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Name ____________________ per____ date_______ mail box ________ Most of you can recite Newton’s First Law of Motion; The Law of Inertia quite well, but how many of you really know what it means. Or perhaps you know the meaning, but you struggle to use it in a sentence. This task is required by your essay assignment. Let’s make sure you know how. Dictionary definition (Physics) inertia noun inertial adjective a. the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force. b. the tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external force c. a similar property of other physical measurement that resists change Have you ever been riding in a car when the driver stopped suddenly? What happen to your body? Did it feel as though your body continued to move forward? Did you feel the safety belt push back against your chest? In the car, your body was in motion, traveling at the same speed as the car and so you and the car had the same relative inertia. The car’s inertia may have resisted change, but was ultimately stopped by the unbalanced force of the breaks. Your body’s inertia however, remained unchanged for only a moment. The inertial force of motion continued moving you forward until, your body was stopped by the safety belt. 1) Why do you suppose wearing seat belts is a law? Use the term inertia in a sentence. (write) _____________________________________________ ___________________________________________________________ Inertia Roller Coaster Front Seat POV Forest Park China https://youtu.be/hA0XmrE4Yv0 How will you relate inertia to your rollercoaster? Should your rollercoaster have some sort of restraining device, harness or safety belt system? 2) Compose a sentence related to a rollercoaster using the term inertia (write) _____________________________________ _____________________________________ _____________________________________ ___________________________________________________________ THINK – PAIR – SHARE 1) & 2) What does this old time roller coaster lack?