Adv Science

Summary:  During this week, I learned about electromagnetic and mechanical waves. I learned that a mechanical wave needs a medium to pass through. I learned that an  electromagnetic wave didn't need a medium to pass through--since radiowaves are electromagnetic waves, they can pass through space easily. I also learned that the trough was the lowest point of the wave and that the smaller a wave was, the higher the frequency would be. I learned that a frequency measured how many waves passed in one second. SP1: Asking questions and defining problems.  I asked questions such as "How would people measure radiation waves?" and "How would people identify a surface wave." I also asked questions such as "Are there any special devices to measure different waves?" Image Link:  What did the beach say to the wave? "Long tide, no sea."  

Summary:  During this week, I learned that if you hit an object against a hard surface and stick it in a glass of water, it will actually cause the water to jump. Another thing that I learned was that when the ear detects sound waves, there are tiny hairs inside of the ear past the eardrum that turn the waves into vibrations, which nerves send to brain, and the brain analyzes that as sound. I also learned that there are three tiny bones inside of the ear that help pass along the vibrations. SP3: Planning and carrying out investigations.  I carried out investigations when I completed a lab involving tuning forks, ping pong balls, and a cup of water. I tested things over and over again and revised my thoughts when I found that you had to hit a tuning fork in a specific area for it to vibrate enough to get the water to jump out of the cup. Image Link:  What do you get when you drop a piano down a mineshaft? A flat miner.  

Summary:  During this week, I learned that sound travels 18 times faster through solids than through air. Another thing I learned was that when you hit a glass bottle filled with water, a solid sound is produced (meaning that is it not wispy, like a flute sound) because the object hit the glass, causing it to vibrate, which causes the water to vibrate, and the water causes the air to vibrate. The sound is sharp at first and then becomes quelled because it travels a little bit more slowly through the water and then even slower through the air. SP1: Asking questions and defining problems.  I asked questions such as, "How could one produce a sound that mirrors guitar strings?" and "How would you be able to tune an instrument to make it go back to its natural state-- would you push in to make it sharp/flat, or push out to make it sharp/flat?" Image Link:  I had to make these bad chemistry jokes because all the good ones Argon.