Chapter 3 Forces & Newtons Laws. 3.1- Forces Forces –What is a Force? –Force – –Measured in Newtons –Changing Motion- Contact ForcesAction-at-a-Distance.
Chapter 3. Newton’s 2 nd law 2 nd – an object accelerates in the direction of the net force acting upon it A= net force/Mass a= Fnet/m A force on an object.
Marc Masquelier How Airplanes Fly Forces. Your Ideas… What is an airplane? What are wings? A heavier-than-air aircraft kept aloft by the upward thrust.
Newton’s Laws The Study of Dynamics Isaac Newton Arguably the greatest physical genius ever. Came up with 3 Laws of Motion to explain the observations.
Flashback: Newtons Laws of Motion Sir Isaac Newton was a central figure in the Scientific Revolution during the 17 th century. His ideas went against.
Newtons Second Law: Rear End Collisions. Learning Objective Apply Newtons 1 st and 2 nd Law to automobile crashes Process Skill: Rewrite/Follow step-by-step.
Unit 2.1 Force and Motion Learning Goal (TEKS): Identify and describe the changes in position, direction, and speed of an object when acted upon by unbalanced.
Bellringer Insert Date CCSS: P.4E: Develop and interpret free-body force diagrams By the end of today, IWBAT… Develop and interpret free-body diagrams.
Physics Electrostatics: Coulomb’s Law – Force on a Third Charge Science and Mathematics Education Research Group Supported by UBC Teaching and Learning.
Circular Motion Kinematics of Uniform Circular Motion (Description of Uniform Circular Motion) Dynamics of Uniform Circular Motion (Why does a particle.
The conquest of Weightlessness Collection of Presentations Danail Obreschkow, Feb. 2006.
Chapter 4 Forces. Force- An action exerted on an object which may change the objects state of rest or motion. It is a Vector!