windmill- breanna gordon

Calculations
39.37x9.82x11.03=398.21/16.6 = 23.99

* energy+398.21 joules

*power=23.99 watts

1. Airplanes and windmills both use air pressure to fly, without the pressure they would not be able to fly at all. The pressure helps hold the airplanes be held up in the air and fly. The air pressure makes the turbine spin to make energy.

2. If you do not twist the rotor blades at an angle they will not spin as well as they could compared to if they were straight.

3. The rotors on a windmill are a lot like the sail on a sail boat because they both are used to catch wind.

4. One of our rotors did not work at all because it was not sturdy enough, our other rotor was more sturdy and it worked.

5. The windmill that had the most output used rulers and was more straight and sturdy than others.

6. There wasnt really to many limitations it depended on how creative you were and how hard you pushed yourself.

Wind Turbine--Shelby!

**WIND TURBINE BLOG!  Shelby!(:

How does an airplane and a wind turbine use air pressure to rotate? It's called the Bernoulli's Principle.This is when the increase in the speed of a fluid produces a decrease in pressure and a decrease in the speed produces an increase in pressure.

Why was it necessary to twist the rotor blade at an angle?

Because of the angle, it's easier to catch the wind and spin. If it was just a straight on, it would barely spin at all, and then we wouldn't create any energy!

Explain how rotors on a windmill and sails on a sailboat illustrate the same principle.
We basically made a model of a windmill with our pin wheels. The rotors on those are very similar, although its all about the structure. The better the structure, the more the rotors will spin and energy is going to be produced. This also applies to the airplanes and windmills.

Which rotor had the most power and why?
Kristin and Maddie's. Theirs was cleverly made. They went outside the box and built theirs out of plastic rulers welded together. Their blades were long and thin, yet still light in weight because it was made from plastic. Everybody else was pretty much sticking to the "pinwheel" design as well. Our planes were short and fat. Where as Kristin and Maddie made one that was similar to our modern day wind turbines. It was quite successful, and therefore, produced the most energy.  

What was different about the windmill w/ the maximum output?
(Stated above)

What are some of the limitations of the model?
There aren't very many not-so-good things about the model since it was cheap and still created a lot of power. I'd say the material couldn't withstand being an actual full-sized wind turbine (obviously) because it would crack and break off easily. But as a Science project, they get an A in my opinion! (: More people should have followed their 'long-and-skinny-slightly-tilted-not-a-pinwheel' design.

--SHELBY

windmill blog--Meg Trumper

our calculations:

energy=398.21 joules

power= 398.21/16.6 sec.

total power= 23.99 watts

39.37*9.82*11.03=398.21/16.6=23.99

How do airplane and windmills use air pressure to fly and rotate?

Well, air planes and windmills fly and rotate from the air pressure, by taking the wind (or air pressure) that is blowing onto it, or it is going through. The wind is like caught in the the curves of the rotors, or blades, making them move. I think it depends on how much air pressure their is, though!

Why was it necessary to twist your rotor blades at an angle?

It was necessary to twist the rotor blades, because it has to be there to basically catch the wind, and scoop it up, so they can move. With out any twisted-ness it cant spin, and it wont be moving!

Explain how rotors of a windmill, and a sail of a sailboat illustrate the same princible.

Well, the both make the things move! They both convert energy from one type to another.They both turn kinetic energy into electricity.

Which rotor had most power and why?

Kirsten's rotor did the best. Because, hers was long and thin, with a slight curve. It was almost perfectly set up! Actually, it was!

Who had the highest max. output ? why, what made it go, what was different about her design?

Kirstens...becuase as I said before, it was long, skinny, and slightly twisted. So, it was unlike everyone elses...because all of ours were all short and fat!

What are some limitations of the model?

The had to be slightly curved to grad the air pressure, and they had to be long, so they could turn more easily.

Madeline's Windturbine Blog

1. How do windmills and airplanes use air pressure to rotate and fly?

Windmills and airplanes use air pressure to rotate and fly by using what is called Bernoulli's principle. This is when the difference of air pressure forces lift on airplanes and the turbines to turn.

2. Why was it nessecary to twist the rotor blades at an angle?

It was nessicary to twist the rotor blades at an angle so the blades could catch the wind and spin more easily, providing more energy.

3. Explain how the rotors of a windmill and the sail of a sail boat illustrate the same principle.

The rotors of a windmill and the sail of a sail boat both illustrate Bernoulli's Principle.They both illustrate this because the curve of the blade or sail increases the speed of the wind at the point of the curve. This causes the air pressure to change on one side. With different air pressures on each side of the blade or sail, they will move.

4. Which rotor had the most power? Why?

Kirsten and Madison's. Their windmill had the most power because thier blades were long and skinny-- the ideal design for windmills. Also, the blades were at an angle-- which helped catch the wind. Finally, their turbine was light enough to turn easily, not not so flimsy that it broke.

5. The maximum power in the classroom varied. What was different about the design that produced the most power?

Kirsten and Madison's design was different because as I just mentioned, their blades were long and skinny. Lots of other designs, including mine, were more short and thick. The blades were at an angle and the weight of the windmill was just right!

6. What are limitations of the models?

The limitations of my model were that it was rather flimsy. If the wind had gotten super powerful, there is a good chance that my model would break. Also, my models was very short and thick. If I were to do this again, I would build a windturbine more sturdy as well as longer and thicker.


Length of string:  85 cm
Total washers lifted: 7
Mass of washers: 50.02 g
Seconds needed to lift string: 41
Amount of energy produced: 12.4 W

Madison Koonce's windmill questions

1) It was necesary for the blade to be at an angle, because if they were straight on, the wind would just blow and the blades wouldn't catch the wind and use that energy to push the next blade around.
2)Roatrs on a windmill and the sail on a sailboat both work with the bernelli's principal. When you have air pushing towards your object from a farther distance you will have more energy to move the sailboat or the turbine.
3)Our ruler windmill had the most power.
4)Limitations on this model could have been that the rulers had holes in them, allowing the air to go past the blades. We later taped the holes so we could keep adding weights.
5)The difference between the maximum out put and others were that we didnt follow the pinwheel model, our blades were at an angle, and we took the bennelli principal into consideration when posistioning our fan.
6)Airplanes and windmills both use air pressure, when the wind (kinetic energy) turns the blades which turns into mechanical.

Number of Washers	Mass	Time in seconds	Height (meters)
17	122.26	15	.86
18	128.45	15	.86
19	155.66	21	.86
20	143.0	30	.86
21	150.4	18	.86
22	157.8	17	.86
10	69.07	29	.86
16	114.89	14	.86

Windmill blog: Tristin Snyder

1.The blades on an airplane take the air that is standing still and pushes it backwards. The wind pushes the rotors on the angled parts. It pushes one way making it go around.
2. If the blades weren't twisted the wind would just push on them and they wouldn't spin.
3. They both catch the air and use it to push them.
4.Madison and Kirsten's rotor
5. it was longer with skinnier blades. it had more of an angle than ours
6. Some limitations of our windmills are flimsy blades. They would start to bend if there was wind and it wasn't turning

Windturbine-Bergndi!:)

-How do an airplane or wind turbine use air pressure to rotate.
--The wings on an airplpane use air pressure to help the fly the plane, sort of like a bird uses its wings to fly! A wind turbine uses airpressure by the wind turning the blades on the turbine.

-Why was it necessary to twist the rotor blade at an angle.
--It was necessary because if the rotor blade was straight, the wind would hit it straight on. This would make it more difficult to turn the blades.

-Explain how the rotors on the wind turbine & the sail on the sailboats illustrate the same principal.
--On a sailboat, the wind hits the sail at an angle. This is why its possible for a sail to steer a boat. Turbines use this method too.

-Which rotor had the most power and why?
--Our first rotor (the big pink one) worked best. I think this is because the blades were longer, and a bit bigger than our other rotor.

-The maximum output of other wind turbines varied in our class. What was different about the turbine that had the maximum output?
--The difference between Maddy and Kirsten's wind turbine and ours was that there's was smaller, and thinner. Thats why it worked better i think. It was easier for the wind to spin the blades!

Wind Turbine

Medium Speed- 6 washers

39.37grams x 9.82 x 1.05 meters = 398.21 j.
398.21/16.6sec = 23.99w

Airplanes and windmills fly and rotate from the wind pushing against the blades of the turbine.
It was necessary to turn the blades at an angle because otherwise the wind has to have a way to get under it and push it which makes it spin. The rotors on a windmill and the sail of a sailboat illustrate the same principle, because they both use wind to move. The sailboat sail is loose so when the wind blows on the sail it goes forward. When the wind blows on the rotors it makes it turn. Our rotor that was made of Card stock paper produced the most energy. Our other one was made of Aluminum foil. The reason why the card stock worked better is because it was bigger, stronger, and curved more. All these properties helped catch the wind more, therefore it spun better. The difference between mine and the one that made the most energy is the design. Mine was big but it was wide. Thiers was long and thin.

Tristin, Drew and Bret's video

Lena Maddy and Kirstie science project

meg and breannas project

http://youtu.be/Y1cc5w99UiA

meg and breannas project

http://youtu.be/Y1cc5w99UiA

Drew, Bret, and Tristin's Video

<iframe width="560" height="315" src="http://www.youtube.com/embed/WpA_E9juWAI" frameborder="0" allowfullscreen></iframe>

Cancer Blog

5 things i learned

1. I Learned about the different stages of colorectal cancer.
2. I learned about the age groups that will most likely be affected.
3. I learned how cancer cells are different from normal cells.
4. I learned how cancer cells mult. alot faster then normal.
5. I learned how how the cancer can spread to different parts of the body.

i dont really have any questions but i dont really understand how the cells dont have checkpoints.

I liked this because i got to learn about different cancers and how they affected people.

Shelby's Cancer Blog

5 Things Learned:

1. About the different types of treatments for cancer. I only knew about radiation and chemotherapy.
2. I learned about the meiosis structure and the transformation of reproductive cells.
3. I really didn't even know exactly what cancer was! I learned it's when an abnormal cell duplicates at a rapid pace and creates tumors.
4. I learned all about different types of cancers. My cancer was leukemia, which I had no idea what it affected, or even was. But I learned it's when your bone marrow stops producing red blood cells, white blood cells, and platelets. This can cause extremely serious issues including it being more easy to internally or externally bleed and get infections.
5. What haploids (half) and diploids (times 2) are.

Unanswered questions:

1. If you could do both Radiation and Chemotherapy

2. Can plants get cancers?

I liked the group activity! I think it's always fun to work together without a teacher sometimes to find things out on our own... I also enjoy those kinds of activities rather than taking note after note after note. I feel I absorb the information better.

I didn't so much enjoy not doing as many experiments with cancer! I actually enjoy getting in there and doing labs. I love the visuals, and I would have really liked that.

Uhh..Cancer project blog?? --Bergndi;)

*While doing our "Cancer Projects" i learned many things! So, ive composed a short list.
1. Not all tumors are cancerous. For exampple, if you have a Benign tumor, its not cancerous. However, if you have a Malignant tumor...well you have cancer:/

2.Leukemia isnt just for children. Many adults have this disease too!

3.Chemotherapy & Radiation are not the only treatments for Cancer. Theres also Surgery, hormone therapy and more!

4.Some sorts of Soda can cause cancer? Wierd..
No wonder were not supposed to drink it..

5. When were born, we have cancer cells in our body no matter what..! Scary!!!!!

--Hmm..Do i have any questions??
Not really. Only how does a cell skip a checkpoint??

--I liked this project! It was interesting learning about all the different types of cancer and ways to prevent it!

--Things i didnt like? Well...i thought this assignment was a tad ibt depressing to be quite honest..

Unit Blog, by Meg Trumper(:

5 Things that I learned during this unit--

1. I learned that there are various ways to treat cancer..I thought that there was only chemotherapy for some reason. But, now I know that there is chemo, radiation, surgery, and muuuch more.


2. I learned that you are at a much greater risk of getting melanoma if you are older, and your have pailer skin.


3. I learned that there are two seperate kinds of cellular division..meiosis or mitosis. Meiosis is with sexual reproduction and then Mitosis witch is like making more skin cells.


4. I learned that with cellular division there alot of steps. Like Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophase, and Cytokinesis.


5. I learned that there are much more things to cancer and cellular division, than I could ever think of..and I'm sure there is much more to learn about that we havent already.

2 Questions I have about this unit--

1. How did the first scientists know about how cells divide?


2. How does the cancer develope in certain areas? Like why does it happen in the breasts, or in the lung, or the stomach?

1 thing I didnt like about this unit--

• I liked this unit a lot and there really wasnt anything I disliked--Umm..what didnt I like? The fact that cancer exists.

1 thing I did like--

• I liked learning about cancer because I just lost my grandma from it in December, and I liked knowing how it happened in her body.

Things i learned-- Lena Westra

I learned that the older you get the more of a risk you have to get cancer.
I learned that Colorectal cancer is the most preventable cancer.
I learned that Colorectal caner is the 3rd most commen cancer in men and women.
I learned that a bad diet and little excersise can be a risk of getting cancer.
I learned that kids need to start wearing sunscreen now because in 2o years or so you could have a greater chance of skin cancer.

How does cells skip a checkpoint?

I liked learning about the different types of cancer and what are risks and symptoms of them, and also haveing to be the "doctor" and figure the stuff out our selfs.

I didnt like being in groups, because you have to depend on them to get their stuff done too, and you have to all kind of share information and if they didnt research their part of it then it made it harder.

Cancer Project

Some things I learned when we were doing our cancer projects is;

• The older you were the more likely you were to get colorectal cancer
• Your diet and how much you exercise was a big part in how bad your cancer is
• There are many different cancers
• Cancer cells don't die on their own
• You already have cancer cells in your body.

A question i have is, How do the checkpoints stop working?

I liked this project becuase it was fun.

Something i didnt like about it was that i didnt know what to put on all of my slides.

THINGS THAT I LEARNED:

I learned that smoking is not the only thing that cases cancer and that there are lots of other risk factors.

I learned that radiation therapy is not as effective as most treatments like surgery.

I learned that just because Melanoma first effects a mole it is uncommon and very deadly.

I learned that cancer can move it does not just pop up in random places.

I learned that cancer can be removed.

QUESTIONS:

How does a cell skip a checkpoint?

LIKES & DISLIKES:

I liked hearing about the possible cancer cures.

I disliked the fact that extreme overexposure to sunlight can lead to cancer. Because I play on the golf team.

Madeline's Cancer Unit Blog

Five facts that I learmed from our cancer unit were:

• What Chemotherapy does to get rid of the cancer
• How cancer is developed
• What metastasis is and how it works
• Why cells divide incorrectly
• What carcinogens are

One question that I had that wasn't answered dureng this unit was: What is a bone marrow transplant and how can it help fight off cancer?

Something I liked about our cancer project was the general idea of the project. Everyone having different jobs and different things to reasearch was just a great idea!

One thing that I didn't like about the project is that I felt as if I didn't know for sure what exactly to include in my portion of the presentation.

Cancer Unit

Five things learned:

• Cancer can run in the family.
• You can get skin cancer from being outside too much even when it is cloudy.
• An unhealthy is a major risk factor for getting cancer.
• Everyone is born with cancer.
• Coke can potentially cause cancer.

I like knowing more of the risk factors for cancer so I can try to stay away from those and eat healthier.

I didnt like how fast the cancer projects went by.

What i Learned

I learn a lot of things from this Cancer Project. Some of the things I learned from this are:

1)Malignant- a tumor that is cancerous

2)Benign- a tumor that is not cancerous

3)Carcinogens-chemicals that are know to either stimulate cancer or cause cancer

4)Metastasis- how cancer spreads through the body

5)Cancer cells produce much more rapidly then normal cells.

some things that i like about this project was using the Google docs and being able to see how your partners are doing in the project and another would be that you can chat on there if your partners are on at the same time as you.

i think the only question that i have that didn't get answered was why do cancer cells reproduce faster then the normal cell? i know that cancer cells don't have certain checkpoints but do they only miss that checkpoint or do they just reproduce with no checkpoints at all?

Tayler's science blog

Five thing I learned:
1. if you have family history, you have a more likely chance of developing cancer
2.moles can change color and size when you have skin cancer
3.you need more exercise than usual
4.even Dogs can get Melanoma
5. all the cell cycles have different names

what i liked:using the ipad/computers

what i hated: the presentation

Madison Koonce cancer answers/questions continued

Five things i learned were:
1) When skin peals it is because the suns rays completly killed that layer.
2) Men and women can get breast cancer.
3) Chemotherapy is used as a prevention of cancer as well as a treatment.
4) You can get genetic tests to see what your risk of gettinga certain cancer is.
5) I also learned that the air i breathe is full off toxins that can cause cancer, just like how some
people who are around second hand smoke get lung cancer as well.

Madison Koonce cancer answers/questions

I really liked this cancer project. I liked how we had one specific job, but still learned and had a little part in all of the other jobs as well. I thought i learned about the symptoms really well, because we had to find the cancer ourselves. The website that we had to look off of with questions we should answer, helped a lot. I also really liked how we had one specific cancer to each group and not just cancer in general.

There really wasn't too much that i disliked about this project, besides the fact that we didn't have a ton of teacher student time, because of conflicts. I wish we could have done a poster, or something else rather than a power point. Sometimes i felt as though i was doing more of someone else's job then they were as well.

I still have questions on why can certain foods trigger cancer, whats the difference between adisease and cancer, and what is the difference between a genetic cancer and a cancer that is formed?

Kirsten's Thoughts on the Cancer Project

Five things that I learned after doing this cancer project were:

1. There is no such thing as a safe tan. If you are outside or in a tanning bed the rays still could be harmful.
2. What carcinogens, chemicals that are known to cause cancer, means.
3. The difference between the rate of speed that the cancer cell divide and normal cells divide and how much faster the cancer cell spread.
4. When checkpoints don't see the mutation and let the cancer cell continue through it's cycle.
5. The things that you do in your life can impact the chances that you have to get cancer. If you have a poor diet and are overweight you have a greater risk then people that eat healthy and exercise regularly.

Questions that I have:

1. What does Benign and Malignant mean?

One thing that I liked:

1. I really liked trying to give someone the best chance to live and help out the patient and the family members. Also I enjoyed using google documents.

One thing that I didn't like:

1. That some people didn't do their slides so you didn't get to know that information on your patient.