PPT-Forces Lesson 2A How Can We Draw the Forces Pushing or Pulling an Object When We Can’t

Our Focus Question from Last Time What makes something start to move How did you answer this question What did we call the actions that cause something to move Key Science Ideas. Definition: . A . force. is a push or a pull in a particular direction.. How does it balance?. Textbook p. 53. You probably would be uneasy standing under Balanced Rock near Buhl, Idaho. Yet this unusual rock stays in place year after year. The rock has forces acting on it. So, . On a post-it, write down anything you know about the word force or the different ways you use the word force.. Scientific Definition. A force is a . push . or a . pull. of an object.. When there is a force, one object is applying a force and on object is receiving the force.. One popular urban myth tells a story of a man who makes a wish from the top of the Empire State Building, then tosses a penny off the roof. Over 1,000 feet below, a pedestrian is hit by the speeding penny and killed. …Good luck, huh?. Here’s Tim & Mobey on Force. Brainpop. Suppose I asked you to move a heavy desk in the classroom. How would you move it? . hmmmmmmmmmmm...... You might get on one side of the desk and start pushing, Or you might grab the legs and start pulling. . 11.1: Forces change motion. 11.2: Force and mass determine acceleration. 11.3 Forces act in pairs. 11.4 Forces transfer momentum. Warm-up Questions (T or F). Speed includes direction, while velocity does not. Can cause a change in the motion of an object.. Tug-of-War Example:. . In the pictures above, each person is pulling with a force of 50N (. N. ewtons. ).. What will happen when the person from the first picture drops out?. How do balanced and unbalanced forces affect an object's motion? . Inertia. is the resistance of any physical object to any change in its state of motion, including changes to its speed and direction. . Changes in Motion. Objectives:. 1. Describe how force affects the motion of an object.. 2. Interpret and construct free-body diagrams.. The Force is Strong With You. Force. is an action exerted on an object which may change the object's state of rest or motion.. What is a force?. A force is a push or a pull. . Forces make objects accelerate. What are the two general types of forces? How are they different?. Type 1: Contact Forces. Force as a result of object touching. 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 . Expedition 3: Fundamental Forces Forces and Laws of Motion http://webpath.follettsoftware.com/resource/viewurl?encodedUrl=plo2j1Ikxcj5uQozTp-kxdLlZXe3VIeh2JUFcQGT0_Q&version=1&userGUID=41192717-80A3-450C-8DA0-6CF1AC2834B9&gv=1&gc=-17299486&appsignature=Destiny&appversion=11.5.3.0+% Types of . Forces. :. Push. Pull. Friction. Air Resistance/Drag. Buoyancy/. Upthrust. Gravity. Twist. Elastic/stretch. Static Electricity. Magnetism. Reaction . A force is a . push. or . pull. on an object.. Review: Ideas about Friction. What is friction and how does it work? . Are there bumps anywhere else besides . the surface an object moves across?. Give an example of friction from your everyday life. . Essential Question:. How do gravity, inertia, and friction affect the balance of forces?. Standard:. S8P3b. Demonstrate the effect of balanced and unbalanced forces on an object in terms of gravity, inertia, and friction.