Posts

Wave Motion | 3/4/19-3/8/19

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Thoth08BigasDrumEvansChalmette  by  Infrogmation Summary:        Sound waves are longitudinal waves, meaning that the energy that they carry travels parallel to the wave. Sound waves are also mechanical waves, which means that they must travel through a medium such as a solid, liquid, or gas. With this, sound waves also travel through different mediums at different speeds. Due to how atoms and molecules are packed tightly together in a solid, sound waves are immediately transferred to the next molecule. Thus, in solids, sound waves can travel very quickly without losing energy. In a liquid, atoms and molecules are touching, but are not fastened to each other as strongly as a solid. In results, some of sound's energy is wasted when pushing the particles around (in a liquid) because they can slide past each other. This is due to how sound cannot travel across gaps between molecules, which can slow a sound wave down. In a gas, molecules are far apart, s...

Sound and Music | 2/25/19-3/1/19

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“What effect can very loud music have on your hearing?” In your answer provide specific evidence, including organ names to help substantiate your claim.        The effect that very loud music can have on your hearing is that eventually, your hearing will begin to decline. As when consistently listening to very loud music, your hair cells inside of your inner ear will begin to become overworked and will die. This will causing leaking in your ear which is what creates the ringing sound in people's ears. When your hair cells begin to die, your hearing will become progressively worse as the hair cells are what allow your ear to interpret sound and so that the brain can understand the signal. Not only will your hair cells be affected, but so will the cochlea which will really damage your hearing. In closing, loud music will cause damage to the cochlea and more specifically the hair cells. This will result in ringing in your ears and your brain not being to understand soun...

Roller Coaster Project Blog

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Summary:        In order to successfully complete this project, you must have designed (and sketched) a roller coaster made of pretty common materials (a marble, insulation tubing, tape, popsicle sticks, straws, etc.). In addition, you had to create a timeline (which is the presentation) of your roller coaster along with an analysis. The analysis consisted of questions revolving around physics (force, velocity, acceleration, energy, etc.). Through this project I learned that the only real way to generate enough force to move a roller coaster (through the whole course) that is only pushed by gravity is by beginning with a big drop. On top of this, it is impossible for the height of the hill to be greater than the height at which the marble is initially placed. Due to how it is impossible for the marble to generate enough energy to be able to go up something larger than which originally placed. This is because the amount of potential energy at the top of the hill is...

Roller Coaster Physics | 2/4/19-2/8/19

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Goliath (Six Flags Over Georgia) 02  by  Coasterman1234 Summary:        When creating a model of a roller coaster (so their is no motor or any other force acting upon it besides gravity), the factors that determine the amount of force/energy a roller coaster has are the mass and speed of the roller coaster. Also, when there is no friction, the only factor that affects the final speed of a roller coaster is the total height lost. Total height lost is equal to the first hill's height subtracted by the final hill's height. For example, if you have three hills where the hill's heights are 100 cm (for the first hill), 30 cm (for the second hill) and 60 cm (for the last hill), the total height lost is 40 cm. This is due to how 100 cm subtracted by 60 cm is equal to 40 cm. Thus, the total energy of the car does not change when going down a hill. In addition, hill two does not have an effect on its final speed. S&EP 1-Asking Questions and Definin...

Energy | 1/28/19-2/1/19

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Summary:        K inetic energy is energy an object has due to its motion. Potential energy is energy that is stored and waiting to be used later. Three types of potential energy are gravitational potential energy, elastic potential energy, and chemical potential energy. Gravitational potential energy is potential energy due to an object's position. Elastic potential energy is potential energy due to compression or expansion of an elastic object. Lastly, chemical potential energy is potential energy stored within the chemical bonds of an object. The formula for finding  0.5(mass x speed 2 ) . The formula for finding gravitational potential energy is mass x height x gravity. Both potential and kinetic however are scalar quantities meaning that they do not have direction. Both also are measured with same metric unit, this unit is known as Joules. One of the Charts From the Simulation that I Computed S&EP 5-Using Mathematics and Computational Thinkin...

Force | 1/14/19-1/18/19

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Force  by Penubag Summary:        Force can simply be defined as a push or pull. Force is energy that results from a movement. Force also has a unique relationship with vector quantities as is it is a vector quantity, but it is also the thing that creates vector quantities. This is because a vector quantity is created by a force that has magnitude and direction. Due to how force and motion are directly correlated, force has much to do with motion. The first of the three laws of motion (according to Isaac Newton) is that objects in motion tend to say in motion. At the same token, objects at rest tend to stay at rest (this is also known as the law of inertia). The second law is, "the acceleration of an object as produced by a net force is directly proportional  to the magnitude of the net force (how big the force is), in the same direction, as the net force, and inversely proportional to the mass of the object (how heavy the object is)." In other words...

Science WAC - Are self driving cars worth the risk? | Nicolas Reed | 1/7/19-1/11/19

nreed1005 Ms. Garcia Science 8 1/11/19 Self Driving Cars Are Not Worth the Risk         Currently, the world is debating about whether or not we should use self driving cars. This topic has created tons of controversy and currently, we are torn on what the right decision is. Self driving cars are not worth the risk. Not only will these machines take people's jobs, but they also have other faults that will affect humans. They are simply not completely ready and sophisticated enough to be used. Most importantly, these vehicles will put many people’s lives in danger.        The use of self driving cars will create many issues that will affect many people. As according to the video titled, “The Pros and Cons of Autonomous Vehicles” by the Tech & innovations Channel, “According to certain estimates, about 4 million people are going to lose their jobs” due to the upbringing of self driving cars (autonomous vehicles). These jobs include t...