Kinematics gives you the tools you need to describe motion. You don't address the causes of motion in Kinematics. The causes of motion are the domain of Dynamics, in which Newton's Laws are introduced. Kinematics uses mathematics to describe motion using the concepts of space and time.
For the MCAT, Kinematics is an important topic, both in itself and as a primary underpinning of Physics. Kinematics is one of the main areas from which the MCAT writers draw 'plug and chug' problems for the exam. Although there are only a few quantitative problems on a typical MCAT, one or two of them are frequently kinematics problems. In addition to practicing quantitative problems, you should encourage yourself in kinematics to imagine the model mechanical system, simple bodies moving in free space. Practice visualizing motion while conceptualizing displacement, velocity, and acceleration. Concentrate on building a mental space for mechanics as an imaginative skill, a capability that will help you throughout physics.
Conceptual Vocabulary Self-Test
Basic Terms Crossword Puzzle
Basic Puzzle Solution
Conceptual Vocabulary for Kinematics