physics equations Flashcards
average speed, distance, time taken.
distance = average speed x time taken
acceleration, mass, force.
force = mass x acceleration
sin c, 1, n.
sin c = 1 / n
pressure, area, force.
pressure = force / area
momentum, velocity, mass.
momentum = mass x volume
mass, volume, density.
density = mass / volume
time taken, change in velocity, acceleration.
acceleration = change in velocity/ time taken
force, work done, distance moved.
work done = force x distance moved
energy transferred, work done.
energy transferred = work done
mass, g, height, gravitational potential energy.
gravitational potential energy = mass x g x height
1/2, kinetic energy, (speed)^2, mass.
kinetic energy = 1/2 x mass x (speed)^2
mass, weight, gravitational field strength.
weight = mass x gravitation field strength
force, moment, perpendicular distance from the pivot.
moment = force x perpendicular distance from the pivot.
current, charge, time.
charge = current x time
current, voltage, resistance
voltage = current x resistance
voltage, electrical power, current.
electrical power = voltage x current
frequency, wavelength, wave speed.
wave speed = frequency x wavelength
input (primary) voltage, primary turns,
output (secondary) voltage, secondary turns.
input (primary) voltage/ primary turns/ output (secondary) voltage = secondary turns
sin i, sin r, n.
n = sin i / sin r
efficiency, 100%, useful energy output, total energy output.
efficiency = (useful energy output / total energy output) x 100
Vp, Vs, Is, Ip.
Vp x Ip = Vs x Is (for 100% efficiency)
height, density, pressure, gravitational field strength.
pressure = height x density x gravitational field strength
