answer it correct or you will get reported,
Name and Title Name of Lab: Student Name: Instructor: Date: Objective The purpose is to test whether the surface texture of the ground affects the distance an object can roll. Hypothesis If an object rolls over _______________ (type of material), then it will _____________ (describe the prediction of distance it will travel). Materials For this lab, I used the following items: Procedure Short summary of what I did: I experienced the following errors while doing my experiment: Test (independent) variable (What was different about my test groups?): Outcome (dependent) variable (What was I measuring?): Data Record the distance traveled for each of the trials for the three floor surfaces in the table below. Distance Object Traveled Floor Surface Trial 1 Trial 2 Trial 3 Data Analysis Calculate the average distance traveled for each floor surface. Use the following guidelines for calculating averages, and show your work. Floor Covering Calculation of the Average Average Distance Traveled Example (trial 1 measurement + trial 2 measurement + trial 3 measurement) / 3 (number of trials) Your answer from the calculation, showing the average distance the ball rolled for that floor covering.
Conclusion Answer the following questions in complete sentences.
Describe in your own words what friction is.
Describe how friction affected the results of your investigation.
Does an object travel farther on a smooth or slippery surface or on a rough surface? Why?
Propose another experiment that could be used to demonstrate that friction is a contact force.
