PPT-Acceleration, Force, and Newton’s Laws

Acceleration Force and Newtons Laws Demonstration Watch what happens when I bounce a tennis ball on the desk What happens to its position Direction What happens to its speed What happens to its velocity. Objects have a property called . inertia . which causes them to resist . changes. in their motion (Newton’s1. st. Law or Galileo’s law of inertia). .  . if it is at rest, it stays at rest.  if it is moving, it keeps moving with constant velocity. Building . Science Champions . In thought. Which of the following do you think would deliver a greater force when colliding with a wall? A golf ball moving at 70 . m/s. or a baseball moving at 50 . Adam Grigsby and Harrison McCroskey. 3. rd. Block. 10/3/14. Newton’s First Law of Motion. An object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force. . Motion. Lesson 15. February 8. th. , 2011. Newton’s Second Law of Motion. If the external force on an object is not zero, the objet accelerates in the direction of the net fore. The magnitude of the acceleration is directly proportional to the net force and inversely proportional to the objects mass. . Objects have a property called . inertia . which causes them to resist . changes. in their motion (Newton’s1. st. Law or Galileo’s law of inertia). .  . if it is at rest, it stays at rest.  if it is moving, it keeps moving with constant velocity. Chapter 5. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 5-1. Newton's First and Second Laws. 5.01. Identify that a force is a vector quantity and thus has both magnitude and direction and also components.. Objects have a property called . inertia . which causes them to resist . changes. in their motion (Newton’s1. st. Law or Galileo’s law of inertia). .  . if it is at rest, it stays at rest.  if it is moving, it keeps moving with constant velocity. nd. Law of Motion. Newton’s 2. nd. Law of Motion:. . acceleration of an object is in the same direction as the net force on the object. Newton’s 2. nd. Law of Motion . connects . force. , . mass. Forces. We have learned that forces . either pushes or pulls.. They come in many varieties:. Gravity & Normal. Kinetic & Static Friction. Electrical & Magnetic. Air resistance. Tension. Nuclear Force. Motion – Day #2. Newton’s Third Law. “Every action has an opposite and equal reaction”.. If one object exerts a force on a second object, the second object exerts the exact same force on the first but in the opposite direction.. Objects have a property called . inertia . which causes them to resist . changes. in their motion (Newton’s1. st. Law or Galileo’s law of inertia). .  . if it is at rest, it stays at rest.  if it is moving, it keeps moving with constant velocity. Force. - a . push. or . pull . A . Force . 1. gives. . energy . to objects. 2. causes a. . change . in motion, such as:. . Starting. Speeding Up. Changing Direction. Stopping. Slowing Down. (Note: all of these are forms of . LAWS OF MOTION Newton ’ s First Law an object at rest remains at rest and an object in motion maintains its velocity (stays in motion) unless it experiences an unbalanced force (outside force). Aka Law of Inertia An object is moved with F1, with a certain m1 and a1. The same forc. e is applied to m2 and a2. A2 is twice as large as A1. If you add m2 and m1 together and apply the same force, what is the acceleration? .