Wednesday, March 13, 2013
Current Event 1 Quarter 3
Tuesday, February 5, 2013
Lab Report - Weights and Waves
Does the size and weight of an object determine the size of the waves it makes?
Hypothesis
I think that the size/weight of an object does affect the amplitude of the waves produced.
Variables
- Controlled: Water, pan
- Manipulated: Size and weight of objects dropped in
- Response: Amplitude of waves.
- Fill pan with water.
- First, drop the 1 pound weight in. Record the height of the waves (roughly) in the data table. repeat the process two times. Remove the weight.
- Next, drop the 2 pound weight in, and so on. Record all of your observations in the data table.
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Item
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Trial #1
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Trial #2
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Trial #3
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1 pound
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2 pound
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Cork
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Metal ball
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Sunday, January 13, 2013
Wave Lab Report
When a wave hit another wave, they bumped into each other, yet kept going on their own ways, like nothing had happened. When a wave hit a barrier, the wave would crash into it and would not keep going, because there was something blocking its way, so it would just dispel. If there was a split in that barrier, though, the part of the wave that was heading toward that split would keep going, and the rest of the wave would hit the barrier that was obstructing their path. When a wave hit the other side of the pan, it would just bounce back.
Simulation
In the simulation, I found many things, but quite a few of them were already covered by the lab. One thing that was shown was that the more drops that were dropped, the more waves were created. Also, the bigger the drop, the bigger the waves it creates. The simulation is a great was to find out things about waves.
CONCLUSION
1. When water is dropped from a pipette into a pan of water, how do the waves behave? The waves roll outward, away from the point of impact.
3. How do waves interact with each other and with solid objects in their path? When waves hit each other, they bump into each other, yet then move on and keep moving in their path. When they hit solid objects in their path, they crash into the objects, and that stops their movement.
My hypothesis was somewhat correct, but only somewhat. I wrote that when waves meet, they crash into each other, but not that they move on with nothing changed. I also wrote that when they hit solid objects in their path, they crash into them and find their way around, but that was proven not necessarily true in the lab. The waves crash into the objects and their path is interrupted, so they do not roll anymore. When the waves hit the side of the pan, however, they bounce back.
Further Inquiry
I think there were some things that went wrong, perhaps the time when the waves went under the cork rather that carrying it along with them. I think that's what should have happened. Also, what was interesting was that some water was stuck in the cork after the previous experiment, so that when we put the cork in the pan, the water leaked out of the cork, and, as a result of being in the cork for so long, the water that leaked was yellow. I would really like to find out why, when the waves hit the clay, they did not just bounce back like they did when they hit the side of the pan.
Tuesday, April 24, 2012
H1N1 Essay
Friday, March 23, 2012
Are Viruses Alive? Or not.....?
Resources:
http://serc.carleton.edu/microbelife/yellowstone/viruslive.html
http://answers.yahoo.com/question/index;_ylt=AjyfHkZ.7arQCjpdnEvtQRAjzKIX;_ylv=3?qid=20080818175050AAVzWEg
Sunday, March 11, 2012
Cur. Ev. 3rd Quarter No 1
Sunday, November 27, 2011
Cur. ev. 2nd quarter No 6
Creepy Crawlies
My thoughts
Monday, November 14, 2011
Cur. ev. 2nd quarter No 5
Petra 6A
http://www.cbc.ca/video/news/audioplayer.html?clipid=2166737038
Nov. 12th 2011
66 Legs of Discovery
In 2000, buried deep in the Burgess Shale located in the Rocky Mountains, an amazing discovery is made: The 3m long track way of an ancient predator known as the Tegopelte. The track ways were about 12-15cm wide, telling to paleontologist Nicolas Minter, who was studying this fantastic creature, that the width of the Tegopelte was 12-15cm. They found that the Tegopelte had 33 pairs of legs and that each track was spaced around 20cm apart. They also found the way that the prehistoric animal walked. It placed one pair of feet down and then quickly raised it up while putting down the one behind it. This method of walking is similar to that of the millipede. The Tegopelte was a predator on the ancient sea floor over 500 million yrs ago.
My Thoughts
I think that it’s really cool to learn about creatures from the past, and that the Tegopelte is a fascinating creature. I enjoyed learning a=everything I could about it.