Nova Southeastern University

• PHYS 2500

• PhET Simulations—Forces in 1D Select “PhET” from the list of web resources on the Physics web page. Choose to begin the simulations and then select the Motion simulations from the menu in the left margin. From the choices shown, select the “Forces in 1 Dimension” icon. There are basically three different ways to apply forces: either click and drag on the object you are trying to move, use the slider on the left hand side of the page to choose a force then click on “go” to begin applying the force or use the free body diagram to. For each question play with the page for a bit before you formulate an answer. Free Body Diagrams 1. In the upper right hand box is what we call a “free body diagram”. Play with the page until you create a situation where there are 5 different colored arrows in the diagram. Insert a screenshot of you simulation below. Write the label for each arrow and what it represents. Example FN – normal or perpendicular force -- the force from the surface the object sits upon FN - normal or perpendicular force -- the force from the surface the object sits upon Ff – force of friction—the force that opposes on the object’s motion FG- the weight—a field force due to gravitational attraction between two objects Fwall – the wall force—force of the wall acting upon the object Fa – applied force