Equations Flashcards
(22 cards)
Acceleration equation
Acceleration(m/s^2) = change in velocity / time
Speed equation
Speed(m/s) = distance / time
Weight equation
Weight(N) = mass * gravity (10)
Density equation
Density (g/cm^3) = mass / volume
Force equation
Force(N) = mass * acceleration
Hooke’s law
Force(N) = constant * extension F = kx
Moment equation
Moment(Mn) = force * distance
Work done equation
Work done(J) = force * distance
Power equation
Power(W) = energy / time
Pressure equation
Pressure(Pa) = force / area
Thermal capacity (energy transferred equation)
Energy transferred = mass * specific heat capacity * change in temperature
Wave speed
Wave speed(m/s) = frequency * wavelength
Refractive index
Refractive index = speed to light in a vacuum / speed of light in the medium
Charge equations
Charge(C) = current * time
Charge(C) = energy / voltage
Resistance equation
Resistance(Ohms) = Potential difference / current
R = V / I
Power equation(circuits)
Power(W) = potential difference * current
P = IV
Energy equations(circuits)
Energy(J) = power * time
Energy = voltage * charge
Resistance in series
Total resistance = resistance + resistance etc…
Resistance in parallel
Total resistance = 1 / resistance in circuit
Gravitational potential energy
GPE(J) Mass * gravity * height
Kinetic energy
Kinetic energy(J) = 1/2mass * velocity^2
KE = 1/2MV^2
Pressure in liquid
Pressure = density * gravity * height
p=dgh
