TABLE OF CONTENTS CHAPTER 1 Momentum on the Playground 5 CHAPTER 2 What Is Momentum 9 CHAPTER 3 Momentum and Collisions 17 SCIENCE IN ACTION Momentum with Scooter Boards 26 Focus on Momentum 28 Glossary 30 To Learn More 31 Index 32
CHAPTER 1 MOMENTUM ON THE PLAYGROUND Andre is at the playground He climbs the stairs to the top of the slide Then he stands and waits until it is his turn to go down While Andre is waiting he is at rest This means he is not moving Slides are fun because of how your momentum changes on the way down
