On Monday we had to do an experiment to figure out which would change the temperature of 500 mL of ice water more, 10 mL of 50 degrees Celsius or 100 mL of 25 degrees Celsius. I predicted that the 10 mL would heat up the water more but I was wrong. The 100 mL changed the temperature of the water by 1.5 degrees Celsius and the 10 mL of water didn't even change the temperature. This is because there was more energy added to the system. To help understand this concept, we watched a video. It explained that if you had a teacup full of $100 bills and a bucket full of $50, the bucket would have more money in it, which represents the energy. So even though the bills themselves are worth less, as a whole they have more energy than the teacup.
On Tuesday, we learned that the degree of hotness only depends on the speed whereas the quantity of hotness depends on mass and speed. The degree of hotness is the temperature and the quantity of hotness is heat. In previous science classes, we have been taught that energy is like Baskin' Robin's 31 flavors basically and that there is many different "flavors" of energy. Mr Abud made a statement to help us understand this which was that if you scooped vanilla ice cream out of the container, it wouldn't turn into chocolate when you put it onto the cone. There is just ONE flavor of energy. It is just energy. Energy is energy is energy. Energy can be stored and transferred in different ways. So really, all energy is the same, and just stored different.
On Wednesday, we learned more about energy. Energy maintains its identity after being transferred, it doesn't change into a different type. Energy can be stored and it is substance like, but isn't a substance that you can touch. It can flow or transfer from one system to another. The different ways that energy can be stored are the following:
1. Thermal Energy (Eth): Energy stored by moving particles.
2. Phase Energy (Eph): Energy stored in the system due to the arrangement of particles that exert attractions on one another.
3. Chemical Energy (Ech): Energy due to attractions within molecules.
On Thursday, we did an experiment to figure out how the temperature changed in a system based on the energy we added to it. we put a glass of ice on a hot plate and kept the temperature at a medium hot so that it would transfer from a solid to a liquid to a gas. We only made it to about 95 degrees Celsius but the general trend of the graph of the relation was that as we increased the energy, the temperature increased.
On Friday, Mr Abud wasn't there so we worked on a worksheet. I learned about what a triple point was, which was that it is a point where all three stages are present basically. Like the point where there was a little bit of ice, a little bit of water, and water vapor all in the system like it was on Thursday. At the end of class, we had a lockdown and we almost all died, but not really.
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