# ItownEagl3's Blog

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Regents Physics Topics

## Physics of a Frisbee

Two factors influence the flight of a Frisbee, gravity and air. Primary purpose of the rim is to create an airfoil with a deep curvature. As air flows over the top of the Frisbee, it speeds up and the pressure drops, creating lift. This is why my avg. pull in a game of Frisbee during the summer can be 80 meters or more, because the Frisbee is generating its own sustained force combined with the force I applied.

## Physics of a 1st class lever, a simple machine

Levers can be used to exert a large force over a small ditance at one end by exerting only a small force over a greater distance at the other. For a first class lever the force into usually equalls or exceeds the force of the load.

## Physics from Game 6 of the 2014 World Series Giants vs. Royals

.M Moustakas homered to right (391 feet). Moustakas hit a solo home run in game 6 of the 2014 World series. He scored the 10th run of the night for the KC Royals. He hit the ball 391 feet, or .119 km. The forces of Gravity and Air Friction acted on the Ball causing it to drop faster, but he still hit it hard enough to put it out of play for a homerun.

## Physics of a Solar Pannel

Starting at the barebones of a description all you have is an energy conversion, Solar energy into electrical energy. I'm sure you are familiar with the panels on your calculator, or maybe you were'nt. But the Photovoltaic cells rely on something called the photoelectric effect: the ability of matter to emit electrons when a light is shone on it. In the case of outdoor panels you have the photons from sunlight knocking free loose electrons from the silicon that is in the panals, a semi- condu

## Why does Dairy Queen tip their Blizards upside-down???

Well thanks to physics and an inside source, I have found an answer to this age old question. The reason they do this is to prove that, like the original marketing said, it's not just milk and soft serve. They stick a spoon in the Blizzard, flip it upside down, and if the spoon stays in position, it means the Blizzard is properly made. If it slips out, or the ice cream falls to the ground, it means that the soft serve is not yet ready for consumption. It's basically a way to prove to the custome

## The Physics behind making a house float- UP

How many balloons would you need to make the house float? Well to start you would need to estimate: -the size of the house -the mass of the house -the volume of air displaced -the size of each balloon -mass of rubber from balloons -calculate the net force for one single balloon -then calculate how much string you would need, but this would be a negligible weight estimate all of these and see if you could make your house float!

## Physics of Swimming

Swimming is known for being a full body excersize, this is very true. However, the physics of the sport is what matters here. The forces acting on a swimmer include mg down, thrust in the direction the swimmer is headed, drag in the opposite, and the buyonce, of the swimmer up. The thrust is from both arms and legs combined. While drag is caused by your whole body attempting to move through the water.

## Physics of Bridges

In principles of engineering I have learned that certain forces act on members of a bridge. These member forces are tension and compression. When a member is under compression, the members internal forces are being pushed towards its center. When a member is under tension, the members internal forces are being pushed out towards the ends. Sherri g forces of course come into play, this force is the cause of when bridges begin to twist uncontrollably and exponentially until the bridge ripes itself

## Physics of Portal

Portal is a 2007 first person platformer developed by valve.The game primarily comprises of a series of puzzles that must be solved by teleporting the player's character and simple objects using "the Aperture Science Handheld Portal Device", a device that can create inter-spatial portals between two flat planes. The player-character, Chell, is challenged by an artificial intelligence named GLaDOS (Genetic Lifeform and Disk Operating System) to complete each puzzle in the Aperture Science Enrichm

## How an MRI Works

Magnetic Resonance Imaging aka MRI, is a procedure used in hospitals to be able to see injuries beyond that of bone injuries, which you would use an X-ray machine for instead. An MRI machine uses a magnetic field and radio waves to create detailed images of the body. Anything from a brain scan, to scanning the muscle around your knee. No ionizing radiation is involved with an MRI, like that of a CT scan or an X-ray. As I was researching I found a story on how researchers from UCLA are using s

## Why are Golf Balls Dimpled?

The dimples are there to increase drag, albeit only slightly. But they increase something called "Magnus lift". The Magnus effect is the commonly observed effect in which a spinning ball curves away from its original flight path. A golf ball always has some kind of spin on it after it has been hit, whether it is backspin, topspin, or either direction of sidespin to hook or slice the ball. The ball below has backspin, Magnus force is acting as a lifting force from below the ball. Airflow is de

## What makes a ghost chili pepper hot?

The same question I'm answering now, I was asking myself as I ingested a ghost chili pepper a few hours ago. the pungency our tongues interpret as spiciness comes from a chemical compound known as capsaicin. This chemical is an irritant for mammals, including humans, and produces a sensation of burning in any tissue with which in comes into contact with. The Scoville scale is the measurement of capsaicin concentration. The ghost chili pepper holds the 1st prize for the highest on this scale c

## Physics of a Roller Coaster

A roller coaster typically begins with a chain and motor exerting a force on the cars to lift the train to the top of the first hill of the ride, which is also the tallest. Once the train makes it to the top and is pushed over the top of the hill, gravity takes over and it becomes an experience of energy transformation. At the top of the hill, the cars possess a large sum of potential energy. That potential energy is equal to the mass and height of that object. After the first drop the cars l

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