Physics Equations Flashcards
What is the equation to calculate a moment?
Force(N) x distance (m)
What are the equations for acceleration?
Acceleration = (final velocity - initial velocity)/time
What is the Equation for momentum?
Momentum(kg m/s^2) = mass(kg) x velocity (m/s)
What is the equation for work done?
Work done( J ) = Force(N) x distance (M)
What is the equation for speed?
Speed (m/s) = distance/time
What is the equation for Gravitational Potential Energy?
Mass(kg) x gravitational field strength(N/Kg) x height(M)
What is the equation for kinetic energy?
Kinetic energy = 1/2 x mass(kg) x velocity^2(m/s)
What is the equation for power?
Power(W) = energy transferred(J)/time taken for energy transferred (s)
What is the equation for Efficiency?
Efficiency = useful power output/ total power input
What is the equation for energy transferred?
Energy Transferred(heat) = mass(kg) x SHC(J/kg degrees celcius) x temperature change
What is the equation for Specific Heat Capacity?
SHC(J/kg/degrees) = energy(J)/mass(kg) x temperature change
Other equation for SHC?
SHC = power x time / mass x temp change
What is the equation for wave speed?
Wave speed = frequency x wavelength
What is the equation for period?
Period = 1/frequency
What is the equation for frequency
Frequency = 1/period
What is the equation for object distance?
Object distance = 1/2 x speed of ultrasound wave x time
Equation for density?
Density = mass / volume
What is the equation for the specific latent heat of fusion?
Specific latent heat of fusion(J/kg) = energy / mass
What is the equation for the specific latent heat of vapourisation?
Specific latent heat of vaporisation = Mass / Energy
What is the equation for Magnification?
Magnification = image height/ object height
What is the equation for pressure?
Pressure = Force / Area
What is the equation for current?
Current = voltage / resistance
What is the equation for elastic potential energy?
Elastic potential energy = 1/2 x spring constant x extension^2
