Hello everyone who reads my post!!!
Today in our science class we talked about force, different types of force, gravity, spring scales, a little bit about friction, and that’s mostly it!
So, first, we watched three short videos about the things I listed (force, gravity). The first video was a man driving a car, this video showed us a few graphs and talked about acceleration. The second video was about a brave person, jumping from a very big height, from the top of the bridge. This video talks about the gravity. And the third video showed us some bicyclist, this video talked about the friction.
1.Green spring scale: 5N
2.Yellow spring scale: 50N
3.White spring scale: 30N
4.Red spring scale: 20N
5.Brown spring scale: 10N
So, as you can see, the green one was the most accurate. We also had to write, in our notebooks, what we know about Force. These are the things I would like you to know about force:
• A force is a push or pull. When one object pushes or pulls another object, you can say that the first object exerts a force on the second object.
• Like velocity and acceleration, a force is described by its strength and by the direction in which it acts. (Just a quick reminder: velocity is speed in a given direction; and acceleration is the rate at which velocity changes).
• Force is measured in the SI unit called the Newton (N). (SI is the abbreviation for the International System of Units, also known as the metric system).
• There are several types of forces: a net forces, unbalanced forces, balanced forces. A net force is the combination of all forces acting on an object. The unbalanced force can cause an object to start moving, stop moving, or change direction. Unbalanced forces acting on an object result in a net force and cause the change in the object’s motion. And balanced forces are the equal forces acting on one object in opposite directions. Balanced forces acting on an object do not change the object’s motion.
For homework, we have to read pages 42-50 in our textbooks. Also, some people have to comment for blog. And write the definitions (they are in your textbooks) for the following scientific terms:
• Friction-The rubbing of one object or surface against another.
• Static Friction- The force that resists the initiation of sliding motion of one object over the other with which it is in contact
• Sliding Friction- rubbing of objects in sliding contact.
• Rolling Friction- A force which opposes the motion of any object which is rolling over the surface of another.
• Fluid Friction- Conversion of mechanical energy in fluid flow into heat energy.
• Gravity- Gravity, or gravitation, is the force of attraction that exists between any two particles of matter (or any two objects). It is the force that holds planets in their orbits around the Sun, or the Moon in its orbit around Earth.
• Mass- A unified body of matter with no specific shape
• Weight- A measure of the heaviness of an object.
• Free Fall- The fall of an object within the atmosphere without a drag-producing device such as a parachute.
• Air Resistance- Wind drag giving rise to forces and wear on buildings and other structures.
• Terminal Velocity- The velocity with which an object moves relative to a fluid when the resultant force acting on it (due to friction, gravity) is zero.
• Projectile- A fired, thrown, or otherwise propelled object, such as a bullet, having no capacity for self-propulsion.
At the end of our science class we gave our notebooks, because the Acceleration/ Deceleration Testing Lab was due today. “Have a nice day”, was the last phrase Ms.D said to us today.
The links that might help you learn:
http://www.brightstorm.com/science/physics/newtons-laws-of-motion/law-of-force-and-acceleration-newtons-second-law-of-motion
http://www.edinformatics.com/math_science/force.htm
http://www.asknumbers.com/WhatisForce.aspx
http://www.racemath.info/motionandenergy/What_is_Acceleration.htm
http://www.theory.caltech.edu/people/patricia/gravtop.html
http://zagreb.ceesa.net/course/view.php?id=188
I HOPE YOU LIKED MY POST! ! ! AND THE NEXT SCRIBE IS… (NO DRUM ROLL) MARIA CHIARA!
Hey Tamara!
ReplyDeleteWOW! Your post is great. You had very detailed information on what we did in class. Your paragraphs were well written, and the font was big and clear. I think that the signs that you put at the top of your post were very accurate and helpful. Also, great websites! I had fun reviewing what we had done in class by looking at your websites and your post. I found your post very informative and professional! You did a great job in making your post fun to read also thanks to the exclamation points. I think that you could have put more spacing betwen the paragraphs and between the different bullet points. Great job with the grammar! If I were sick, I am sure that I would have underdstood perfectly what was going on in class. Your post was sarcastic, which made it fun to read and not boring at all. It wasn't too funny, which would have made it unprofessional and not serious. Overall, awesome post! Keep up the good work!
Davide
Hi Tamara!
ReplyDeleteThis is a really good post that covers everythng in detail! You showed what F, m, etc stand for which was great, because nobody did that before! Some things you could have improved were trying not to use yellow as a color, because it was very hard to read, and you could have explained what "SI" is. It was smart that you had all the links at the end of the post, but you could've explained what could be found in the links (one of the movies you watched, Moodle, etc.) Other than that, you had good grammar and your labels are correct! Awesome job!!
Hi Tamara
ReplyDeleteYour post was great, and I noticed only one grammatical mistake! All of the text you wrote was useful and there was no wasted space, it was long enough and your font colors and sizes were easy to read. You also did really well at describing what you did in class and the formulas. As well you had a great amount of links, but one thing I thought that you could have done to take your post one step further, was to give the definitions of the words you were supposed to define.
-Vance
Hey Tamara
ReplyDeleteGreat job on this blog post! I really liked how you had a lot of information but it was scientific as well. I thought it was good how you put the spring scales' data and which was the most accurate. It would have been better if you added a spring scale picture. All of the facts about force were helpful too. The links were relevant to your post and would help people who were missing learn about force. One more suggestion is tell us what SI means. I don't understand! The "Ms. D's last phrase" thing was irrelevant but other than that this is a really great post!
Ben
Hey TamarA!!! Nice post....It was, first, really long which took a long time to read, but it was very good! I liked the fact that you put put so many links! One suggestion though, next time you should put more pictures! As Vance said you have only one gramatical error, and as Viktor said you shouldn't use the color yellow! It was a brief post and keep up the good work!
ReplyDelete:) Court
Tamara, nice post. I liked it. I didn't however like that you only put one picture but that picture i thought was a part that you wrote. The formulas you put on the post were good. Like Courtney and Vance said you do only have one gramatical error but it was kind of hard to read the yellow. I love that you put so many links at the end of it and i love that it is very detailed about what we did in class. I think this is a really good post. Keep up the good work!
ReplyDeleteHi Tamara,
ReplyDeleteI think that your post had both good points and bad points. Some of these good points are that you definitely new what you were talking about scientifically. I know that you knew your science because you put down some good definitions of words like projectile and free fall. Another good point of your scribe was that you put 5 links to things that might help the 7th graders. Something good that you did that wasn't related to science was that your post has many colors and you used the right colors. One thing that you could have improved on in the layout of your post is that you could have put in more pictures because your post seemed like there was a little too much text. But it is still good how you did elaborate with your science. Overall without the spelling and layout errors it was a great post.
Reza
Hi Tammy
ReplyDeleteI really liked your scribe post. The thing I liked a bout your post is that you put what thing stand for what because nobody did that before. Now lets talk about the sites that you put on your posts i thought that they were grate. But i think that you should put some more video sites this are some that you can put: http://www.youtube.com/watch?v=lk5_OSsawz4
http://www.youtube.com/watch?v=9QpIWqBkSn0
The thing that you should improve next time. Do not use yellow bad color. Put more pictures. Explain what is "SI". After all it was grate post nice job:)
Hey Tamara!
ReplyDeleteI really liked your post! I especially liked the fact that you put in the links to all the different websites. Maybe you could have put in more pictures. I liked that fact that you gave the formula for force and listed all the different types of friction. I think you could've spaced you post out a bit more because it was a bit overwhelming. Overall, I really liked your scribe!
Tamara - nice work on your first Scribe Post of the year. Your spelling looks great, you have a few grammar errors and your use of font color is helpful. Although the spacing in places between paragraphs makes this difficult to read in spots. You have included just about everything we did, and an inclusion of the vocabulary words and their definitions was very helpful. your explanation of what we did with the force scales in class was rather confusing and really didn't get explained well. It would have been nice if you had some pictures, F=ma is something we have not done yet. But you did include a link of helpful links. Keep in mind you should also include a short explanation of those links to help the reader. Also, one of them did not work for me. Overall, you met majority of the requirements and have produced a nice first Scribe Post of the year! ~Ms. D.
ReplyDeleteHi Tamara!
ReplyDeleteI liked your post. I liked the colors and the font war easy to read. It was really helpful that you gave all the definitions and some exemplars of what you wrote in your notebooks about Force. It would have been nice if you had included some pictures. I liked the lines in the end, but you could have explanted what they show. I still think it is a good post.
Teréz
Hey Tamara!
ReplyDeleteGreat first post! I liked how you wrote because it caught the reader's attention and made it scientific but interesting. I think that you could have used a bit more pictures, but the most important part was the science, which I think was great because you included all that you needed and did during class, and you gave the formulas, the vocabulary definitions and some links, which were all very interesting but scientific. I also liked that you put Ms.D's last phrase, because even though it was not scientific, it was a very good ending, and I think it was nice that you made sure to tell us exactly how the class ended. I think you could also have written why the green scale was better, because it was the only one that was so different from the rest, so you could have included why all of them differed so much, and how you knew that the green one was better!
Overall though, I think it was one of the best posts done this year, because it was well written and scientific ( I cannot say if everything was right because I did not attend that class)!
Great start!