A free program for Android, by PanaTech Apps.

PC Notes Physics X will be your best study buddy when reviewing Physics. Covering more than a hundred topics, this app can help students prepare for their upcoming exams. It is suitable for secondary students, and it is helpful for Physics teachers as well. Here, you will find tutorials, possible exam questions, and a dictionary for various topics.

These topics include Measurement, Kinematics of Linear Motion, Motion and Force, Vector, Work, Power and Energy, Simple Machines, Nature of Light and Electromagnetic Spectrum, Waves and Sound, Magnetism and Electromagnetism, Electronics, Nuclear Physics, Heat, Electricity, Equilibrium, and more. It has a simple interface, making it easy to use and navigate.