final+lab+report


 * Title:** playing with force and friction.
 * Research Question: How does different surface affect the magnitude of the force.**


 * Hypothesis if the surface is a rougher, the magnitude of the force would be greater, because, friction, the opposing force, causes us to require more effort to move the object.**


 * Material: three different surfaces, weights and Newton meter**


 * Part 1.**
 * Draw a Data Table to record the different types of surfaces to be tested and the force needed to pull the block at a constant speed. Note that this data table should be included under the //__Data and Calculation section__//**


 * Part 2.**
 * Draw a second Data Table to record the different weights to be tested and the force needed to pull the block at a constant speed. Note that this data table should be included under the //__Data and Calculation section__//.**


 * || **Trail 1** || **Trail 2** || **Trail 3** || **average** ||
 * **Cork** || **790g** || **810g** || **820g** || **808g** ||
 * **Plastic** || **160g** || **150g** || **170g** || **160g** ||
 * **Carpet** || **300g** || **310g** || **290g** || **300g** ||


 * Independent variable: quantity of friction**
 * Dependent variable: force**
 * Controlled variable: Control variable: weight, speed scale, spring and shape**


 * || **Trail 1** || **Trail 2** || **Trail 3** || **average** ||
 * **200g** || **1N** || **1.1N** || **.2N** || **.8N** ||
 * **500g** || **.8N** || **.6N** || **.5N** || **1.6N** ||
 * **1000g** || **3N** || **1.1N** || **2.9N** || **3N** ||


 * Independent variable: mass**
 * Dependent variable: force**
 * Controlled variable: friction, figure, speed, spring scale **


 * What conclusion can you form from this? Was your hypothesis correct?**
 * My hypothesis was mostly accurate because we said that if the surface is harder it requires more force and if the smother it needs less force. And what we found was the same.**


 * Suggestion for improvement:- In other expectations experiments, it would be good if make the force as precise as can. **