# A Blog

• entries
14
9
• views
5,834

I'm taking physics this year is because I want to know how things happen. Taking Physics C will help me understand the world around me, and teach me valuable studying techniques. It is a college level course and all. Over the next 9 months, I will be discussing real world applications of physics (to the best of my ability). Stop by every week for your healthy dose of knowledge and entertainment. Or don't, I'll still get an A.

## Double Dominos

Double domino's are relatively hard to explain so you should watch the video to get a good idea of what it is.  This is possible because the bricks are very wide. when the bricks fall, they lay on top of the one before it. the last brick in the sequence does not have anything to lay on so it falls to the floor. this causes the brick that is laying on it to fall as well and the next brick to fall and so on. This happens only when the bricks are placed a certain distance away from e

## Fiber-Optic Cables

fiber optic cables are used to send messages at high speeds and at great distances. There exists a fiber optic cable traveling from New Jersey to England! fiber optic cables work by sending pulsing light through a specific material. since light is the fastest thing in the universe, fiber optic cables are the fastest form of communication in the known universe. as you know, light travels at different speeds when its inside of a different median. the ratio of the speed of light in air to the speed

## Can Openers

The tab on top of a soda can is more complicated than it may seem. First, the tab acts as a second class lever. a second class lever is a lever in which the fulcrum is at one end and the load is in the middle. the load is the point where the tab is attached to the can. In a second class lever, the force only moves up. One example of a second class lever is a wheelbarrow. The rivet in the middle of the can is pulled up until it reaches a point where a small crevice opens up. once this crevice app

## Microwaves

I noticed a peculiar message on my package of noodles when making dinner the other night. It said something like "microwave on high (1.0kW) for 2 minutes". I was rather confused. I thought that all microwaves had the same cooking ability, but apparently not. The "1.0kW" section of the instructions indicated to the power of my microwave. The noodles required that I use 1000 watts of power for 2 minutes in order to cook properly. Electrical energy is calculated using E=P*t, and is measured in kilo

## Trampolines

Recently I went to Altitude, a trampoline park. Trampolines make you jump really high. Trampolines are made of a woven material that is connected to springs on all sides. These springs are what give trampolines their ability to throw people in the air. Lets say that the trampolines at altitude can make me jump 2 meters high. That would mean I have a gravitational potential energy of 1245 joules at a height of 2 meters. All of that energy would be converted to elastic potential energy when I jump

## Coin Flips

Does a coin have an equal chance to land on both sides? no actually. there is a 51% chance that your coin will land tails up compared to heads up. that is why tails never fails (only 49% of the time). This is because the head of the president on a coin is made of more material than the building or symbol on the tail side. There is a better chance that if you spin a coin on a table, it will land tails up. Certain coins can have an 80% chance that they will land tails side up. Keep this in mind ne

## Guillotines

A guillotine is a medieval weapon used for public execution of prisoners. the way that a guillotine works is a blade attached to two parallel tracks drops onto a persons neck, displacing their head from their body. the blade of a guillotine has potential energy when it is at the top of the tracks. that potential energy is converted into kinetic energy when the blade is dropped. the blade is able to separate a human head from a body because it has a lot of energy. normally, guillotine blades are

## Superelastic Collisions

We all know about inelastic and elastic collisions. inelastic collisions are when two or more objects stick together after contact. elastic collisions are when two or more objects bounce off each other after contact. what on earth is a superelastic collision then? first, an inelastic collision is when the kinetic energy before the collision is greater than the kinetic energy after. an elastic collision is when the kinetic energy before a collision equals the kinetic energy after the collision. t

## The Dead Sea

The Dead Sea is a lake that is bordering Jordan on the left and Israel on the right. The dead sea is special because it is the most extreme hyper-saline lakes in the world. a hyper-saline lake is a body of water that has high levels of sodium chloride. Hyper-saline lakes are saltier than the salt water that makes up our oceans. The dead sea is the most extreme meaning that it has the highest salt content of 33.7%. The salt water in the ocean only has a salt content of 3.5%. the dead sea got its

## Lava Lamps

Did you know that lava lamps don't actually contain any lava? lava lamps are essentially just wax and water. There are two things that make these substances unique: They have very close densities and they are insoluble between one another. the density of water is 1000kg/m^3. Insoluble means that the two substances don't mix. Water and oil are examples of insoluble substances.in lava lamps, there is a light bulb at the bottom of the glass container. the light bulb heats up the wax at the bottom.

## Vacuum Cleaners

So this weekend I had to clean my room. My room has a carpet floor, which means that I had to use a vacuum cleaner. Your vacuum cleaner consists of an intake, a motor, a bag, and an exhaust. A fan powered by a motor rotates causing a change in pressure. the angled fan blades push air through the bag and out the exhaust. this flow of air is creating a change in pressure. there is more pressure in the back of the fan than in the front, which creates a suction. the suction is what picks up dust on

## Cliff Diving

I've always wanted to go cliff diving, but it seems so dangerous. People have told me that if you fall high enough the water can feel like concrete. Also, if the water is too shallow, you could potentially hit the ground and get injured. The speed that you enter the water can lead to injury as well. You can reach speeds up to 25 mph when jumping from only 20 feet. jumping into water from a high point can disorient you when you land in the water. depending on how deep the water is, this can be da

## The Bloodhound

The bloodhound is a large, brown, lovable pooch that is known for it's keen sense of smell. The Bloodhound SSC is NOT a large, brown, lovable pooch that is known for its keen sense of smell. The Bloodhound SSC is the most complex racing car on the planet. This car can travel up to 1,000 miles per hour. Its less of a car however and more of a jet with 4 wheels attached to it. But nonetheless, the Bloodhound SSC is the fastest land vehicle in the world. The Bloodhound SSC has a rocket that reaches

## Pam Sapaleo

Hey All, First I'd like to thank everyone for taking time out of their busy day to read this. I was being literal when i said "busy day" because 99.9% of you reading this are taking AP Physics C, which means your busy reading to the blind or climbing mountains of homework. My name is Sam Papaleo. I play soccer, video games, some guitar, and I work at 2 Ton Tony's. I don't know what I want to be or where I want to go to college. I'm taking Physics C this year because last year I thought that

×
×
• Create New...