Observations: 1. The first step had to be repeated due to not following proper instructions. I did not grease the screw, so as I was shaking the mixture, solids were forming around the screwpart of the separatory funnel. 2. When adding 5.0 mL of NaOH to the unknown mixture and shaking it for about 30 seconds, layers had formed.
The observed emission data for the different elements did not look how they were supposed to. However the “peaks” for Hydrogen were found to be 534.52 and 631.24, 534.70 and 569.11 for Helium and 529.73 and 630.71 for Mercury. The Rydberg’s Constant found to 1.1x107 8.5x104 while the known constant is 10967758.34m-1. The percent error of 0.29% and the accuracy of this reading is 99.7. The slope and intercept of the linear regression line is -0.01 3.3x10-5 and 0.02x10-1 1.9x10-6 respectfully.
This experiment is called jumping Pop Rocks. You first fill a glass with water that is 140 degrees fahrenheit. Then you pour the Pop Rocks into the glass. Since the Pop Rocks are infused with carbon dioxide they will tend to jump at the bottom of the glass, or maybe even reach the top of the glass once they dissolve.
Physics was observed during a DHS girls lacrosse game by Newton’s Laws and in free-fall. Newton’s Laws consist of 3 different laws, the law of inertia, F=ma, and action-reaction forces. Free-fall was observed in the game when the lacrosse ball falls, and only gravity acts upon it. All in all, Newton’s Laws and free-fall was portrayed during the lacrosse game.
In this lab we used mechanical weathering to shake up sugar cubes inside of a mason jar. To complete the lab we needed to shake for 3 minutes to see how the mechanical weathering actually works. The sugar cubes represented the rocks and minerals. We used sugar cubes because they have a mass less than other rocks and minerals. I thought as we shook the cube it would just crumble into little bits.
2. Which physical properties did you examine in this activity? The physical properties that we examined in this activity were state, colour, texture, clarity, shape, and hardness. We did this by examining each powder with a magnifying class once we placed it on the watch glass.
Hailing from the small merchant village of Darkhearth Sanctuary, a little boy named Brickers Stonecutter was born the youngest of a middle class family. Both of his parents worked as merchants, and he had four sisters and a brother. Being taught at a young age that violence isn't always the answer, Brickers made a vow to himself that he won't lay hands on anyone who didn't deserve it. As the years went by, Brickers grew up and his family life started taking a turn for the worse. His father lost his job and started drinking heavily with whatever money he and his mom made; by this time his sisters and brother were out of the house and he was working as a merchant for the local temple.
In our mini-lab yesterday, we put sugar cubes in a jar and shook them for three minutes. The first jar had one cube, the second had two cubes, and the third had three cubes. We were trying to find the impact of the shaking on the sugar cubes. Our sugar cubes represented the rocks, and the shaking was an outside force. My group’s hypothesis was that the sugar cubes would break up.
My project is about how temperature and air pressure affect the distance a football can be thrown. When the air is warmer the molecules move faster and spread apart, therefore making the air pressure lower and making the ball lighter. But when the air is cooler the molecules move slower and move closer together, making the air pressure higher making the ball
One of the other examples of physics that is used in lacrosse is momentum, momentum plays an important role in lacrosse because without it we wouldn’t be able to pass, shoot, or catch the ball. The way that we change the momentum when we are playing is by the amount of push and pull that we use on our sticks, this causes how much energy is transferred into the head of our lacrosse sticks which then turns into velocity and the more momentum we have the high velocity we put into our passes, catches, and
Currently, the U.S. has accumulated roughly one trillion dollars worth of debt from student loans. (cite) But, what if student debt was forgiven overnight? Now if student debt was eliminated all at once it would be an enormous expense for private lenders and the federal government. Yet, people continually suggest the dissolution of student loans with a one-time payment plan from the government.
Developing a topic for Science Fair will never be easy unless you have a little background about that certain topic. One particular scientist is developing her topic by researching questions she has that revolved around her topic. The scientist will be researching how water temperature can affect the chemical reaction rate between baking soda and citric acid within a bath bomb. The independent variable will be the temperature of the water (mL). The dependent variable will be the chemical reaction rate which is formed by baking soda (g) and citric acid (g).
As the marble slides down the first drop it will lose much of its potential energy corresponding to the loss of height. The marble subsequently gains kinetic energy – kinetic energy is contingent to the mass and the velocity of an object. The marble speeds up as it loses height, consequently, their potential energy is transformed into kinetic energy. Newton’s Second Law states that an object’s net external force is equal to its mass times its acceleration; simply, the acceleration is proportional to the force applied and also the mass of the object.
Everyone knows the simple and easy experiment of vinegar and baking soda, but do you really know how it works. This paper will not only explain what makes these two very different chemicals react, but also what materials you will need to accomplish this easy science experiment. Baking soda and vinegar are two different chemical with two very different uses, they are not really even supposed to be used for a science experiment, take vinegar for example, some individuals use vinegar for cooking. Baking soda has a very different use, it is used for bee-stings. When vinegar and baking soda are combined, the hydrogen ions in the vinegar interact with the sodium and bicarbonate in the baking soda.
When the ball hits the ground its kinetic energy is turned into elastic energy this makes the ball flatten out. Then that elastic energy is converted right back into kinetic energy when it goes up. So the more kinetic energy a ball gets when it is dropped the more energy it will have when it hits the ground which will give it more energy when it is headed back up therefore making it bounce higher.
