Audience: Students; Grades: 6-12; Subject Areas: Science. (2000) Shows how force is calculated as well as the effect of friction on force. Discusses and demonstrates each of Newton's Laws of Motion and the law of universal gravitation. Includes a ten-question video quiz. For the teacher's guide go to: https://drive.google.com/folderview?id=0B9ZT7PYcIjLfOVZsbGs3WTdsTGM&usp=sharing