Mimmo's 9th Blog

What science ideas did you learn?

This week we learned about some of the same stuff last week. For example when and where two cars will crash if the are both traveling at certain speeds. Also we learned how long will it take two objects to be a certain distance apart if they go in opposite directs. Then we learned that dot diagrams aren't too help so we learned about motion diagrams. They are made the same, with dots and origin and positive and negative, but motion diagrams have velocity arrows. Then you compare the speed in between each dot using the velocity arrows.

How did you learn these ideas?

I learned these ideas because the Senior Segen gave us the word problem and said two cars travel in opposite directs how far will they be apart in one hour. Then he gave us their speed and other information we needed. After we created functions and found this out and then we went over it. We learned about the motion diagrams because Mr. Segen asked us if the dot diagram was useful. The dot diagram only gave us their direction and a general idea of their speed. The motion diagram gave us that too, but also a better sense of their speed between each dot.

Why is it important to know this idea (What real world application is there)?

It is important to know this idea because one day I could be driving my car and all of a sudden I could see a car in the distance that was about 2 miles away. Lets say I was going 45 mph and the other person was going 55mph. I could find out when and where we would hit. Then because I thought back to 8th grade science I just averted what could of been a major accident.