Learning Objectives: ● Be able to identify when an object is being acted upon by unbalanced forces. ● Be able to predict the change in motion when a force is applied to an object. Part 1: Understanding balanced and unbalanced forces 1. Open the Forces and Motion Simulation. 2. Play with the first tab of the sim for about 5 minutes. What do you find? 3. Using the simulation for help, draw pictures showing Joe, the file cabinet and force arrows. Scene 1: Joe not pushing Scene 2: Joe pushing but cabinet not moving Scene 3: Joe pushing and cabinet moving 4. Describe what is necessary to start the file cabinet moving. 5. Compare the Applied Force arrow and the Friction Force arrow. a. What is similar? b. What is different? 6. Use your answers to #5 to say whether the forces are balanced or unbalanced in each scene