https://padlet.com/a_falk1/uja4pj3wbaak by:Austin Falk en-us 2019-02-06 17:55:01 UTC 2023-04-29 02:39:06 UTC hello@padlet.com a_falk1 https://padlet.com/a_falk1/uja4pj3wbaak/wish/328400482 Question: Do different surfaces create more friction than others do?

Background info: There are many different surfaces some smother, bumpier, stepper, etc, than others and have different effects on an object. For example I have had an experience with this, I was riding on my bike and I was riding on rocks and it was harder to make my bike drive so I had to use more force(any interaction that, when unopposed by pushing or pulling, will change the motion of an object) to move, but when I got to a flatter surface it go easier to move and I used a lot less force than on the rocks. I made some observations after this encounter. One was that it took a lot of force to move on the rocks. Another is that it took a lot less force to move on the flat surface. So this must mean that there was more friction made on the rocks than the flat surface. Then because of this, that must mean that different surfaces cause more friction than other surfaces. So to test this theory, I will use a Friction board with different surfaces on it and a block to see if there are different amounts of friction created from each surface.

hypothesis: My hypothesis is that if the block goes over one surface, then the block will create a different amount of friction than on a different surface, because each surface is different and not the same.]]> 2019-02-06 18:01:14 UTC https://padlet.com/a_falk1/uja4pj3wbaak/wish/328400482 a_falk1 https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403026 Materials:
- Friction board with 4 different surfaces
- Block(198g)/with hook in it 
- Spring scale
Procedures:
1.lay down the friction board on a flat surface for accurate measures.
2. Get the block and hook it up with the spring scale on the side of the block.
3. Set this up on one of the surfaces on the friction board.
4. Pull the block across the surface and record how many newtons it took a move across that surface.
5. Wright down results and observations of the test
6. repeat steps 2-5 on the same surface to get accurate measures.
7. repeat all of the steps for the rest of the surfaces of the friction board.
8. make a graph out of the results you have gotten.
9. Compare and make observations about all the surfaces you did trials on.

]]> 2019-02-06 18:05:09 UTC https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403026 a_falk1 https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403273 Observations:
Control/surface 1: was easy for the block to move across the surface, block stade standing when pulled, wasn't hard to pull the block across, a small amount of friction created.

Variable/surface 2: slightly hard to move the block, block got stuck sometimes, slightly hard to move the block, a "medium" amount of friction created.

Variable/surface 3: block had a hard time moving, the block would sometimes fall/stop, a lot of friction created.

Variable/surface 4: slightly hard to move block across the board, medium amount of friction created, block stopped sometimes when moving.

Table: https://docs.google.com/spreadsheets/d/1esyoqkBCGp4Z-SCADni0B0XcxdL7aOzan5CnWJTIruQ/edit?usp=sharing]]> 2019-02-06 18:05:33 UTC https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403273 a_falk1 https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403507 In my studies, I can across very interesting results average of .7N(surface 1),1N(surface 2),1.3N(surface 3), and 1.1N(surface 4). There is a definite difference between these surfaces. For example surface 1 was smother than the other surfaces. Also each surface caused the block to react in different ways when being pulled across them. Like on surface 3 the block fell over a few times during my trials with that surface.

So in conclusion between these results that have been created is evidence which proves that my hypothesis is correct that different surfaces create different amounts of friction than others do. ]]> 2019-02-06 18:05:54 UTC https://padlet.com/a_falk1/uja4pj3wbaak/wish/328403507