# equations deck Flashcards

average speed, distance and time

speed = distance ÷ timespeed = distance⁄time

force, mass and acceleration

force = mass x acceleration

acceleration, change in velocity and time taken

acceleration = change in velocity ÷ time taken

density, mass and volume

density = mass ÷ volume

work done, force and distance moved

work done = force x distance moved

energy transferred and work done

energy transferred = work done

kinetic energy, mass and speed

kinetic energy = 1/2 x mass x speed2

gravitational potential energy, mass, g and height

gravitational potential energy = mass x g x height

weight, mass and gravitational field strength

weight = mass x gravitational field strength

pressure, force and area

pressure = force ÷ area

moment, force and perpendicular distance from pivot

moment = force x perpendicular distance from pivot

charge, current and time

charge = current x time

voltage, current and resistance

voltage = current x resistance

wave speed, frequency and wave length

wave speed = frequency x wave length

refractive index, angle of incidence, angle or refraction

n = sin i ÷ sin r