Nearly every person in the world will, at one point in their life, use a pen to record, solve of draw something on paper. However, no one stops to think how and why this luxury occurs. How does ink come out of the pen when writing but not while just sitting there? A few main factors determine the flow rate of the ink: the pulling power of the pores of the paper, the pulling power of the pen and the surface tension of the ink. The pores of the paper act like little mini hands that grab on to the
Here in the North East, skiing and snowboarding is popular activity that many people participate in. However, most people don't think about the gobs of physics behind gliding or falling down the hill. For the more skilled skiers and snowboarders, the experience of tumbling down the slope is not very present in their time on the mountain. So, the main physics behind their ride is friction and gravity. Obviously, gravity allows them to move and accelerate down the mountain. However, what many peop
The newest thing these days in the world of sports is artificial grass--or turf. Many professional teams, and even high schools like our own, are installing turf in order to reduce the maitnence required to maintain a sports field. There are two main differences between grass and turf: bounce and friction. First id bounce; Compared to grass, turf has a higher coefficient of restitution which means that, off the bounce, the ball will retain more of its speed ultimately speeding up the game as a
At any amusement park, there is always at least one roller coaster; its make makes the park. However when people ride it they don't actually think about how it works and the physics behind it. First of all, the first hill is the biggest in order to accumulate enough energy to get through the whole thing. And after that, gravity and the conversation of energy take the lead. Although present, the friction between the cart and the track is very little and doesn't change much. Because of this, at an
As you can guess, this is my first blog for the AP Physics C year (one of about 40). In my free time I dabble in the sports of soccer, basketball and tennis and although I am not the best or star player in any of the sports, I would consider my self consistent and fairly talented in them all. During the scarce moments in my life during which I am not playing sports, I am either doing homework, playing FIFA on Xbox, or sitting on my phone using Snapchat, Twitter and/or Instagram. I have four si
