Great app to teach force, motion and simple machines. Developer's Description: Developing mechanical systems with moving parts is now easier than ever with Autodesk® ForceEffect Motion™. Autodesk® ForceEffect Motion™ brings engineering to the point of the problem with a mobile engineering app for simulating design concepts in the field, in the office or in the classroom.
Developer Description: Learn something new every day! Bring learning to your fingertips™ with the BrainPOP Featured Movie app for the iPad, iPhone, and iPod touch. Watch a different animated movie every day, then test your new knowledge with an interactive quiz - free!