This is a kids book about relative motion...Yes a kids book about relative motion. What is relative motion?
The laws of physics which apply when you are at rest on the earth also apply when you are in any reference frame which is moving at a constant velocity with respect to the earth. For example, you can toss and catch a ball in a moving bus if the motion is in a straight line at constant speed.
The motion may have a different appearance as viewed from a different reference frame, but this can be explained by including the relative velocity of the reference frame in the description of the motion.[http://hyperphysics.phy-astr.gsu.edu/hbase/relmot.html]
So this is a physics book for kids. It takes a relatively (pun intended) complex physics concept and makes it fairly simple in a cute kids story. It starts out by defining motion and relative motion and then moves into a story about Jimmy and his relative motion the the earth and to a bus.I like science. I work in science, so I really like this little kids e-book. I think my son would like it as well. He is really into science and engineering and wants to know how everything works. A perfect book to explain a concept that some adults have a hard time grasping, and on Amazon.com it's only $0.99!