Forces and Motion using PhET’s Force and Motion Basics HTML5 Part 2 – Friction. With Answers.

Name: Alexandra M. González Villanueva Date: March 1, 2021 Learning Objectives: Students will be able to • Predict how forces can change motion. • Provide reasoning and evidence to explain motion changing or not. 1. Open the Forces and Motion Basics simulation & play with the Friction screen for a few minutes. a. How does the Friction screen differ from the Net Force and Motion screens? The friction screen shows the interaction between the fridge and the ground, while the net force shows the interaction between two opposing forces. The motion screen shows the interaction of the person acting on another object. b. Also, what is something new you discovered? I learned that when friction is present, it becomes more difficult to move something, and when less friction is present, it’s much easier to move something. 2. Imagine that your friend, Sam is trying to move a box. a. Using what you learned by exploring, try drawing arrows to predict what might happen in the pictures below. (Try this part without using the simulation.)