Learn about work, motion, force, friction and speed. Learn the 6 basic simple machine types (wheel and axle, pulley, lever, wedge, screw, inclined plane) and compound machines. Your purchase consists of 1 downloadable PDF file consisting of 42 pages of flashcards and 26 pages of quiz material. The flashcards are designed to be printed out and do not work as well when viewed on an electronic device. When printing flashcards, ensure you set your printer to your desired size cards, i.e. 5″x7″, 4