Aim
The aim of this experiment is to test the trainer for is suitability for general use as sporting equipment.
Method
This is the method that we used to test the grip of the sole from the sports trainer:
- There were 5 different surfaces we had to test the on, firstly we chose one surface and put the surface on a flat surface.
- Then we put the trainer on top of this surface.
- After that we attached the Newton meter to the trainer.
- Then we dragged the trainer from the Newton meter.
- After this we looked at the reading and recorded this on a table.
Diagram of test
The diagram below shows what we had to do in this experiment to test the grip:
Apparatus used
The apparatus we used to perform this experiment are listed below:
- Wooden board
- Sandpaper
- Carpet
- Vinyl
- Rubber
- Newton – meter
- Trainer
Results table
Conclusion
In the results table I have found that the trainer is not suitable on vinyl because the grip had come out as 0.6 and when loading it the results had come out as 4.2 and on the rest of the surfaces the results had come out as 10+ which means that there was a lot of grip of the rest of the surfaces and I had also found that the trainer is very slippery on vinyl.
Comparison
This is the table I got from a class mate to compare:
Evaluation
I think that I had performed this experiment very well and had listened to the teacher very carefully, so that I did not make any mistakes while performing this experiment, I think that this experiment was very straight forward and helped me understand more about the grip of the shoe and what kind of surfaces the trainer was suitable on.
Density experiment
Introduction
Density is the ratio of the mass of an item to its volume, usually expressed in such units as kilograms per cubic metre, or pounds per cubic foot, or else as relative density. Relative density, also called specific gravity, is the ratio of the density of a body to the density of water at 4° C, the latter being taken as unity. Since 1 cubic centimetre of water at 4° C weighs 1 gram, the relative density of the substance is numerically equal to its density expressed in grams per cubic centimetre.
Method
- Firstly I had cut off pieces that I needed from the trainer.
- Then I got the mass by using a scale.
- After this I calculated the volume by putting the piece of trainer into a metal container with a hole on the side and filled with water.
- When I put the piece of trainer in the container the water came out the hole and went into a long funnel which told us the volume.
- Then we calculated mass divided by volume which gives us the answer to what the density is.
Diagram of test
The diagram below shows the method and equipment that we used to calculate the mass of the piece of trainer we cut off the trainer:
The diagram below shows the method and equipment that we used to calculate the volume of the piece of trainer:
Apparatus used
- Piece of sole
- Piece of lace
- Piece of the upper part of the trainer
- Piece of the insole
- Metal container
- Plastic measuring container
- Electric scales
Results table
Conclusion
As you can see in the results table above the upper part of the trainer is the most dense from the rest of the trainer, the lace and the insole as you can see have the same volume but the masses are different so the density results are different from each other, the insole had the lowest density results of 0.22.
Comparison
This is a result table that I got from a class mate to compare:
Evaluation
When I was performing this experiment, I had performed safely and had listened to all the teachers instructions, but I had made a few mistakes like some times the water had over flowed because I had put the piece of trainer in too fast, so I had to perform the task all over again. Other than this I think I performed this experiment very well.
Weathering
Introduction
Weathering is the breakdown of rocks and other things by chemical processes at the surface of rocks or other items, this is usually done by the rain weathering on an item makes it go smaller or wearing it away. Weathering also makes rocks go smaller which leaves behind debris which is then carried away by erosion by the wind, ice, water or the sea, testing the trainer is very important because it then tells us how long it would last outside when exposed to water.
Method
- Firstly I had to cut up the trainer and took the pieces that I needed for this experiment.
- Then I measured each of their lengths and put then into a table.
- Then I measured each of their widths and wrote them down into the table.
- After this I calculated the area by doing width x length
- Then we soaked each of the pieces in water and made sure nothing was dry.
- Then we dried them out with a hair drier.
- After this we had measured the length and width and put this in our table.
- Then we calculated the area by doing width x length.
Diagram of test
The diagram below shows how we soaked the piece of trainer:
The diagram below show the method that we used to dry out the piece of trainer after we soaked it:
Apparatus used
- Beaker
- Pieces of trainer
- Hair drier
- Ruler
- Calculator
Results table
Conclusion
The results table above shows the area of the trainer before and after weathering, it tells us that the pieces of trainer expand after soaked in water, the results after weathering are bigger than before weathering which tells us that the water makes the pieces expand.
Comparison
This is a result table that I got from a class mate to compare:
Evaluation
To perform this experiment I listen to the teacher very carefully and made sure that I did not make any mistakes, this task was very simply to perform and I do not think that any one could be capable of making a mistake during the experiment.
Chemical corrosion
Introduction
Chemical corrosion is when something metal, rubber or plastic is dissolving, softening or just wearing away, and this is done mostly from chemicals or more commonly acid rain.
Method
- Firstly I cut off the pieces off the trainer which I needed to perform this experiment.
- Then I measured their length and width and put the data into a table.
- After I did this I calculated the area by doing width x length.
- Then I put the pieces into a beaker filled with acid and left them there over the weekend.
- Then I dried it out using a hair drier.
- Then I measure the length and width and put the data into a table.
- Then I calculated the area by doing width x length.
Diagram of test
The diagram below shows how I soaked the piece of trainer in acid and left them over night:
The diagram below shows the method I used to dry out the piece of trainer:
Apparatus used
- Beaker
- Pieces of trainer
- Hair drier
- Ruler
- Calculator
Results table
Conclusion
As you can see above is my results table for chemical corrosion, I have studied this table and found that some materials shrink but some parts of the trainer expand, the upper part of the trainer before corrosion has the biggest area which was 7.56.
Comparison
This is a result table that I got from a class mate to compare:
Evaluation
When I was performing this experiment, it helped me understand the way corrosion affects the trainer, I had performed this experiment safely and did not cause any hazards, and I had handled the acid safely and did not cause any spillage.
Resistance to wear
Introduction
Wear is the term used for something that is being rubbed against something else hard and making the thing smaller, for example we use a rubber to erase the mistakes we make on paper and when we rub the rubber against the paper and bits fall off the rubber and makes the rubber smaller.
Method
- Firstly I cut off pieces from the trainer that I needed for this experiment.
- Then I measure their length and width and put the results into a table.
- After this I got a block covered in sand paper and started rubbing each of the pieces from the trainer.
- Then I measured the length and width and put this into a results table.
Diagram of test
The diagram below shows the method that I used to wear the piece of trainer:
Apparatus used
- Sand paper block
- Pieces of trainer
- Ruler
Results table
Conclusion
As like all the other results the upper part of the trainer has the biggest area from all the other parts of the trainer, after wearing the insole it becomes the piece with the least area which mean that the insole must be the easiest to wear off.
Comparison
This is the table that I used for comparison:
Evaluation
This experiment to find the wearing of each part of the trainer was the most simple experiment from them all it was mistake proof and, this helped me understand how each of the pieces of trainer wear away, this also told me which piece of trainer wears away the most and which piece is the strongest.
Strength test
Introduction
Strength just means how strong something is, we will be testing the strength of the trainer to tell us how strong it is, this will tell us about how long the trainer will probably last.
Method
- Firstly I cut off a piece of the lace.
- Then I put the G clamp on the side of the science table and tied the lace to the G clamp.
- Then I got the weights and hooked it to the bottom of the lace.
- Then I slowly put more and more weights onto the lace and used a ruler to see how much the lace stretched
- After this I used a screw – micrometer to work out the diameter.
Diagram of test
The diagram below shows the method that I used to perform this experiment:
Apparatus used
- G – clamp
- Weights
- Lace
- Ruler
Results table
Conclusion
As you can see above is the results table for strength, we did not perform the experiment for all the pieces because it is almost impossible to work out the strength on big pieces of trainer which would probably not stretch.
Comparison
This is the results table I used to compare:
Evaluation
I think that I had perform this task very well but with a little bit of help from the teacher because I had found it hard to use the screw – micrometer, other thsn that I think I perform the task very well.
Stiffness test
Introduction
Stiffness means how hard is it to make the trainer bend, we are going to see how stiff the trainer from the Nike Company is, and this should tell us the endurance the trainer can take then a person is running.
Method
- Firstly I cut off the whole of the sole and made a hole in at the back of the sole.
- Then, with a G – clamp I clamped the sole to the side of the table.
- Then I got a really strong piece of string and put it in the hole and tired a knot in it.
- Then I hooked the weights onto the bottom part of the string and I kept adding more and more until the trainer started to bend.
- Then I recorded the results onto a results table.
Diagram of test
The diagram below shows the method I used to perform this experiment:
Apparatus used
- Sole
- G – clamp
- Weights
- String
- Saw
Results table
Conclusion
As you can see above, there is my results table for stiffness, I found it really hard to bend the shoe because it was very strong and become hard to bend, so we had to put on big weights to start bending it.
Comparison
This is the results table I used for comparing:
Evaluation
I had enjoyed performing this experiment because I had to cut all the sole off from the trainer and I found this quite easy, but I found it hard to use the G – clamp to clamp the trainer because the G – clamp was too small so I had to squeeze the clamp on and got it done in the end.
Collision time
Introduction
In this part of the experiment I am going to see how comfortable each piece of trainer is by using a cart and putting each piece at the front of the cart and putting a wooden block at the top and to see how far the block goes the more furthest it goes the less comfortable the piece is.
Method
- Firstly I got a piece of trainer that I had already cut off the trainer.
- Then I used sellotape and taped the piece of trainer to the front of the cart.
- Then I drew a line on the top of the cart and put the block behind it.
- Then I put the cart at a reasonable distance as possible.
- Then I let go of the cart and watched it run drive down the ramp and into the wall.
- Then I used a ruler to see how far the block went when the cart collided with the wall.
Diagram of test
The diagram below shows the method I used to find the collision distance of the trainer pieces:
Apparatus used
- Cart
- Block
- Pieces of trainer
- Ramp
- Books
- Wall
Results table
Conclusion
I think that the sole and the insole have the same comfortableness because they both made the block move at the same distance as each other, but the thicknesses are very different from each other.
Comparison
This is a table that I got from a class mate to compare with my results:
Evaluation
I think that I performed this task really well, I had to find I own distance from the wall and didn’t get any help from anyone, but I still performed the task perfectly.
Conclusion of all experiments
In this coursework I had found the testing for wear experiment the most simplest from all the experiments and found the testing for stiffness experiment the hardest because I had trouble clamping it down and finding more weights to hook onto the shoes.
Evaluation of all experiments
If I could change my trainer I would make it less stiff, so that the foot could move around easier, but other than that the rest of the trainer was good and had good grip which is very useful for a person that does a lot of running but could still slip on some surfaces.
