SPH4U: Physics, Grade 11, University Preparation Unit 2: Forces Assignment 2 Analysis of Effects on Friction In this assignment, you must carry out an investigation into the factors affecting static and kinetic friction. You will collect data using the Physics Aviary simulation and then use that data to record observations and answer the following analysis questions. Purpose: To analyze the effects of surface area, mass, and material on the force of friction Hypothesis: (fill this in and include embedded citations) (5 marks) (you will write your own hypothesis based on your own research into how different masses with the same material affect friction). Procedure: Follow the instructions as you progress through the virtual lab. Record the data in the table below. Observations: Data table (complete the experiment with 4 different masses in approximately even intervals). (4 marks) Material/Object Mass Normal characteristics (kg) Force Force of Force Coefficient Coefficient of of Kinetic of Static (N) Static Kinetic Friction Friction Friction (rounded Friction (rounded (N) (N) to two to two decimal decimal places) places) Rubber on ice Rubber on ice Rubber on ice Rubber on ice Sample Calculations: (show all calculations for one entire row) (2 marks) Graph: Copy and paste or snip one graph below. Write 3-4 sentences explaining what the graph is showing. (4 marks) Diagrams: Draw free body diagrams to show the forces acting on one concrete block for the following scenarios: (4) a) Not moving and not being pulled by the spring. b) Not moving and being pulled by the spring and static friction was at its maximum. c) Accelerating and being pulled by a force larger than the force required to move it in uniform motion. d) Being pulled by a sufficient force to maintain uniform motion. All forces require labels and appropriate values in Newtons.