ISBN-13: 9781499526561 / Angielski / Miękka / 2014 / 34 str.
ISBN-13: 9781499526561 / Angielski / Miękka / 2014 / 34 str.
This book contains data from an electric train moving on flat and inclined tracks. Graphs show position as the train is moved by electricity and gravity. Additional analyses examine the motion of train cars tipping. These graphs can be used for lesson plans by teachers and parents.