Friction Laboratory Partner(s) Names: Alphabetical order Purpose: Provide a reason why we performed this lab (be as specific as possible). Materials: Remember to place in two columns. Also, include a labeled sketch (Figure 1.) of your setup. Procedure: Write in step-form (numbered) and in past tense what you did to obtain the data collected. Results: Include at least one table (you might think two tables work better??) displaying the data you collected in this lab. Analysis: Show one sample of your calculations for finding the coefficient of friction. Show the percent difference between the coefficient of friction determined: i) ii) iii)
Between block on its flat side and block with added weight on its flat side on the smooth surface Between block on its flat side and block with added weight on its flat side on the sand paper surface Between block on its flat side and block on its narrow side (less surface area) on the smooth surface |
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Discussion: Here are some thoughts to consider in addition to any you can think of: -What is friction? Statics friction? Kinetic friction? How are they implied in this lab? -What is a coefficient of friction? -What are some real-world examples of how the results from this lab can be used? -What trends do you notice in your results? How does weight affect friction (make connections to your data)? -How does Newton’s second law apply to this lab? -Show a vector diagram of your block and explain what’s happening. -Discuss findings from your % difference calculations; particularly any impact surface area has on friction. Conclusion: Did the results meet your ‘purpose’? What are three sources of error in this lab? How could you make three improvements to the lab (so that it better helps meet your purpose)?
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Page 1 of 2. Physics 11 Name: Force of Friction. 1. A 7.6 kg object is resting on a horizontal surface. What is the normal force on the object? 2. A 7.6 kg object is pulled along a horizontal surface. If the coefficient of friction is 0.20,. what is
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