Week 3 Lab/Lecture
- The big question addressed in lab, and a description of what you did?
- The big question we discussed in lab this week was 'What affects a rider's speed down a slide?' We built a demo of a slide and the question my group focused on was 'How does the weight of the ride affect the speed of the ride/object?'
- Description of what we did in the lab?
- We built a demo of a slide, we used a piece of wood that models the slide. We then used a toy truck pictured in Figure 1. We did three trials for each weight. The first trial was just the truck. In trial two we added three washers to the back end of it. In trial three, we added three more washers, a total of six. After each trial, we added about 20 more grams to it.
- A description of what you learned in Thursday's lecture.
- In the lecture, we discussed the formula for acceleration. I learned it in high school but the past two weeks have been a good refresher.
- Acceleration= change in velocity/time.
- Height determines acceleration for when someone is going down a slide.
| figure 2 |
- Answer questions about the weekly textbook reading:
- What did you learn?
- The article taught me that car crashes simulate Newton's first law. Newton's first law is 'Objects at rest remain at rest, while objects in motion stay in. motion unless acted on by an unbalanced external force.'
- What was most helpful?
- The video demonstrations for Newton's First Law. Showing car crashes with the forces and motion and the physics of cars.
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