in temperature
potential difference (volt)
energy transferred / charge (coulombs)
resistance (ohm)
potential difference / current (amperes)
power supplied
current x potential differenceformula for power in terms of curret and resistanc
power (current and hom)
current2 x resistance
charge flow
current x time
energy transferred in temrs of power
power x time
efficiency in terms of power
output power/ input power x 100
density
mass/ volume
pressure
force / area
momentum
mass x velocity
two formulas for change in energy , matter
m x specific heat capacity x change in temperature
m x specific latent heat
pressure for a fixed room temperature (g) or mass
constant/volume
moment of a force
force x distance
acceleration
change in velocity/ time taken
speed
distance/time
newtons second law
mass x acceleration
force (change in momentum)
change in momentum/time taken
force (extension)
spring constant x extension
