The first aim of the app is to help students to learn the physics equations they needed for the new science GCSE. Without the equations at their fingertips, they are at a huge disadvantage for in Physics exams.
The second aim of the app is to allow the students to practice using the equations in exam style questions and progress independently by giving support and feedback at every stage.
The models used to generate questions "know" how to answer the question so they know what needs to be done at each stage. The models can generate a similar question and show how to answer it as an example. They can understand different units and give useful feedback to answers. Once a question is answered, if the student is unsure, they can see a model answer and when they have learned from mistakes, they can try a similar question to check they have understood.