##### Apparent Weight

Calculating the apparent weight of a person in an elevator accelerating either up or down.

Fg=mg, Fnet=ma

##### Converting Energy Units

Converting energy values in joules for light into energy values in electron-volts.

E(eV) = E(J)/1.6 x 10-19

##### Coulomb's Law

Calculating the distance between two positive particles of known charge when a force between them is given.

r2=kQ1Q2/F

##### Critical Angle

Calculating the critical angle for light passing from one substance to another substance, with refractive indexes given.

sin Θc = n2/n1

##### De Broglie Wavelength

Calculating the De Broglie wavelength of an object from its given mass and velocity.

##### Electron Gun Equation

calcaulting the final speed of an electron that is accelerated across a potential difference.

qV=0.5mv2

##### Force and Magnetic Fields

Calculating the force experienced by a charge particle moving through a magnetic field.

##### Gravitational Attraction: Large

Calculating the force of attraction between two large objects from a given distance and masses.

Fg = G (m1m2)/r2

##### Gravitational Attraction: Small

Calculating the force of attraction between two small objects from a given distance and masses.

Fg = G (m1m2)/r2

##### Gravitational Field Strength

Calculating the gravitational field strength at various heights above planets in the Solar System.

##### Kinetic Energy of Photoelectrons

Calculating the kinetic energy (in eV) of photoelectrons emitted from a material by ultraviolet light.

##### Length Contraction

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

##### Orbital Data and Mass

Using the orbital data of a natural satellite to calculate the mass of the planet that it is orbitting.

##### Orbital Speed

Calculating the orbital speed of an object around a large body using the mass of the object and the orbital radius.

v2=GM/r

##### Photon Momentum

Calculating the momentum of a photon from its given wavelength in nanometres.

##### Planck's Equation

Using Planck's equation to calculate the energy of a photon from a given wavelength.

E=hf

##### Refractive Index

Calculate the refractive index of a material from the speed of light in a vacuum and the speed of light through the material.

n1v1=n2v2

##### Wave Equation

Using the wave equation to calculate the frequency of a particular colour of visible light with a known wavelength.

c = f λ

##### Work Function

Calculating the work function in joules for a metal from its given threshold frequency.

φ = hf0

##### Young's Experiment

Calculating the wavelength of light from data obtained from Young's Double Slit Experiment.