Studied by 1 person
speed
speed = distance/time
acceleration
acceleration = change in velocity/time
(final speed)2
(final speed)2 = (initial speed)2 + 2 x acceleration x distance moved
force
force = mass x acceleration
weight
weight = mass x gravitational field strength
momentum
momentum = mass x velocity
force
force = change in momentum/time taken
moment
moment =
force x perpendicular distance from pivot
orbital speed
orbital speed =
(2 x pie x orbital radius)/time period
voltage
voltage = current x resistance
charge
charge = current x time
energy transferred
energy transferred = charge x voltage
power
power = current x voltage
energy transferred
energy transferred =
current x voltage x time
wave speed
wave speed = frequency x wavelength
frequency
frequency = 1/time
refractive index
n = sin(i)/sin(r)
critical angle
1/refractive index
1/n
density
density = mass/volume
pressure
pressure = force/area
pressure difference
pressure difference = height x density x gravitational field strength
energy transferred/ change in thermal energy
change in thermal energy =
mass x specific heat capacity x change in temp.
work done
work done = force x distance moved
gravitational potential energy
GPE = mass x gravity x height
kinetic energy
kinetic energy = ½ x mass x speed2
power
power = work done/time taken
