Equations Flashcards
Equation for work done
Work done (J)
= force (N) x distance (m)
Equation for work done
Work done (J)
= Power (W) / Time (s)
Equation for wave speed
Wave speed (m/s) =
Frequency (Hz) x wavelength (m)
Equation for momentum
Momentum (kg m/s)
= mass (Kg) x velocity (m/s)
Equation for resultant force
Resultant force (N) = mass (Kg) x acceleration (m/s/s)
Equation for period
Period (s) = 1 / frequency (Hz)
equation for acceleration
Acceleration (m/s/s) =
change in velocity (m/s) / time taken (s)
Equation for uniform acceleration
(Final velocity) ² - (initial velocity)²
=2 x acceleration x distance
The unit for final and initial velocity?
M/s
The unit for acceleration?
M/s ²
The unit for distance?
m
Equation for distance travelled?
Distance travelled (m) =
Speed (m/s) x time (s)
Equation for force?
Force (N) = spring constant (N/m) x extension (m)
Equation for elastic potential energy?
Elastic potential energy (J) = 0.5 x spring constant (N/m) x (extension) ² (m)
Equation for weight?
Weight (N) = mass (kg) x gravitational field strength (N/kg)
Equation for energy for a change in state?
Energy for a change in state (J) = mass (kg) x specific latent heat (J/kg)
Equation for change in thermal energy?
Change in thermal energy (J) = mass (kg) x specific heat capacity (J/kg) x temperature change (°C)
Equation for density?
Density (kg/m ³) = mass (kg) / volume (m ³)
What is the equation for pressure
Pressure (P, pascals) = force normal force to that surface (F, newtons) / area of that surface (A, square metres)
Equation for period?
1 / frequency
Equation for frequency
1 / period
Equation for wave speed
Wave speed ( v, metres per second) = frequency (f, Hertz) x wavelength (λ, metres)
How many joules Is a newton metre
1 joule is equal to one newton metre
How many millisieverts (mSv) are equal to 1 sievert (Sv)
1000 millisieverts
