Hey there everyone!
Thursday and Friday were very busy classes for the seventh grade. Since Ms.D was sick on Thursday, we had a substitute teacher called Ms.Erfle. She checked our homework, which was the Work & Power Math Sheet. You can find it here. We had to use the Formula-Plug-Chug method to solve the sheet. Here are the answers to the worksheet!
1. 794.97 J (Joules)
2. 20.60 N (Newtons)
3. o.43 m (meters)
4. 20.13 W (Watts)
5. 20 s (seconds)
6. 7491 J (Joules)
For seven and eight, there were two parts to the problem, labeled "a" and "b".
7a. 129.75 J (Joules)
7b. 54.06 W (Watts)
8a. 43.2 m (meters)
8b. 589.88 W (Watts)
Later on, we did the Work and Power Math 2 worksheet. Here are the answers to this second sheet!-
1. 411.84 J (Joules)
2. 37.24 N (Newtons)
3. 5.48 m (meters)
4. 13.87W (Watts)
5. 6.14 s (seconds)
6. 7,222.50 J (Joules)
Again, for numbers seven and eight, there were two parts to the problem, labeled "a" and "b".
7a. 472.50 J (Joules)
7b. 89.15 W (Watts)
8a. 55.46 m (meters)
8b. 133.25 W (Watts)
Moving on, we started to take notes, define key terms, and answer analyzing data for pages 114-119. Since we didn't have enough time to finish this, Ms.Erfle gave it as homework for Friday. Lastly on Thursday, we started watching a video by BBC Life that talked about how animals live around the world and what they do. You can find the video here. Unfortunately, we didn't get to watch all of it, since class finished. As a reminder to everyone, our Science Superhero projects were due on Friday.
Friday's Class
On Firday, Ms.D was back! Firstly, we showed Ms.D our homework, which was,
as I said before, to take notes on pages 114-119. Then, we talked about our Science
Superhero projects, since most, if not all, of the class had problems with them and didn't
understand what they were doing, Ms.D gave us until Tuesday, March 8th, to re-do
them and correct them.
as I said before, to take notes on pages 114-119. Then, we talked about our Science
Superhero projects, since most, if not all, of the class had problems with them and didn't
understand what they were doing, Ms.D gave us until Tuesday, March 8th, to re-do
them and correct them.
Things to know about Science Superheroes are:
- First part, CREATIVE WRITING!!! NO SCIENCE!!
- Footnotes- at the end of the paper, SCIENCE!!!
After having discussed and understood our Science Superhero Projects,
we looked at our homework. Here are the notes we took:
we looked at our homework. Here are the notes we took:
Machine- a device that allows you to do work in a way that it is easier.
Input Force- the force that you exert on the machine (done by person).
Output Force- the force the machine exerts on an object (done by machine).
Input Work- input force times input distance.
Output Work- output force times output distance.
Mechanical Advantage- output force/input force.
Efficency- the efficency of a machine compares the output work to the input work;
calculated as a percentage (%).
calculated as a percentage (%).
A machine makes work easier by changing at least one of three factors. A machine
may change the amount of force you exert, the distance over which you exert a
force, or the direction in which you exert a force.
Output Force/Input Force=1- changed direction.
Output Force/Input Force= greater than 1- increased the amount of force.
Output Force/Input Force= smaller than 1- direction changed.
Here are the answers to the Analyzing Data-
- Input force (N) - independent variable.
- 400 N (Newtons) of output force.
- Ramp 1= 10, Ramp 2= 5, and Ramp 3= 2. (Ramp 3 has the greatest MA)
- The slope shows how much a machine can do with an amount of input force.
Strangely enough, for the input and output forces, you do NOT have to put a unit!
After taking notes, we started on a new subject...drum roll...SIMPLE MACHINES!
We only started out,so we only discussed the seven different types of simple machines.
We only started out,so we only discussed the seven different types of simple machines.
They are: pulley, ramp, lever, wheel & axel, screw, wedge, and gear.
We are going to make a presentation (powerpoint, poster, prezi etc.) in groups of
two, on a different type of simple machine for every group. As a reminder, our partners
are numbers 5 in our appointment clock.
two, on a different type of simple machine for every group. As a reminder, our partners
are numbers 5 in our appointment clock.
Our homework for Tuesday is to finish our Science Superhero Projects!
AND THE NEXT SCRIBE IS......EVEN COOLER MUSIC.....JAKUB!!!!
Hey Davide-
ReplyDeleteGreat scribe post! You were very detailed, and you wrote down all the notes that you took during class! Your use of hyperlinks was also very good, but you could have maybe changed the color of your firt hyperlink (or word 'here') because some people may not understand that you have to click on the word 'here'. Another reccomendation would be to give a quick example of the equation for work in the beginning, and you could have clerified some parts of the notes more. I could not understand the three lines where you wrote about output and input forces and then when you wrote either 1 or negative 1 and then I couldn't figure out if the dash after the number had to represent a dash or a minus sign? Although I did think that it was a good idea to put down the full word after the abbreviations on the answers to the worksheet(at the beginning), and you made sure you capitalized Watts and Joules and wrote seconds and meters all with lower-case letters! All in all great post, maybe a few confusing things here and there.
Davide - I know you had issues with this post and for the most part things have been fixed well. You have covered what was done in class thoroughly, although some of the science is off. When you look at mechanical advantage, two of the results should not be change direction. Plus, it is really hard for a reader to understand the math if you have not included any examples of the problems. You also haven't explained the questions from analyzing data, which makes your answers less understandable to the reader. The colors are okay, but lack of bold words and some spacing issues make this post a bit difficult to read. I am glad you have linked to Moodle and the video you watched, but you have not included any videos or links that help explain work, machines, efficiency, mechanical advantage and these were the things we focused on. You have one picture, but it is not captioned and I am not sure how it is related to this topic. Again, you covered everything you needed from the class, but you have not included other helpful information. Spelling, grammar & punctuation look good overall. Next time be sure to read the rubric more carefully before posting. ~Ms. D.
ReplyDeleteHi Davide!
ReplyDeleteSorry about the earlier comment, I didn't know you had issues with the color.
I really like this post. You had good detail about what you did in class, and you had a good use of hyperlinks. Some things you could have improved on, though, are including more pictures, explaining the formula for work, etc. You could have included all of the steps (formula-plug-chug) for the problems. You also could have a link to the superhero project directions. Your text also cuts off in the middle of a couple of words in the definitions section. You could have had bigger titles so that it was clear that you were scribing for two days as well. Other than that, this post is a really good one that clearly explains everything that you did in class. Plus, you actually had emotion in your post, which is something that most people don't include. Great job!!!
Hey Davide! And... WOW! That's a huge post! And a very good one too! Your colors are good, but your post could have more pictures and telling the formula for work (like Viktorn said). But you still have a very detailed post, and by the way, very enthusiastic! You have good links and also thank you for the answers! As I can see, you have no spelling mistakes and your grammar is good too!
ReplyDeleteSo, overall, you have a very good post!
Hi Davide,
ReplyDeleteYour post was a great length and it had a great color combination for your text. But one problem I noticed was that you did not have any pictures, you also have no spelling mistakes.I thought that one other thing that made your post much better was that you gave all the answers to the homework and the work you did in class. You even defined the key terms and gave some of the notes from class. You also gave good definitions of input force and output force and you had a good use of hyper links even though you only had one.
Vance