Blog Post Week #3

  1. The big question addressed in lab, and a description of what you did.
    1. This weeks big question in lab was, "What affects the speed of a rider using a slide?" Our class used meter sticks to create a slide and photo canisters as our riders to test this question. Our variable that we tested was the texture of the clothing of the rider. Tp test this we used, silk, felt, soft burlap, rough cotton, and soft cotton. For this our independent variable was the material, the dependent variable was the speed of the rider, and our controlled variables were slope, rider weight, and distance in meters. We found that the felt made the rider slide down the slide the fastest. 
  2. A description of what you learned in Thursday's lecture.
    1. We focused on a couple different ideas in lecture this week. The first being height, the second being steepness, the third being surface/clothing, and rider weight. These are the different variables we tested through in lab but now we were Abel to learn abut all of them instead of focusing on just one. For the height we found that the higher the slide, the faster the speed of the rider. This is the case because the riders accelerate as they go down the slide. If the slide is longer, they have m more time to accelerate to faster speeds. The same goes for steepness, the steeper the slide, the faster the rider will go. Then as my group found, the clothing of the rider will affect the speed as well. The reason for this is because some riders clothes will have more friction slowing them down. And lastly we found the riders weight does not affect the speed of the rider. 
  3. Answer questions about the weekly textbook reading:
    1. What did you learn?
      1. Something I never really knew about was inertia. I learned that in order for an object to change in motion, there needs to be a force upon it. This is something I have understood the idea of, but I didn't realize it was called inertia. 
    2. What was most helpful?
      1. Friction is something my group dealt with this week in lab, so reading about it in the textbook helped me understand why we had our specific findings. 
    3. What do you need more information on?
      1. Something I need more information on is why the weight of the rider wouldn't affect speed. This is something that I would not have guessed but after reading it began to make more sense. 
    4. What questions/concerns/comments do you have?
      1. A comment I have is that these experiments and readings would be great to learn at a young age for students who are still playing on playgrounds! 





 

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