TABLE OF CONTENTS CHAPTER 1 Torque 4 CHAPTER 2 Newton's First Law 12 CHAPTER 3 Friction 18 ACTIVITIES TOOLS Try This 22 Glossary 23 Index 24 To Learn More 24
CHAPTER 1 TORQUE Have you ever spun a hula hoop around your waist Could you keep it going Or did it fall down right away 4 CHAPTER 1
Hula hoops spin or fall based on the laws of physics Physics is the science that explores matter and how it moves 5 CHAPTER 1
