Today we reviewed stuff for NJ Ask,went over some sample questions,discussed elimination processes, and essay questions.

AR

walking project-period 2

Today we continued our walking experiment by walking to a location and finding the distance. We have to find out how many steps are taken in 10 seconds. We recorded each persons step and added them and multiplied by 6 and divides by 4. Our formula we need to follow was- EE was our walker and she walked an average of 27.5 steps in 10 seconds. We found out that she took 135 steps in one minute. We divided it by 60 and got 2.25 steps per second. We later realized how we messes up our experiment and had to start over. This time, we took the measuring tape and measured 50 feet. She walked the distance of that, which also failed. Mr. Finley explained to us to find the uncertainty of our steps. That is something we will continue tomorrow. Tomorrow we will also review the numbers that we found today and use uncertainty to receive a better answer for the number of steps S.D

Walking Lab

Our group started the walking lab yesterday. We started by looking at the equation Distance/ Time = Speed. Then after understood that we devised an experiment.The first step in our experiment we measured a distance of 49 feet 6 inches and that would be the distance we walked. Next we got a timer and we timed each person in our group walking the distance distance three times each. Then we used our equation Distance/Time = Speed for each of our times. My times were 10 seconds, 9.4 seconds, and 9.7 seconds. Then I divided 49.5 feet by each of those times and I got 4.95 ft per sec, 5.27 ft per sec, and 5.1 ft per sec. Next I found my average time which was 5.11 ft per sec. We did this for everyone in the group. After we did that Finley had us measure from his room's door to Mr. G's door which was 198.25 ft. Next we predicted how long it would take KK to walk that distance. Her average speed was 6.24 feet per second. So that means we had the distance and the time for our equation. Next we took the distance with uncertintey and divided it by the speed with its uncertintey. The range we got was 31.74 seconds- 31.79 seconds. Next we had KK walk the distance so we could see the actual time. Her two times were 30.92 seconds and 29.86 seconds. Then we need averaged those out with the uncertinty and we got the range of 30.395 seconds- 30.385 seconds. So even though our prediction was close it still wasn't right on. REMEMEBER TEST ON FRIDAY -DB

March 31 #4

Today we had a substitute and he handed out Lunar Lab packets for us to do. We used a lunar simulation to answer the questions in the packet. Most of the questions were about the phases of the moon and how an observer on Earth would see the moon. We had to work in pairs to work on the packet but we didn't have to finish it. The substitute said we would have time to work on it the next day.

-CS

April 1st

Today, we spent the whole class finishing our Lunar Lab that we started the other day.

Once we finished all four pages of the Lab, we checked our answers with each other. Since everyone is progressing at different rates, some people might have finished checking the labs and started other things (I am not really aware of what other people are doing because I just finished checking the lab at the end of class with my group.)

AT 4th blog