Calculating the apparent weight of a person in an elevator accelerating either up or down.
Fg=mg, Fnet=ma Example
Converting energy values in joules for light into energy values in electron-volts.
E(eV) = E(J)/1.6 x 10-19 Example
Calculating the distance between two positive particles of known charge when a force between them is given.
Calculating the critical angle for light passing from one substance to another substance, with refractive indexes given.
sin Θc = n2/n1 Example
Calculating the De Broglie wavelength of an object from its given mass and velocity.
calcaulting the final speed of an electron that is accelerated across a potential difference.
Calculating the force experienced by a charge particle moving through a magnetic field.
Calculating the force of attraction between two large objects from a given distance and masses.
Fg = G (m1m2)/r2 Example
Calculating the force of attraction between two small objects from a given distance and masses.
Calculating the gravitational field strength at various heights above planets in the Solar System.
Calculating the kinetic energy (in eV) of photoelectrons emitted from a material by ultraviolet light.
Calculating the length of a very fast moving object with a given length as seen by a stationary observer.
L = L0(1 - (v2/c))1/2 Example
Using the orbital data of a natural satellite to calculate the mass of the planet that it is orbitting.
Calculating the orbital speed of an object around a large body using the mass of the object and the orbital radius.
Calculating the momentum of a photon from its given wavelength in nanometres.
Using Planck's equation to calculate the energy of a photon from a given wavelength.
Calculate the refractive index of a material from the speed of light in a vacuum and the speed of light through the material.
Using the wave equation to calculate the frequency of a particular colour of visible light with a known wavelength.
c = f λ Example
Calculating the work function in joules for a metal from its given threshold frequency.
φ = hf0 Example
Calculating the wavelength of light from data obtained from Young's Double Slit Experiment.
Terms and Conditions of The Nth Question