WHY? We take friction so much for granted, it is difficult to imagine a world without it. The design of almost every kind of transportation from automobiles to skateboards would have to be completely changed. Because we cannot live without friction, it is important to explore how friction affects motion. The force of friction between two surfaces is caused by microscopic high points between two materials bonding together. Friction always acts in the opposite direction of any applied force. Sir Isaac Newton's observations were key to our understanding of motion! ASSESSMENT: Can the student communicate what they observed?

Student is able to communicate how friction is always present in our lives and how it relates to Newton's First Law of Motion. Student is able to communicate most of the reasons how friction is always present in our lives and how it relates to Newton's First Law of Motion. Student is able to communicate some of the reasons how friction is always present in our lives. Student is able to communicate one of the reasons how friction is always present in our lives.

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