What Method Was Used To Move A Wooden Block Experiment

This lesson was about experimenting with Forces and motion. After inquiry 4.1 and 4.2, it was best to graph the data to see the differences. Inquiry 1 was used to find out the force needed to move a wooden block over different surfaces. The different surfaces that were used were the Tabletop, Waxed paper, Paper towel, Fine sandpaper, and Coarse sandpaper. A spring scale was used to measure the amount of force using the unit Newtons(N). After 3 trials to get one number averaging was necessary. Same went for Inquiry 4.2. To get a better picture of the Friction force the mass was changed. Will the measure of force change if the mass changed. Inquiry 4.3 was different. The mass was kept the same but the surface area was changed. What will happen
To figure that out the wooden block had a hook in it so the hook from the spring scale could attach on to it easily. Across the tabletop, it took the force of 0.75N to move the block across. The force of friction needed to move the wooden block across the wax paper increased a little more than 0.11N. The force reached 1N when moved across the paper towel. That was when the force doubled when the block moved across the Coarse sandpaper. So multiply the force needed to move it across the paper towel by 2 and there is the force needed to move the block across the Coarse
Graphing the data was not necessary for this lab. For this lab the independent variable was changed from sliding surfaces to the measure of surface area. Starting of with 4 blocks with the surface area of 1 block the force of friction was 2N. Than with 4 Blocks stacked with double the surface area was 2N. Than the last one with 4 times the area the force of friction was 2N. As you can see the force of friction did not change. So according to the data the sliding friction does not depend on the amount of surface