3-5

In Physics today we talked more about circular and rotational motion. When we first came to class, we picked up a packet, which are pages 5-8. It is a lab that will take about 2 days to complete. The first thing we did today was the Daily Question. It showed 3 objects and asked which object rolled along the track... more stable, unstable, and moderately stable. The picture I included shows a picture of the three objects. The picture is below this. It shows that number 2 is unstable and rolls off the edge, number 1 is moderately stable for short distances, and number 3 is very stable and centers itself on the track. After the Daily Question, we went over the homework (page 4, "Questions on Rotational Motion". The multiple choice answers from those are: 1. B 2. A 3. B 4. A 5. C 6. E 7. D 8. C 9. Rotational speed: 2.5 rev/s. Tangential speed: 9.42 m/s

Make sure you know that material for tomorow because there will be a short quiz on it. After we went over that worksheet, Mr. Manning showed us a demonstration using a toy car for Question 3 on page 2. This demonstration showed that the direction of the force acting on Mr. Physics was inward. That was basically all we did in class today. Do not forget to study Rotational motion for the quiz tomorrow!