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Forces and motion are at work all around you—when you kick a ball, ride a bike, or drop a book. But what exactly are forces? And how do they make things move? For thousands of years, scientists have been testing hypotheses about forces and motion and learning from the results of their experiments. These lead to more questions: Why do you speed up when you're biking down a hill? Why are heavier objects harder to pull? Why doesn't the moon float off into space? The answers may surprise you! Find out how forces and motion are at play with everything on Earth and beyond.
Forces and motion are at work all around you—when you kick a ball, ride a bike, or drop a book. But what exactly are forces? And how do they make things move?
Force and motion are all around us and help us move and do great things! Through a variety of vivid images and stunning facts, readers will explore how forces a
Presenting facts, figures and information on forces and motion, this title covers a range of topics including gravity, magnetic forces, measuring force and velo
This series provides an information library on the main aspects of physical science, with an emphasis on enquiry; answering the questions that children ask, add