Write up template (use with care! your investigation might follow a different logic).
Ideas for investigations
Uncertainties and errors (See also analysis section)
Logger Pro is great for video analysis and graphing, and it also works with all our sensors. It allows you to do max-min lines and curve fitting very easily. See here for a tutorial on this.
Free. It allows you to create 2D simulations. A useful thing to do in your IA when you are struggling to compare your findings with accepted science (conclusion part).
GeoGebra and Desmos are good for visualising equations and physics phenomena. Here are some useful interactive demos made in Geogebra. Useful for when you are trying to make a prediction.
Educational applets to help visualize various concepts physics.
A collection of physics models to study key concepts and experiments.